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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Recent Hot Water System Installation & Repair reviews in Melbourne

Great communication, very professional.

Swap gas hot water system

$250

Good bloke - on time. Thank you!

Plumber - Rinnai hot water inconsistency

$100

Very professional. Highly recommended

Fix hot water in bathroom

$100

Prompt, efficient and skilled. Very glad to have him solve my issue

Cap off a laundry hot water tap.

$110

Brilliant work

Plumber to fix burst hot water pipe under sink

$200

Mark was informative and gave me lots of info to work off.

Plumber to fix hot water systen

$100

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

$129 - $300

low

$129

median

$197

high

$300

Low, median and high bar chart distribuiton

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

based on 143 reviews

4.9

134
5
3
1
0

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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 Melbourne

Rinnai B26 Continuous Flow Hot Water System Diagnosis

$10

Canal Ward VIC, Australia

5th Jun 2026

Rinnai B26 Continuous Flow Hot Water System Diagnosis - Mentone VIC Looking for an experienced gas plumber familiar with Rinnai continuous flow hot water systems. Unit is a Rinnai B26 (manufactured 2013). Symptoms: • Hot water failed while a bath was running. • Unit will restart after power cycling. • Ignites and produces hot water. • Runs for approximately 10 seconds then shuts down. • Power remains on. • No circuit breakers are tripping. • Outdoor powerpoint has been ruled out by testing from an alternative power source with the same result. Looking for: • Fault diagnosis and repair quote. • Honest advice whether repair is worthwhile versus replacement. • Experience with Rinnai continuous flow units preferred. Please note: We are NOT seeking replacement quotes at this stage. We are specifically looking for fault diagnosis and repair assessment before considering replacement options. Property is a rental in st kilda. Please quote: • Call-out fee. • Diagnostic fee. • Earliest availability. Photos attached.

Install and connect 2 commercial hot water machines

$200

Melbourne VIC, Australia

2nd Jun 2026

Need a licensed plumber/electrician (or someone qualified) to help install and connect 2 commercial hot water machines at 2 different Melbourne CBD locations. Tasks required: * Connect water inlet/outlet for both machines * Connect and check drainage if required * Connect/install 16A power plug Machines are brand new and onsite. Locations: * 203 Elizabeth St, Melbourne CBD * 249 Lonsdale St, Melbourne CBD

Hot water system installation

$10

St Kilda West VIC 3182, Australia

29th May 2026

My hot water system decided to not to play nice and stop working as I moved in. I have bought a new hot water system. Need the other one disconnected and this one connected. Both natural gas hot water systems. Approval for it to be externally put on the wall.

Chris was great, very communicative and got the job done to a great standard. Highly recommend him!

Plumber connect hot water to dishwasher and washing machine

$80

South Yarra VIC, Australia

28th May 2026

I need someone to come and connect my dishwasher and washing machine too hot water. We just moved into a rental and were unable to connect ourselves but it does exist.

Hot water heater not working

$100

St Kilda VIC 3182, Australia

23rd May 2026

I have a client that has a hot water heater not working. They need someone to come out today. My plumber is not available. Need someone to come

Great service and great quality

Hot water unit leaking

$250

Port Melbourne, Victoria

17th May 2026

Bosch instantaneous gas hot water unit leaking from internal white plastic water flow valve / water assembly underneath unit. Slow drip even when taps off. Still working well but need the drip sorted.

Hot Water Heater System

$300

Melbourne CBD VIC 3000, Australia

15th May 2026

I’m having an issue with the electric hot water system in my apartment (Stiebel Eltron DEL18AU). The shower and all taps are only producing cold water. I’ve tried troubleshooting it several times by turning off the MCB and then resetting the heater. It worked again about two weeks ago, but now it’s gone back to cold water only, and this time I can’t get it to heat up at all. The display still shows 50 (Celcius; max temp), but no hot water coming out.

The bathroom sink tap isn’t releasing hot water

$50

Southbank VIC 3006, Australia

13th May 2026

The bathroom sink tap is not releasing any hot water. Cold water is working normally, but the hot water does not come through when the tap is turned on.

Increase heat on gas instant hot water

$100

Brunswick East VIC 3057, Australia

11th May 2026

I have a Rinnai Solar 26 gas instantaneous hot water unit and the hot water is barely above warm. I have tried adjusting the dip switches as per the manual but it hasn't helped. I'm looking for a qualified plumber who can get hotter water out of this unit. As I have already tried the dip switches, please don't come if that is your only solution.

Daniel fixed our instantaneous gas hot water service, getting it from luke warm to steaming hot.

