Mr. Clog Plumbing

Gas Heater & Gas Hot Water Servicing Sydney

Gas heater been sitting in the cupboard all summer, or a gas hot water unit that's never been looked at? Our licensed gas fitters give it a safety check, clean it and test it.

No surprise bills: $0 call-out and a fixed price before any work starts.

Our guarantee: 12 months on our workmanship, in writing. What it covers

Gas heaters and gas hot water units burn gas inside your home or right next to it, so they're worth having looked at before something goes wrong. A service by a licensed gas fitter covers a safety check of the appliance and its gas connection, a clean of the parts that collect dust and lint, and a test run to check it lights, burns and shuts down as it should. The connection is tested for leaks. If we find a worn part or a fault, we tell you what it is and give you a fixed price to fix it before doing anything more. We service gas heaters, and gas hot water systems including Rinnai, Rheem, Dux, Thermann, Vulcan and AquaMAX. Natural gas and LPG. 12 months on our workmanship.

  • Licensed gas fitters, licence 347993C
  • Gas heaters serviced
  • Gas hot water storage and continuous flow units
  • Safety check of the appliance and connection
  • Cleaned and test run
  • Gas connection tested for leaks
  • Faults explained, fixed price to repair
  • Natural gas and LPG

Fixed price quoted before we start. $0 call-out fee.

The best time to service a gas heater is before the first cold night, not on it. Heaters that sit unused for months collect dust, and sometimes spiders and lint.

Portable heaters that have been in a cupboard or garage for a few seasons, or came with a house you've just moved into, are worth a check before you plug them into the bayonet.

Manufacturers set a service interval for their appliances. It's in the manual, and it's the best guide for your model.

A yellow or sooty flame, a smell when it's running, a pilot that keeps going out, or a hot water unit that's slow to fire up. Have it checked rather than waiting.

Heaters that plug into a gas bayonet. We check the heater, its hose and plug-in fitting, and the bayonet, and run it to check the flame and safety shut-off.

Heaters fixed in place, many with a flue that takes combustion gases outside. A blocked or damaged flue matters as much as the heater, so we look at both.

Heaters that aren't flued release combustion gases into the room and need the ventilation the manufacturer specifies. Don't block vents to keep the warmth in.

We check the burner, pilot and gas control, the flue, the relief valve and the tank for signs of leaking or rust.

We check the unit lights and heats properly on demand, and that the gas, cold and hot connections are sound.

If a part is worn, such as a relief valve or a pilot component, we tell you and give you a fixed price for the repair. Our hot water repairs page covers the common faults.

Do these in order, and only what you can do safely.

Turn the appliance off if it's safe to. Don't light anything, and don't turn lights, appliances or power points on or off.

If you can reach the meter on your way out, turn the valve a quarter turn so the lever sits across the pipe. If the smell is strong, don't stop to do it.

From outside, call Jemena on 131 909 for natural gas in Sydney, your supplier for LPG, or 000 if anyone is unwell or there's immediate danger. Then call a licensed gas fitter.

How It Works

01

The appliance, its gas connection, and its vents or flue looked over.

02

Dust, lint and debris cleared from the parts that collect it.

03

Lit and run, the flame checked, and the connection tested for leaks.

04

What we found, and a fixed price for anything that needs fixing.

Common Questions

A safety check of the heater, its gas connection and any flue or vents, a clean of the parts that collect dust and lint, and a test run to check the flame and the safety shut-off. The gas connection is tested for leaks.

Follow the service interval in the manufacturer's manual for your model. Before winter is the most practical time, and any heater that has been sitting unused for years should be checked before you use it.

Yes. We service gas storage and continuous flow hot water systems, including Rinnai, Rheem, Dux, Thermann, Vulcan and AquaMAX.

A healthy gas flame is mostly blue. A yellow, lazy or sooty flame can mean the heater isn't burning properly, so stop using it and have it checked by a licensed gas fitter.

We tell you what it is and why it matters, and give you a fixed price to fix it before doing any more work.

We give you a fixed price before we start, with a $0 call-out fee.

from 35 Google reviews
Read them on Google →
We recently used Mr Clog Plumbing for our granny flat in Guildford and couldn't be happier with the service. Everything was handled professionally from start to finish, with great communication and workmanship…
George A.Guildford · October 2026
Absolute legend. Turned up on time, sorted the problem quickly and didn’t charge a fortune. Super easy to deal with and cleaned up after the job too. Will definitely be using him again and would happily recomme…
Samantha M.May 2026
Turned up on time and honest service, couldn’t ask for much more.
Danny D.May 2026

See all reviews

Prefer not to call? Send a few details and we’ll come back to you with an upfront fixed price.

How urgent is it?

In a hurry? Call (02) 9139 8945 — we answer 24/7.

Call now for fast, reliable service — $0 call-out fee, available 24/7.

Call (02) 9139 8945Text