Leaking Hot Water Systems · Brisbane & SEQ

Leaking Hot Water System Repairs in Brisbane

A leaking hot water system can cause water damage and may point to a failing tank. We find the source quickly and tell you plainly what it needs, 24/7 across South East Queensland.

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4.8
Top Rated Service
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Hot water systems ready for installation
24/7 EmergencyResponse, any day
Fully Licensed& insured · QBCC
Upfront PricingFixed price first
Workmanship100% guarantee
1-Hour ResponseWhere available
Finance for homeownersSubject to approval

The short answer

Leaking Hot Water Explained

A leaking hot water system can leak from the tank, a pipe fitting or the temperature and pressure relief valve. The Plumbing Gang’s licensed Brisbane plumbers identify the source, repair fittings and valves where possible, and replace the system if the tank has failed. Never cap or block a relief valve, as it is a safety device.

What's included

Need a plumber today?

Available 24/7 across Brisbane and South East Queensland. Urgent jobs are reached within 60 minutes where available, with fixed-price options before any work starts.

The Plumbing Gang explains
Why hot water systems leak
The Plumbing Gang

Leaking hot water system?

Hot water leaks & replacements · Brisbane & SEQ

1300 671 525Book a plumber

Water under the tank?

Where the leak is tells the story

A drip from a valve or fitting can usually be repaired. A leak from the tank itself usually means it has rusted through from the inside, and the only real fix is a replacement. Either way, it’s worth acting quickly before water damages floors or walls.

Turn off the cold water to the system and, for electric units, the power at the switchboard, then call us. We’ll tell you whether it’s a repair or a replacement.

Know the signs

Common Signs to Watch For

Same day service

Fast Help, Fixed Prices

Urgent jobs are reached within 60 minutes where available, or book a time that suits you. You get fixed-price options before any work starts.

How we take care of you

From Your First Call to the Final Clean-Up

Same-day service, a 60-minute response for urgent jobs where available, and fixed prices before any work starts.

01

Call or book online

Talk to a real person 24/7 about your hot water problem.

02

Quick triage

We check the type and age of your system so the plumber brings the right parts.

03

Same-day visit

Urgent no-hot-water jobs reached within 60 minutes where available.

04

Diagnose properly

We test the element, thermostat, valves and tank before recommending anything.

05

Repair or replace?

An honest recommendation. If a repair makes sense, we’ll say so.

06

Fixed-price options

Choose from fixed-price options. Finance pre-qualification may be available.

07

Installed same day

Most replacements are installed and running the same day.

08

Form 4 lodged

We lodge the QBCC Form 4 and issue a gas compliance certificate for gas systems.

09

Clean-up & handover

We remove the old system, clean up and show you how your new one works.

10

Ongoing care

A maintenance sticker and an optional service visit to keep it running for longer.

Case study

Case Study: Leaking Hot Water System Replaced Same Day in Hendra

A Hendra homeowner found their hot water system leaking from the bottom. We replaced it with a new stainless steel unit the same afternoon.

Every job started with fixed-price options, approved before any work began.

Plumber servicing a heat pump hot water system

Done right, on paper too

Licensed, Compliant and Accountable

QBCC Form 4

Replacing a water heater is notifiable work. We register it with the QBCC within 10 business days and give you a copy.

Safe temperatures

Tempering valves keep hot water at bathroom fixtures to a safe maximum of 50°C, as required under Australian plumbing standards.

Gas compliance certificate

Gas hot water installations come with a gas compliance certificate, issued on completion.

Licensed & accredited

QBCC licensed plumbers and gasfitters, and a member of Master Plumbers Queensland.

