# New hot water system installs in Sydney

- Published: 2026-07-14
- Last Modified: 2026-07-14
- Source: https://fixedtoday.com.au/services/hot-water-installs

## Summary

Considered-install service page for choosing and buying a new hot water system in Sydney. Hero opens the install enquiry (hot water selector), then about and ETA lead into the buyer wizard, offers and a before-you-buy checklist, live map, before/after and on-time proof. After warranty, the sizing calculator and licensing comparison support the decision; system tiles, by-the-numbers, reviews, payment and brands build trust, then the buyer’s handbook, live install ticker, the full system comparison selector and install FAQs. Enquiry and compare anchors stay on-page; lead capture closes.

- Keywords: hot water system installation Sydney, new hot water system, hot water system installs, continuous flow hot water install, heat pump hot water, solar hot water, gas hot water installation, electric hot water system, hot water system cost, hot water installer Sydney

Supply & install

Licensed plumbers & gas fitters. $10M cover.

Call now

1800 349 338

![Sydney harbour skyline](https://cdn.fixedtoday.com.au/uploads/2026/07/sydney-harbour-skyline.jpg)

### Upfront Install Price

Supply & fit quoted in writing

### Sized To Your Home

From manufacturer tables

### Rebates Applied Day 1

NSW ESS + federal STCs

### Lifetime Workmanship

Plus full manufacturer warranty

Gas, Electric, Heat Pump & Solar

Running costs compared before you buy

Old unit removed and recycled

Compliance certificate on every install

![ASBCA 2024 award](https://cdn.fixedtoday.com.au/uploads/2026/07/asbca-2024.png)

![ASBCA 2025 award](https://cdn.fixedtoday.com.au/uploads/2026/07/asbca-2025.png)

## Hot water trouble? Tell us in 4 quick taps

Pick what you’ve got, what’s happening and when you noticed, a licensed Sydney hot water plumber will call you back to walk through your options and book a free on-site visit at a time that suits you.

What style of hot water system do you have?

What’s happening with your hot water?

When did you first notice the problem?

Where should we call you back?

Send my enquiry

[Or call us now](tel:1800-349-338)

### Electric

Tank with a power lead

### Gas

Tank or instant on gas

### Heat Pump

Has an outdoor fan unit

### Solar

Panels on the roof

No hot water at all

Hot water runs out too quickly

Lukewarm or cold water only

Leaking unit or tank

Pilot light won’t stay lit

gas

Strange noises (banging, rumbling)

Rusty or discoloured water

Smelly water (rotten egg)

Low hot water pressure

Water is dangerously hot

Takes too long to heat up

Relief valve dripping water

Tempering / mixing valve issue

Tripping the circuit breaker

electric,heat-pump,solar

Gas smell near the unit

gas,solar

Heat pump fan not working

heat-pump

Solar booster not kicking in

solar

Anode rod or tank corrosion

Energy bill jumped suddenly

Water stains on walls or ceiling

System is 10+ years old

Looking to upgrade

electric,gas,solar

Need a new installation

Something else, we’ll diagnose

Today

In the last few days

A week or more ago

No problem yet, just planning

## The team that has installed 1,500+ hot water systems across Sydney

Sydney hot water install specialists

We are not a generalist plumber who fits the occasional unit. Hot water is core to what we do, so the advice is impartial, the sizing is done from manufacturer tables, and the install is tidy, compliant and rebate-ready from day one.

Founded in 2010 by owner Steven Bahbah, our family-run team has planned and fitted new hot water systems across greater Sydney, from a first-time install in a Bondi renovation to a planned electric-to-heat-pump upgrade in Mosman. Every install is run by a fully ticketed plumber and gas fitter under NSW Licence 305428C, ends with a Certificate of Compliance, and shows the rebate value on day one, not as a promise to chase later.

Sydney-wide hot water install coverage

[Meet the team](https://fixedtoday.com.au/about-us)

1,500+

Hot water systems installed

Since 2010

Family-run, licensed Sydney installers

$1.4k

Avg heat pump rebate (NSW + STC) applied

4.9★

From 761 Google reviews

NSW Plumbing Licence 305428C

WaterMark & WELS registered

Rheem, Rinnai & Dux accredited

Booking now · free on-site install quotes across Sydney

Same-week new hot water installs across Sydney

[Talk to an installer](tel:1800-349-338)

Licensed plumber & gas fitter

Rebate value confirmed before you buy

## Hi there. Planning a new hot water system?

New installs are what this page is about; but if you landed here for a repair or a different job, pick what you need and we’ll tailor everything to you.

