A professional helping with water heater installation and repair.
A professional helping with water heater installation and repair.

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4.2

Great rating - 4.2/5 (11114+ reviews)

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Best rated hot water system installers near me

Recent Hot Water System Installation & Repair reviews in Sydney

Great guy. Highly recommended to anyone.

Hot water doesn’t get hot enough sometime.

$100

Quick and prompt. The man

Shower head and hot water tap is loose

$100

Fantastic service - thanks

Fix hot water unit

$250

Awesome work

Leaking hot water line under laundry sink

$200

Flyn did an amazing job, very fast and knowledgable!

Fix my hot water taps

$100

Beautiful work and clear communication from Ian, executed all the tasks as I asked 👍

RELOCATING HOT WATER TANK & PIPE WORK

$800

What's the average cost of a hot water system installer in Sydney

$129 - $320

low

$129

median

$200

high

$320

Low, median and high bar chart distribuiton

Average reviews for Hot Water System Installation & Repair Services in Sydney

based on 52 reviews

4.88

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What do hot water system installation services include?

Hot water system installation services include all the activities necessary to put a reliable, safe hot water system in your home. This involves installing an unvented hot water system, inspecting the installation area, preparing materials, installing the cylinder or tank, then making the needed connections. After the installation, your plumber can test the system for flaws and address them as needed.

Inspecting installation area

Your water heater installation begins with a thorough inspection of the spot that will house the tank and its components. Your plumber makes sure that the floor is robust enough to support the cylinder's weight and complies with established building codes and safety rules and regulations. If the allotted space is deemed insufficient for the cylinder, your plumber can help you look for an alternative spot for the unvented cylinder service. 

Preparing for installation 

Your plumber makes the necessary preparations for the hot water cylinder installation. If necessary, some plumbers may offer to make an improvised platform of sturdy materials to support the tank's weight. Otherwise, you can hire a Tasker to handle all your carpentry needs.

When appropriate, your hired plumber shuts off the power, gas, and water supply before starting the job. They can take all the necessary measurements to determine the right amount of materials, then cuts and bends wires and pipes to the appropriate lengths and widths. Your plumber may also cut holes into walls or floors as needed to allow pipes or wires to run through.

Installing the cylinder

Once the cylinder's space is ready, your plumber can proceed with the unvented hot water cylinder installation. They can place the cylinder or tank onto its designated space and position. Your plumber takes care not to damage any of the components of the vented hot water cylinder or other pipes and wires in its surroundings.

Installing components and pipes

After the cylinder is in position, your specialist proceeds with attaching the appropriate pipes, wires and components like the Temperature and Pressure Release valve, expansion vessel, immersion heater, and any other pipes and valves. As with all other stages of the unvented cylinder installation, they use appropriate materials and techniques that are compliant with state safety and building regulations and industry best practices. 

Testing the system

Your hired plumber tests the system after completing the installation. They check that each tap and shower head provides hot water on demand and flows with consistent pressure. Should variations in temperature or pressure arise, your plumber can troubleshoot the system and do the appropriate fixes. 

They repeat this process until the hot water system works without any issues. And now that your home has hot water running through your taps, tubs, and showers, why not ensure greater warmth and comfort in every room of your home? On Airtasker, you can also hire an insulation installer who can help you cut down on bills and achieve year-round comfort.

Recent Hot Water System Installation & Repair tasks in Sydney

Remove Existing Hot Water System and Return for Installation

$300

Enmore NSW 2042, Australia

6th Jun 2026

I'm looking for a licensed plumber to replace an existing hot water system. The current system is still working, so this is not an emergency replacement. The reason I want the work completed in two stages is that I plan to remove cabinetry behind the unit and complete some tiling work before the new system is installed. The job would involve: Visit 1 • Disconnect and remove the existing hot water system • Take the old unit away for disposal • Leave the area ready for cabinet removal and tiling works Visit 2 (approximately 1 week later) • Supply and install a new hot water system • Connect and test the system • Remove all packaging and rubbish I'm hoping to find a plumber who can treat this as a single project rather than charging two full call-out fees, as the second visit should be a straightforward installation once the area is prepared. Please provide: • Your availability over the next 1–2 weeks • Recommended replacement hot water systems • An approximate total cost for the project

Outdoor hot / cold mixer installed right next to hot water system

$700

Enmore NSW, Australia

3rd Jun 2026

We would like an outdoor hot / cold mixer installed onto an outdoor wall right next to a Rinnai gas hot water system (very short distance). It is for an outdoor bath but we can install that ourselves. Essential that you have a valid NSW plumbers license.