Watch

11 Reasons to Choose The Plumbing Gang

Customer reviews

Rated 4.8 by Brisbane Homeowners

ExcellentGoogle star 1Google star 2Google star 3Google star 4Google star 54.81521 reviews
4.8Google star 1Google star 2Google star 3Google star 4Google star 5
Excellent1521 reviews
Posted on Google Google
Emily Durban profile picture
Emily Durban
20 October 2026
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Reagan came out to our property today to assist with a gas tank leakage. He was super detailed and thorough with his work, going above and beyond to ensure we were sorted and happy with the service. He displayed patience when explaining what he was doing step by step and offered fantastic education around what he was doing and potential hazards to watch out for. Great worker to have under your wing plumbing gang! Definitely recommend their service for anyone out there looking for a trusted and reliable company.
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amelia westfield profile picture
amelia westfield
19 October 2026
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Great service and lovely Crew - Reagan came out to look at some stuff for us and was fantastic. Highly recommend
Posted on Google Google
Ash H profile picture
Ash H
18 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Really happy with the service from The Plumbing Gang. Friendly team, great communication and quality workmanship. Would definitely use them again!
Posted on Google Google
beathan whitworth profile picture
beathan whitworth
10 October 2026
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Definitely recommend
Posted on Google Google
jini han profile picture
jini han
9 October 2026
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Highly recommend really saved the day with an emergency repair thanks for all your help guys
Posted on Google Google
Josiah C profile picture
Josiah C
9 October 2026
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Awesome service, thanks heaps guys
Posted on Google Google
Matt Forrest profile picture
Matt Forrest
9 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Really good service would recommend
Posted on Google Google
Jess Marmin profile picture
Jess Marmin
9 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Great service by The Plumbing Gang! Same day service to fix a blocked toilet and Ben did a fantastic job and was lovely to speak to! Very thorough and transparent the entire process which was greatly appreciated. Thanks Ben! Would absolutely recommend
Posted on Google Google
Richard Tinsley profile picture
Richard Tinsley
8 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Super solid work and extremely friendly crew.
Posted on Google Google
FaEpe Feao profile picture
FaEpe Feao
3 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Had a leaking shower had the plumbing gang come out Josh was fantastic and fixed our problem quickly and affordable, highly recommend.
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Finance options

Finance for Homeowners.

Don’t put off urgent plumbing because of the cost. Prequalify for finance in 6 steps, then choose your fixed-price option with confidence.

1

Tap "Prequalify"

Fill in our short form or ask our team on the phone.

2

Fill in a short form

Your name, email, mobile and the work you need.

3

No credit score impact

Pre-qualification is a soft check, so it won’t affect your credit score.

4

We send your prequalify link

Our team calls, then texts and emails your prequalify link.

5

Choose your fixed price

Pick the quote option that suits you. Same price whether you pay upfront or with finance.

6

We book your licensed plumber

Once our finance partner lets us know you’re prequalified, we book in and get the job done.

Finance provided by a licensed third-party lender, subject to eligibility and credit approval. Fees and charges may apply. The Plumbing Gang is not the lender. Prequalification is not a final approval.

From our plumbers

Plumbing Tips & Advice

Gas hot water unit and pipework on an exterior wall

Plumbing tips

Why Is My Hot Water Relief Valve Leaking?

A small drip can be normal, but a constant flow is not. Learn the common causes of a leaking hot water relief valve and why it must never be capped.

Plumber testing a hot water system outside

Plumbing tips

7 Signs Your Hot Water System Is About to Fail

Rusty water, leaks, strange noises and lukewarm showers can all point to a failing hot water system. Here are seven warning signs to watch for.

Newly installed hot water system

Plumbing tips

Heat Pump vs Electric vs Gas Hot Water: Which Is Right for Your Home?

Compare heat pump, electric storage and gas hot water systems, including running costs in general terms, suitability and what to check before you buy.

Preview of The Plumbing Gang hot water flyer
Free download

Download Our Hot Water Flyer

Our hot water services, warning signs and the systems we repair and replace, on one page. Print it or keep it handy.

PDF · 1 page · A4

FAQs

Leaking Hot Water FAQs

Leaks usually come from the tank, a fitting or connection, or the relief valve. A plumber can tell which by inspecting the unit, and the source decides whether repair or replacement is needed.

Some dripping can occur as water heats and expands, but constant or heavy flow needs checking. Never cap, plug or block a relief valve, as it protects the system from dangerous pressure.

Generally, no. If water is leaking from the tank itself, replacement is usually the practical solution. We will confirm this before recommending it.

Turn off the water supply to the system and switch off the power or gas if it is safe to do so. Keep the area clear and call 1300 671 525.

Yes. Fixed-price options are available before any work starts. Finance may be available via our finance partner, subject to approval.

What we do

Related Services

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Hot Water Replacement

Same-day replacement of failed systems, sized to suit your household.

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Hot Water Repairs

Elements, thermostats, valves and leaks fixed properly.

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Gas Hot Water

Gas storage and continuous-flow systems installed and serviced.

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Heat Pump Hot Water

Efficient heat pump systems, including gas to electric changeovers.

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Valves & Pressure

Tempering, pressure limiting and expansion valves fitted to protect your system.

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All hot water services

Browse the full range of hot water services from our licensed team.

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