Not sure which system suits your home? We’ll help you choose on a free call.

## Real savings on a new system, applied on the day

Current install offers

Genuine value on new hot water installs; no fake countdowns, no “call to find out” pricing. Stack with any active manufacturer rebate or government incentive you qualify for.

### Free on-site install quote

All install enquiries

$0 Quote

We assess placement, sizing, gas and electrical, then give you a fixed supply-and-install price before you commit. No quote fee, no pressure, no obligation to proceed.

[Book a free quote](https://fixedtoday.com.au/contact-us)

![Zero call out coupon](https://cdn.fixedtoday.com.au/uploads/2026/06/zero-call-out-coupon.jpg)

### NSW + federal heat pump rebates, applied on the day

Heat pump upgrades

Up to $1,640

Where you qualify, the NSW Energy Savings Scheme incentive plus federal STC credits are deducted on your written quote, subject to eligibility. We lodge the paperwork.

![Book online and save coupon](https://cdn.fixedtoday.com.au/uploads/2026/06/book-online-and-save-coupon.jpg)

### Book your install quote online

Online booking

Save $55*

Get $55 off your new hot water install when you book through our website. Applied automatically to your final invoice.

[Book online](https://fixedtoday.com.au/contact-us)

![Senior discount coupon](https://cdn.fixedtoday.com.au/uploads/2026/06/senior-discount-coupon.jpg)

## 4 things to check before you choose a new hot water system

Before you buy

A little prep before you install saves money for a decade. Work through these four checks; then use the enquiry form or comparison tool below and we’ll confirm everything on a free on-site visit.

Switching to or from gas? Read this first.

Any new gas hot water install, gas conversion, or decommissioning of an old gas unit must be carried out by a licensed gas fitter. Incorrect flue clearances, undersized gas lines or a capped line left unsafe are serious hazards. If you smell gas at any point, do not switch anything electrical on or off, leave the area, and call **000** or your gas provider. For a compliant gas hot water install, call us on 1800 349 338.

New heat pump and electric installs may need a dedicated circuit or off-peak wiring; we confirm the electrical requirements on your on-site quote so there are no surprises.

1800 349 338

[Talk to a hot water installer now](tel:1800-349-338)

### Count the people and the peak demand

Sizing is driven by how many people live in the home and how much hot water is used at once (two showers plus the dishwasher, for example), not by what unit was there before. As a Sydney rule of thumb, allow around 50 litres of storage per person, or a 26L/min continuous flow unit for households of four or more. Getting this right is the single biggest factor in whether a new system runs out in winter.

### Check what fuel is actually available

Confirm whether you have mains natural gas, LPG bottles, or electric only. Continuous flow and gas storage need a gas connection and correct flue clearances; electric and heat pump need only power; solar needs unshaded, correctly-oriented roof space. The best system on paper is no use if the connection is not there, so this shapes your shortlist first.

[Ask us what your property supports](https://fixedtoday.com.au/contact-us)

### Find the right spot; indoor vs outdoor

Storage tanks can sit inside or out; heat pumps need outdoor space with clear airflow and, ideally, a spot away from bedroom windows because the fan makes mild noise. Continuous flow gas units mount on an external wall with flue clearance. Relocating from the old position is often possible but adds pipework, so factor placement in before you choose.

[Talk through placement options](https://fixedtoday.com.au/contact-us)

### Compare running cost, not just sticker price

A cheap electric storage unit can cost $700 to $900 a year to run, while a heat pump can run for $200 to $350 a year. Over a 10 to 15 year life that gap often outweighs the higher upfront price, and rebates narrow it further. Always compare total cost of ownership, including any NSW ESS and federal STC rebate you qualify for.

Typical outdoor tank placement

Heat pump needs airflow clearance

## How soon can an installer visit your suburb?

Live availability

Track our hot water install team across Sydney in real time. Enter your suburb and we’ll show the estimated travel time from the closest available installer for a free on-site quote.

Get an arrival estimate for your suburb

Enter your suburb or address; we’ll show typical travel time and current availability for new hot water install quotes in your area.

Calculate Travel Time

Markers show approximate service zones, not exact positions. Zones cover a ~3 km radius.