Gas for hot water stopped working

$100

Brunswick VIC 3056, Australia

3rd May 2026

Gas not working for hot water need someone to come and take a look asap

Hot water needs to be hotter see if you can adjust the unit

$100

Fitzroy VIC 3065, Australia

27th Apr 2026

Unit is under a cupboard and needs to be taken out to access it. Have no idea how to take the cupboard out.

Unit had to be replaced did a diagnoses.

Replace tap for kitchen sink and check hot water connection to sink

$100

North Melbourne VIC, Australia

6th Apr 2026

We would like to replace the tap for the kitchen sink as the existing one is spraying. The hot water connection to the tap also appears to have a small leak which we presume would be repaired when a new tap is installed.

Cooper did a great job replacing our kitchen tap. Would recommend and will use again

Remove and cap off hot water tap

$50

Brunswick East VIC 3057, Australia

28th Mar 2026

This hot water tap is preventing me from putting a dryer on top of my washing machine. I need it removed and capped off (doesn't need to look a specific way).

Very prompt and friendly. Definitely recommend.

Fix gas hot water system – pilot won’t light (Aquamax 390)

$120

Nicholls Ward VIC, Australia

1st Mar 2026

My gas storage hot water system (AquaMax 390SS-NG) has stopped producing hot water. The pilot light will not ignite. What’s happening: • The pilot is out and won’t relight • The red igniter button clicks, but there is no visible spark • Not sure if pilot gas is flowing • The big control dial turns, but pilot position isn’t responding normally • No flame appears at all

Guy was wonderful! Went above and beyond to figure out the issue and resolve it for me. Will absolutely use again!!!

Installation of Outdoor Hot Water Unit

$150

West Melbourne VIC, Australia

24th Feb 2026

I am seeking a licensed plumber to install a Rinnai B26 continuous flow gas hot water system onto a steel fence located in an outdoor apartment courtyard. Scope of Works: Install new Rinnai B26 unit (**UNIT WILL BE SUPPLIED BY OWNER**). 240 volt Power Supply already available and located at installation point. Extend existing 32mm gas copper line approximately 10 metres from garage (ground floor basement) to new unit location in external courtyard (Level 1). Gas line to run from basement to courtyard via pre-prepared penetration hole. **Please note GAS FITTING work will be required** by a Certified Plumber. Plumber will be required to provide VBA LICENSE before job offer is approved. Seal penetration point with silicone to prevent water ingress into garage. Connect to existing 20mm PEX hot and cold water lines (already installed by previous plumber). Commission system and ensure correct operation. Additional Requirements: Licensed and insured plumber only Provide Compliance Certificate / Gas Safety Certificate suitable for Body Corporate All works to comply with relevant Australian Standards and regulations Please provide: Quote including labour and materials (excluding unit) Date of Installation If site needs to be inspected before commencement of works, I can arrange for this to occur. Thanks, Federico

Very professional, detailed, and pleasant to deal with. Highly recommended.

Plumper Relocate hot water unit

$150

Northcote VIC, Australia

20th Feb 2026

Relocate hot water unit from internal to external. Opposite wall Power disconnected

Mark attended to relocate the hot water unit from internal to external. Mark was professional & so clean. AMAZING to deal with. HIGHLY RECOMMEND

Kitchen mixer install. Hot water isolation valve

$450

Docklands VIC, Australia

9th Feb 2026

hot water isolation valve needs replacing under kitchen sink, no longer functioning. Kitchen mixer tap replacement (supplied)

Got the job done with no issues. Recommend.

Leaking at the hot water pipe connection.

$200

Melbourne VIC 3000, Australia

17th Jan 2026

The hot water pipe connection has cracked and is leaking. It needs to be replaced. As show in the photos.

Fast and efficient job

Hot water unit replacement (+leak fixed)

$1,250

Balaclava VIC, Australia

17th Jan 2026

Replace continuous hot water unit for one bedroom apartment. i need the job done by Monday 19th afternoon . See pictures of unit for details. Also need a very minor leak fixed under sink. Thanks.

Yep he's alright. 👍

Turn on Aquamax Gas Hot Water Unit

$55

Brunswick VIC, Australia

9th Jan 2026

Looking for someone to get an existing Aquamax gas hot water unit up and running. Was working pre-Christmas just hasn’t been turned back on as it was switched off. Current status: • Pilot light is on and working • Water supply is on and running • Power is on and active It should be a quick and straightforward job for someone familiar with these systems — likely just final setup / adjustment. Photos attached for reference. Location: Brunswick Flexible timing. Please comment with experience and availability.

Fantastic. Quick, efficient and super happy.