Supply and fit contactor to hot water circuit

$250

Redfern NSW, Australia

1st Jun 2026

Hi, I have an existing hot water system (3.6KW on a 20A circuit) which I would like to put on a remote timer. I'd like you to supply and install a new contactor to be controller by a Shelly smart relay (which I already have). Cheers ! Neil - Due date: Flexible

Issue with hot water

$120

Balaclava VIC 3183, Australia

23rd May 2026

Got an issue that on cold mornings there is no hot water flowing thru, it's an instant Hot water unit. There is a vibration type sound coming from the unit

Fix hot water system

$100

Botany NSW 2019, Australia

6th May 2026

Rheem hot water system not working, error is code 11 C2, seems like this means no ignition.

Great service awesome job

Repair hot water tank

$100

Beaconsfield, New South Wales

5th May 2026

Can anyone repair this hot water tank? Need it repaired asap! Electric 250L Vulcan tank.

Install a small electric hot water system

$1,000

Enmore NSW, Australia

29th Mar 2026

I need a small electric hot water system installed. It will provide hot water for a kitchen sink, a shower and a small wash hand basin.

Replace hot water dishwasher pipe

$130

Rosebery NSW, Australia

22nd Mar 2026

Looking for a qualified plumber to replace a leaking hot water pipe (see attached photos). The section needing replacement is approximately 1–1.2 metres in length. Access is straightforward, lower section, under the sink. Please bring necessary tools and materials. The final price to include the work + pipe + other materials needed

Replace current 125L electric Hot Water System with 50L HWS (Sydney)

$800

Surry Hills NSW, Australia

3rd Mar 2026

Supply and install new 50L Hot Water System (eg Rheem). Disconnect and remove current 125L electric HWS (see photos). HWS is located on small tiled platform in cafe on ground floor (easy access).

On time, good price, professional

Hot water not working at house

$100

Darlinghurst NSW, Australia

28th Feb 2026

hot water just need to be checked out

Put hot water system in the habd wash

$100

Surry Hills NSW, Australia

26th Feb 2026

Instalation how water in the hand wash

Plumber to replace spindle and washer on hot water tap in bath.

$200

Elizabeth Bay NSW, Australia

25th Feb 2026

Replace broken spindle on hot water tap for bath and re silicone against wall. Onsite parking provided.

Excellent work. Efficient and with good customer service on top.

Plumbing re connect hot water pipes

$250

Petersham NSW 2049, Australia

20th Feb 2026

I am doing my kitchen and need to disconnect/re--commect copper water pipes to fit base cabinet. If we organise the day I can cut pipes and fit cabinet so will just need to reconnect. Pipes will need to be re soldered. The sink down pipe wont need to be touched as I will connect later on so just need to re-cinnect the hot and cold water copper pipes Thanks

Come fast and did job neatly. Great service.

Install hot water supply and a sink

$2,000

Sydney NSW, Australia

4th Feb 2026

Install hot water supply to an office space. Install a sink

Hot water system replacement 50l

$800

Sydney Central Business District NSW, Australia

6th Jan 2026

Change water system and replace it for a new unit 50L. Disconnect from electricity and connect the new unit.

Thank you Abert for your excellent work . Definetely will book you again. Líbia :)

Fix hot water tank leak

$70

Marrickville NSW, Australia

15th Dec 2025

My hot water tank is leaking. Appears loose pipe. See attached pictures.

Friendly and punctual

Plumbing - hot water pressure and temp fluctuating

$10

Elizabeth Bay NSW, Australia

6th Dec 2025

The hot water in my apartment takes a while to heat up, and then cools down. The pressure also drops with two taps on. I expect it may be a TMV replacement and pressure valves. Unsure what this should cost to fix, so after a quote.

Tap fixed and hot water checked - it’s yellow

$200

Stanmore NSW 2048, Australia

17th Nov 2025

Our hot water is a pale cloudy yellow - the cold water is clear. So need to figure out what’s causing that, if it’s safe?? And how to fix. We also have a leaky bathroom tap that needs to be repaired or replaced.

So efficient, reliable and clear. Will work with Diego again.

Plumber swap hot water system, install new shower head and tap handles

$300

St Peters NSW 2044, Australia

12th Nov 2025

Swap out hot water system to new electrics system (sparky will do hookup separately) install new shower head and tap handles. I have three phase power. New water heater going in exact same spot.

Excellent spent extra time to ensure it was done right and came back the next day to tidy up!

Plumber needed for hot water tap.

$200

Surry Hills NSW 2010, Australia

10th Nov 2025

Our shower hot water tap in our bathroom is not working at all. The basin tap works perfectly. We urgently need someone to diagnose and fix as soon as possible.