ETAs are estimates based on approximate zone data and typical traffic conditions. Actual times may vary depending on booking volume and scheduling.

## What changes when a licensed installer plans your new system?

Before vs After

A new hot water system is a 10 to 15 year decision, and it is one of the easiest jobs to get wrong on price alone. Here is exactly what shifts when a licensed Sydney installer plans and fits it, instead of a handyman or a like-for-like guess.

Before

Cheapest quote or DIY guess

After

Licensed Fixed Today install

[Book a licensed installer](https://fixedtoday.com.au/contact-us)

## The exact thread you’ll see on install day

What you’ll actually get

No marketing fluff. Every install customer gets a thread like this on the day; booked, installer assigned, ETA, vehicle ID, knock at the door. You always know what’s next.

[Read the full guarantee](https://fixedtoday.com.au/our-difference)

[Get this thread on your phone](https://fixedtoday.com.au/contact-us)

### 8:04 am

Booked in 👋 Marc’s your installer for the 10am to 12pm window. New 280L Reclaim heat pump, Mosman. Reply STOP to cancel.

### 8:06 am

Thanks 🙏 the old electric unit is on the side of the house

### 10:48 am

Marc’s on the way; current ETA 11:08. New unit, tempering valve and rebate forms loaded. Tracking: ftd.au/m/9F2

### 11:03 am

5 minutes away. Silver Hilux, plate FTD-92.

### 11:04 am

Front gate code is 1408

### 11:09 am

Knocking now ✅

Booked · A real installer assigned, in writing.

Your 2-hour window, installer name, vehicle and exact system being fitted; confirmed by SMS within minutes. Not a queue, not a callback.

Routed · Live ETA, refreshed as they drive.

Once your installer leaves the depot the ETA SMS auto-refreshes. No need to call and ask whether they’re still coming.

Warned · 5-minute heads-up at the door.

We text when the installer is 5 minutes away, including vehicle and plate so you know who’s knocking before you open the door.

Honoured · Late-fee waiver, automatic.

Miss the window without warning and the call-out portion of your invoice is automatically waived. No claim form, no negotiation.

## We turn up when we say we will; here is the proof

On-Time, Live

![Sydney harbour skyline](https://cdn.fixedtoday.com.au/uploads/2026/07/sydney-harbour-skyline.jpg)

Every hot water install we attended today, with the booked window, the actual arrival time, and whether we hit it. We publish the misses too; and waive the call-out fee when we cause one.

[See last 30 days of data](https://fixedtoday.com.au/our-difference)

[Book an install slot](https://fixedtoday.com.au/contact-us)

### 11:42 am · Heat pump install, Mosman

Booked 10:00 to 12:00 · arrived 1h 42m in

### 10:55 am · New continuous flow, Newtown

Booked 11:00 to 1:00 · arrived 5 min early

### 10:18 am · Electric-to-solar upgrade, Manly

Booked 9:00 to 11:00 · arrived 1h 18m in

### 9:48 am · New build install, Parramatta

Booked 7:00 to 9:00 · arrived 48 min late · $0 call-out applied

### 9:05 am · 315L gas storage install, Chatswood

Booked 8:00 to 10:00 · arrived 1h 5m in

### 8:22 am · Heat pump relocation, Bondi

Booked 8:30 to 10:30 · arrived 8 min early

47/48

On time today (installs)

23 min

Avg arrival into window

97.6%

30-day on-time rate

## What other hot water installers *won’t* tell you.

The honest comparison

Side-by-side with what most homeowners actually receive when they pay $1,200 to $8,000 for a new hot water system; no spin, no fine print. Just what we include as standard on a supply-and-install, and what tends to quietly get left off elsewhere.

Verified against published industry practice, Every column reflects our standard offer, No “premium” tier; this is what you get

[Lock in an honest install quote](https://fixedtoday.com.au/contact-us)

## How a new hot water install works in Sydney

How It Works

Same upfront supply-and-install pricing whether it is a straight swap, a first-time install in a renovation, or a strata upgrade. Here is exactly what to expect from the first call to the warranty card.

Every hot water install in Sydney is backed by our lifetime workmanship warranty plus the full manufacturer parts warranty; in writing, on your invoice.

Tell us about your home and what you want

Household size, current fuel (gas, electric, LPG, solar), where the unit sits, and what matters most; lowest running cost, biggest rebate, or lowest upfront. We use this to shortlist the right system types before we visit.

Free on-site assessment and sizing

A licensed installer checks placement, gas and electrical, flue clearances and roof aspect, then sizes the system from manufacturer tables for your peak demand; so the unit is neither undersized nor wasteful.

Options and running costs, in writing

You get itemised supply-and-install pricing for each suitable system, projected annual running cost, warranty length, and any NSW ESS and federal STC rebate you qualify for, pre-calculated. You decide; no upsell, no pressure.

Install, compliance and warranty paperwork

A typical storage install takes 2 to 3 hours; heat pump and solar can be a half-day. We remove and recycle the old unit, fit a compliant tempering valve, set the thermostat to 60°C, then email your compliance certificate and warranty card before we leave.

Old unit failed? Fast replacement install

If your existing unit has given out, we prioritise a same-day or next-day install so you’re not left with cold showers, and we still take the time to size the new system properly rather than just matching the old one.

Make it safe while we’re en route

If the old unit is leaking, we talk you through closing the cold inlet and isolating power or gas safely, so damage is contained before the installer arrives.

Right system on the truck, not just the cheapest

Common 50L to 315L electric and gas units are carried on the truck for fast turnarounds. Heat pump and solar systems are typically ordered and installed within a day or two so you still get the efficient option, not a rushed compromise.

New system in, fully warranted

Pressure tested, temperature set to 60°C tank / 50°C delivery, tempering valve fitted, rebate lodged, and compliance certificate filed with NSW Fair Trading.

Site review and access requirements

Strata, hospitality, gym, aged-care or commercial laundry? We coordinate with building management, lift bookings, and after-hours access ahead of the install.

Compliance and SWMS

Plumbing licence (305428C), gas licence, $10M public liability, SWMS and JSA documents prepared and supplied before we step on site; no chasing.

Scoped quote with three options

Like-for-like replacement, a right-sized upgrade, and an efficiency option (heat pump or solar) presented side by side with payback periods and rebates costed in.

Scheduled install around your operations

After-hours, staged, or weekend installs available. We handle disposal of the old unit and provide WHS sign-off and a compliance certificate for your records.

## Two warranties on your new system; both in writing, both honoured

Our Guarantee

Every hot water install is covered by our lifetime workmanship warranty on the install and the full manufacturer warranty on the new unit and parts. Both are explained in plain English on your invoice. No fine print, no exclusions you have to dig out of a PDF.

Lifetime Workmanship

Plus Manufacturer Cover

[Book with confidence](https://fixedtoday.com.au/contact-us)

### Lifetime Workmanship Warranty

If our install workmanship fails at any point while you own the property, we come back and fix it at no charge. No time limit, no excess, no questions asked.

### Full Manufacturer Parts Warranty

Tank: 5 to 10 years depending on brand. Heat pump compressor: up to 6 years. Heating element and burner: 1 to 3 years. We register the warranty and handle any claim directly with the manufacturer for you.

### Upfront Fixed Install Pricing

The supply-and-install price we quote is the price you pay. If access or old pipework turns a 2-hour job into a 4-hour job, that is on us, not you.

### Compliance Certificate

Every install includes a Certificate of Compliance lodged with NSW Fair Trading. Required for insurance, resale and gas safety. We email you a copy and keep one on file.

### Rebates Applied, Not Chased

Where you qualify, we deduct the NSW ESS and federal STC rebates on the day and lodge the paperwork ourselves. Final rebate value depends on the model, your existing system and postcode; confirmed on your written quote.

### Old Unit Removed and Recycled

We disconnect, drain and remove your old unit at no extra cost. Steel, copper and brass go to a licensed Sydney scrap merchant; not landfill, not your kerb.

![Rheem authorised installer](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/rheem-logo.svg)

![Rinnai authorised installer](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/rinnai-logo.svg)

![Dux authorised installer](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/dux-logo.svg)

## What size hot water system should you install?

Sizing calculator

Pick your household size; we’ll show the recommended capacity for every system type, based on Sydney averages and manufacturer sizing tables. Sizing a new system correctly is the single biggest factor in whether it runs out in winter.

50

4

[Talk to a hot water expert](tel:1800-349-338)

## Licensed plumber vs. unlicensed worker

Why licensing matters

Plumbing work in NSW must be carried out by a licensed plumber. It is not just a formality, licensing protects your home, your insurance, and your right to recourse if something goes wrong.

Licensed plumber

Unlicensed worker

Most home insurance policies will not pay out for damage caused by unlicensed plumbing work. A burst hot water unit from a non-compliant install can void cover on the entire claim, often tens of thousands of dollars.

How to verify a licence

Our NSW Plumbing Licence

305428C

PLATINUM HOT WATER AND PLUMBING PTY LIMITED

[Verify on NSW Fair Trading](https://www.service.nsw.gov.au/transaction/check-tradesperson-or-contractor-licence)

Work is insured and meets the National Plumbing Code

Compliance Certificate issued for every job

Home insurance and warranty stay valid

Statutory warranty backed by NSW Fair Trading

Clear path to dispute resolution if needed

Work may breach the NSW Plumbing and Drainage Act

No Compliance Certificate: issues at resale

Home insurance claims commonly denied

No statutory warranty on the work performed

Limited recourse: Fair Trading cannot assist

### Open the Fair Trading check

Use the official NSW Service licence lookup, it’s free and instant.

### Enter the licence number

Ask any tradesperson for their plumbing licence number before they start.

### Match name and class

Confirm the licence is current and held in the trading name on your quote.

## Hot water systems we supply and install every day

New systems we install

These tiles describe the new systems we install; they are not separate booking pages. Tap through to the enquiry form on this page and tell us about your home; we match you to the right system and quote from there. Not sure which suits you? Use Compare systems or the sizing calculator further down.

### Heat Pump Install

Lowest running cost, up to 75% less hot water energy vs electric. NSW + federal rebates deducted on the day where eligible.

Best value

### Continuous Flow Gas

Endless instant hot water, no tank. Ideal for larger households with mains gas and a suitable external wall.

### Gas Storage Install

Fast recovery storage on natural gas or LPG. A reliable all-rounder for family homes with gas available.

### Electric Storage Install

Lowest upfront cost, fits anywhere with power. Common 50L to 315L sizes carried on the truck.

Lowest upfront

### Solar Hot Water Install

Roof panels with electric or gas booster; the greenest option and longest lifespan. Rebates and STCs applied.

Greenest

### New Build & Reno Install

First-time installs for new builds and renovations. Includes sizing, mounting, gas/electric, flue and compliance.

### Upgrade & Relocation

Switching fuel type or moving the unit to a better spot. We handle the extra pipework, gas and electrical safely.

### Tempering Valve

Mandatory in NSW on every install, rated for 5 years. Compliant 50°C valve fitted as standard with your new system.

## Sydney hot water installs, by the numbers

What we do

We install new hot water systems every day across Sydney, from rentals in the Inner West to executive renovations on the Northern Beaches. Here is the volume behind the team.

[Book a hot water installer](https://fixedtoday.com.au/contact-us)

NSW licensed plumbers and gas fitters on every install (Lic 305428C)

Sized from manufacturer tables; rebates confirmed before you buy

1,500+

Hot water systems installed since 2010

4.9★

From 761 Google reviews

$1.4k

Avg combined NSW + STC rebate applied per heat pump

Typical Sydney electric-to-heat-pump install: up to $640 from the NSW Energy Savings Scheme stacked with federal STCs (~$700 to $1,000), subject to eligibility.

97.6%

On-time arrival, 30-day average

## What Sydney says after we install a new system

Customer Reviews

A new hot water system is a big decision. These are real customers; first-time installs, heat pump upgrades, solar conversions; telling you what choosing and installing with us was actually like. 4.9 stars from 761 Google reviews.

[Read all reviews](https://fixedtoday.com.au/reviews)

## Pay how you like, only when the job is done

Payment options

Cards, EFTPOS, mobile wallets and bank transfer accepted on the spot. No payment required until your plumber finishes the job to your satisfaction.

We accept

Interest-free split payments via Afterpay & Zip on jobs over $200.

[Book a plumber](https://fixedtoday.com.au/contact-us)

### Pay on completion

Settle once you’re happy with the work.

### Tax invoice supplied

Itemised invoice emailed on the spot.

### Split payments

Afterpay & Zip on jobs over $200.

### Secure mobile payment

Tap-to-pay with Apple Pay or Google Pay.

## Brands we service

### Rinnai

![Rinnai](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/rinnai-logo.svg)

### Ray White

![Ray White](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/ray-white-logo.svg)

### Bunnings

![Bunnings](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/bunnings-logo.svg)

### Belle Property

![Belle Property](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/belle-property-logo.svg)

### Rheem

![Rheem](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/rheem-logo.svg)

### McGrath

![McGrath](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/mcgrath-logo.svg)

### Mitre 10

![Mitre 10](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/mitre-10-logo.svg)

### First National Real Estate

![First National Real Estate](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/first-national-real-estate-logo.svg)

### Dux

![Dux](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/dux-logo.svg)

### Harcourts

![Harcourts](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/harcourts-logo.svg)

### Caroma

![Caroma](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/caroma-logo.svg)

### Raine & Horne

![Raine & Horne](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/raine-horne-real-estate-logo.svg)

### Thermann

![Thermann](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/thermann-logo.svg)

### LJ Hooker

![LJ Hooker](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/lj-hooker-logo.svg)

### Reece

![Reece](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/reece-logo.svg)

### AquaMax

![AquaMax](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/aquamax-logo.svg)

### Vulcan

![Vulcan](https://cdn.fixedtoday.com.au/themes/fixedtoday/images/vulcan-logo.svg)

## How to choose a new hot water system you won’t regret

Buyer’s Handbook

A short editorial guide written by our senior hot water installers. No fluff, no brand bias; just the checks an experienced buyer makes before signing off on a new $4,000 system.

The six checks that matter most

Walk-away signs on a new-install quote

Six questions every buyer should ask

Verify a hot water installer’s licence yourself

Service NSW lets anyone verify a plumber’s contractor licence in under a minute; and a hot water install legally requires one. Bookmark the link: it is the single most useful tool a buyer has.

[Open the Fair Trading check](https://www.service.nsw.gov.au/transaction/check-tradesperson-or-contractor-licence)

[Get a transparent install quote](https://fixedtoday.com.au/contact-us)

### Size before brand; always

An undersized system will run cold every winter and fail years early; oversized wastes money heating water no one uses. The correct size is driven by household occupancy, peak simultaneous demand (showers + dishwasher), and recovery rate; not by what was there before. Most systems we replace were sized by guesswork, not by manufacturer tables.

Every quote shows the recommended capacity per system type, calculated from your household and Sydney peak-demand averages.

### Compare running cost, not just install price

A $1,200 electric storage unit can cost $900/year to run. A $4,500 heat pump can cost $250/year. Over a 12-year lifespan, that gap is roughly $7,800; nearly double the upfront difference. The real comparison is total cost of ownership, not the cheapest sticker.

Our quote shows installed price, projected annual running cost, and any rebate; side by side, on the same page.

### Confirm the rebate is locked in, not hoped for

There are two separate incentives on heat pumps and solar; the NSW Energy Savings Scheme (Hot Water Upgrade Incentive) administered by IPART, and federal Small-scale Technology Certificates (STCs) administered by the Clean Energy Regulator. Both depend on the unit being on the CER’s approved register, the installer being partnered with an Accredited Certificate Provider (ACP), and a signed nomination form being lodged before work starts. “We’ll help you claim it later” is a red flag. Both amounts should appear as separate line-item deductions on your written quote, dated, before any work begins. Final value depends on your model, existing system and postcode.

We’re partnered with an ACP, deduct both NSW and federal rebates directly on the day where you qualify, lodge the paperwork ourselves, and only quote heat pumps that carry the required minimum 5-year warranty. You never wait, never claim.

### Demand a Certificate of Compliance, not a receipt

In NSW, every hot water installation must be issued with a Certificate of Compliance lodged with NSW Fair Trading. If your installer cannot produce one, the work is not legally compliant; your home insurance will not cover damage from it, and your buyer’s solicitor will flag it on resale.

Compliance certificate emailed before our installer leaves your driveway, and lodged with Fair Trading the same day.

### Check the tempering valve is in the quote

NSW law requires water to ablutions to be delivered at 50°C or lower, and AS/NZS 3500 governs the install. The tempering valve is what enforces that temperature, and it is rated for 5 years. A new-install quote that does not include a tempering valve is not compliant work.

Every install quote includes a new AS/NZS-compliant 50°C tempering valve, fitted and pressure-tested.

### Insist on itemised, not lump-sum

An itemised quote shows the unit cost, the labour, any pipework, the tempering valve, the old-unit disposal, the compliance certificate, and the GST. Lump sums hide cost-cutting; cheap valve, no flue clearance, dumped at the kerb. The detail is the protection.

Every quote is line-itemed, with manufacturer model numbers, so you can compare apples to apples between installers.

### Plan placement and controls to actually save money

Indoor vs outdoor placement affects pipe runs, noise and clearances; heat pumps in particular need clear airflow and are best kept away from bedroom windows. Set the thermostat to 60°C for safe storage and Legionella control. If you have solar PV, fit a timer and run the heat pump or electric booster during the sunniest part of the day so you heat water with free power instead of grid imports.

On every install we agree the best placement, set the thermostat to 60°C, configure the timer to your tariff or solar window, and walk you through clearances and fault codes before we leave.

No model number on the quoted unit

Rebate “applied later” with no figure on the quote

Sized the same as the old unit with no questions asked

No tempering valve line on the install

Compliance certificate as an optional extra

Running cost never mentioned, only install price

What size and brand are you quoting, and why?

A real answer cites your household size, the peak simultaneous demand of your home (e.g. "4 people, 2 showers running together"), the manufacturer’s sizing table, and a brand chosen for warranty length and parts availability; not just stock on hand.

Which system is cheapest to run, not just to install?

Ask for the projected annual running cost of each option alongside the install price. A heat pump or solar system often costs more upfront but far less to run; over 10 to 15 years the total cost of ownership can favour the more efficient system, especially with rebates applied.

Is the rebate calculated and deducted on the day, or do I claim later?

Look for both the NSW Hot Water Upgrade Incentive and the federal STC rebate to appear on the quote as separate dollar values, with the model’s STC code shown. Both should be deducted from the invoice on installation, subject to eligibility, and you should sign a nomination form before work begins. “You can claim it yourself” almost always means a long chase or a missed rebate.

Will I receive a Certificate of Compliance, and when?

Yes, every install; lodged with NSW Fair Trading by the installer, with a copy to you the same day. If an installer says “don’t worry about it” or “we’ll send it next week”, the work is unlikely to be compliant.

Is a new tempering valve included on the install?

On any tank or instant unit serving ablutions, yes; NSW law requires 50°C delivery via a tempering valve under AS/NZS 3500, and the valve is rated for 5 years. An install that omits it is non-compliant and a future failure point.

What is the manufacturer’s warranty, and who handles a claim?

Tank warranties range 5 to 10 years depending on brand; heat pump compressors up to 6 years. A reputable installer registers the warranty for you and handles the claim end-to-end if the unit fails; you should not have to negotiate with the manufacturer yourself.

NSW licensed plumbers & gas fitters (305428C)

CER-accredited heat pump installer

Lifetime workmanship in writing

Itemised, model-specific quotes

## Right now across Sydney

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## Which hot water system is right for you?

Hot Water Selector

Compare electric, gas, heat pump and solar side by side. Realistic Sydney price ranges, running costs and rebates so you can choose with confidence.

Prices are indicative installed ranges for a typical Sydney home, in line with NSW Energy guidance. The NSW Hot Water Upgrade Incentive is administered by IPART under the Energy Savings Scheme; eligibility requires the unit to be on the Clean Energy Regulator’s register, an installer partnered with an Accredited Certificate Provider, and a signed nomination form before work begins. Final amount is confirmed on your written quote.

Most families

Not sure which to pick? Answer 3 quick questions

Tell us about your household and what matters most, we’ll match you to the best hot water system in seconds.

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[Get a hot water quote](https://fixedtoday.com.au/contact-us)

[Talk to a hot water expert](tel:1800-349-338)

### Electric

Cheapest to install, highest running cost

$900–$2,500

$700–$900/yr

10–15 years

Limited rebates

Small households, low upfront budget, off-peak power tariffs

Cheapest install

Low upfront cost, Works anywhere, Simple to replace

Highest running cost, Slowest recovery, Limited rebates

[Electric](https://fixedtoday.com.au/services/hot-water)

### Gas

Fast recovery, reliable in winter

$1,400–$3,500

$400–$700/yr

10–15 years

Some NSW rebates

Larger households with mains gas connection

Quick recovery, Lower running cost than electric, Works in blackouts (no power needed)

Needs gas connection, Carbon emissions, Flue clearance rules

[Gas](https://fixedtoday.com.au/services/hot-water)

### Heat Pump

Up to 75% less hot water energy use vs electric

$2,000–$6,000

$200–$350/yr (saves $200–$800/yr)

10–15 years

Up to $640 NSW + ~$700–$1,000 STC

Most households, best balance of efficiency and rebates

Best value

Lowest running cost (after solar), NSW + federal rebates stacked, Works with solar PV via timer

Higher upfront cost, Needs outdoor space with airflow, Mild noise (like an AC)

[Heat Pump](https://fixedtoday.com.au/services/hot-water)

### Solar

Cuts water heating bills by around 80%

$4,000–$8,000

$100–$300/yr (saves $190–$700/yr)

15–20 years

Up to $900 NSW (electric booster) + STCs

Sun-facing roofs, families running multiple showers a day

Greenest

Lowest running cost, Longest lifespan, ~3 tonnes/yr CO2 saved

Highest upfront cost, Needs roof space and sun, Electric / gas booster on cloudy days

[Solar](https://fixedtoday.com.au/services/hot-water)

## New hot water system questions, answered straight

FAQs

Direct answers to the questions our install customers ask most. If yours is not here, give us a call; we’ll tell you straight.

### Which hot water system is best for my home?

For most Sydney households a heat pump is the best balance: it uses up to 75% less energy than electric and attracts stacked NSW and federal rebates. Gas suits larger homes with a mains connection, electric is cheapest upfront, and solar is greenest if you have roof space. We size and recommend on-site.

### What size hot water system do I need?

The Sydney rule of thumb is 50 litres of stored capacity per person, or a 26L/min continuous flow unit for households of 4 or more. Use the sizing calculator on this page (jump to [hot water size calculator](#hot-water-size-calculator)) for a recommended size by system type; your installer confirms it on-site before fitting.

### Gas vs electric vs heat pump; what’s the real difference?

Electric is cheapest to install but dearest to run (about $700 to $900/yr). Gas recovers fast and runs $400 to $700/yr if you have mains gas. A heat pump costs more upfront but runs $200 to $350/yr and earns the biggest rebates, so it usually wins over a 10 to 15 year life.

### How much does it cost to install a new hot water system?

Indicative installed ranges for a typical Sydney home: electric $900 to $2,500, gas $1,400 to $3,500, heat pump $2,000 to $6,000, and solar $4,000 to $8,000. Where you qualify, NSW and federal rebates reduce heat pump and solar prices. We give you a fixed supply-and-install quote before any work.

[Get an install quote](https://fixedtoday.com.au/contact-us)

### How long does a new hot water install take?

A like-for-like storage swap is typically 2 to 3 hours including draining and removing the old unit. Continuous flow gas is a similar half-day job. Heat pump and solar installs, and any fuel change or relocation, are usually a half to full day. We confirm the timeframe on your quote.

[Book an install](https://fixedtoday.com.au/contact-us)

### Are heat pump and solar rebates available, and do you handle the paperwork?

Yes, where you qualify. The **NSW Hot Water Upgrade Incentive** (under the NSW Energy Savings Scheme, administered by IPART) is up to **$640** replacing an electric heater with a heat pump, plus federal **STCs** worth roughly **$700 to $1,000**. We’re partnered with an Accredited Certificate Provider, only quote units on the CER register, deduct both on the day, and lodge the paperwork ourselves.

[Quote with rebate applied](https://fixedtoday.com.au/contact-us)

### Can I install the new unit indoors, outdoors, or in a new spot?

Storage tanks can go indoors or out; continuous flow gas mounts on an external wall with flue clearance; heat pumps need outdoor space with clear airflow, ideally away from bedroom windows. Relocating from the old position is usually possible but adds pipework. We confirm the best placement on-site.

[Discuss placement](https://fixedtoday.com.au/contact-us)

### Is a tempering valve and compliance certificate included?

Yes. Every install includes a new AS/NZS 3500-compliant 50°C tempering valve and a Certificate of Compliance lodged with NSW Fair Trading. Both are mandatory in NSW and required for insurance and resale. We email your certificate the same day; there are no optional extras hiding compliance.

[Tempering valve info](https://fixedtoday.com.au/services/hot-water-repairs)

### Do you install in apartments and strata buildings?

Yes. We work with strata managers and building access requirements regularly. We can quote like-for-like or upgraded installs that meet body corporate rules, and we provide all SWMS, licence (305428C) and insurance documents required for sign-off.

[Talk to us about your strata](https://fixedtoday.com.au/contact-us)

## Related plumbing tips & guides

From the blog

Advice from our licensed plumbers, practical fixes, buying guides and what to do before we arrive.

[View all articles](https://fixedtoday.com.au/blog)

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