Hot Water System Repairs Melbourne
When your hot water system fails, you need a local technician you can trust. Our fully licensed plumbers provide same-day hot water repairs, servicing and installation across Melbourne. We repair and maintain gas, electric, solar and heat pump hot water systems from all major brands. Call 1300 93 55 88 for same‑day hot water repairs across Melbourne.
Need this service? Call 1300 93 55 88
Our licensed technicians are available 24/7 across all Melbourne suburbs.
Types of hot water systems we repair
- Gas storage hot water systems – repairs to burners, thermostats, pilot lights, valves and gas connections.
- Gas continuous flow (instant) hot water – diagnosis and repairs for instant gas water heaters that provide endless hot water.
- Electric storage hot water systems – elements, thermostats, sacrificial anodes and temperature pressure relief valves.
- Solar hot water systems – solar collectors, circulating pumps, storage tanks and backup boosters.
- Heat pump hot water systems – repairs and servicing of energy efficient heat pump water heaters.
- Hot water boilers and hydronic boilers – for commercial and hydronic heating applications.
Common hot water problems we fix
- No hot water or water only warm/cold.
- Pilot light won’t stay lit.
- Gas burner not igniting or cutting out.
- Rusty or discoloured water.
- Low hot water pressure.
- Fluctuating water temperature.
- Strange noises or banging from the tank.
- Hot water running out too quickly.
- Error codes on digital controls.
Hot water system service & maintenance
Regular servicing keeps your hot water system running efficiently and prolongs its life. Our comprehensive service includes flushing sediment, checking gas and water connections, testing safety valves, inspecting thermostats and elements, replacing sacrificial anodes and cleaning filters. We recommend annual servicing for gas hot water systems and every two years for electric and heat pump systems. Solar hot water collectors should be inspected annually to ensure optimum performance.
Brands we service
We work with all leading hot water system brands, including Rinnai, Rheem, Dux, Bosch, Vulcan, AquaMAX, Thermann, Everhot, Apricus, Solahart, Edwards, Chromagen, and Sanden. Whether you need a warranty repair or want to upgrade to a more efficient unit, our plumbers can advise on the best solution for your home or business.
Same day service & 24/7 emergency hot water repairs
We know how disruptive it is to be without hot water. That’s why our plumbers are available 24 hours a day, 7 days a week for emergency hot water repairs. We service the entire Melbourne metropolitan area and carry a range of spare parts to complete most repairs immediately. If your system can’t be fixed on site, we can supply and install a replacement unit with minimal downtime.
Why choose KM Heating & Cooling Plumbers?
- Licensed plumbers and gas fitters – fully qualified to work on gas, electric, solar and heat pump hot water systems.
- All hot water systems – we repair, service and install every type and brand of hot water heater.
- Same day service – fast response to restore your hot water as quickly as possible.
- Transparent pricing – fixed quotes with no hidden charges.
- Quality workmanship – we use genuine parts and follow manufacturer specifications.
- Melbourne locals – over 20 years servicing Melbourne homes and businesses.
- Customer satisfaction guaranteed – we prioritise your comfort and safety.
Melbourne suburbs we service
Our hot water plumbers operate throughout Melbourne, including CBD, Carlton, Northcote, Fitzroy, Collingwood, Richmond, South Yarra, St Kilda, Elwood, Prahran, Toorak, Hawthorn, Camberwell, Balwyn, Kew, Kensington, Flemington, Moonee Ponds, Essendon, Coburg, Ivanhoe, Preston, Port Melbourne, Albert Park, Southbank, Docklands and all surrounding suburbs. If you’re unsure whether we service your area, simply call us.
Frequently Asked Questions
What should I do if my hot water system stops working?
Turn off the power or gas supply to the system, switch off the water supply if there’s a leak, and call our plumbers. Do not attempt to repair a gas or electric water heater yourself.
How often should a hot water system be serviced?
Gas hot water systems should be serviced every 12 months and electric or heat pump systems every two years. Regular maintenance prevents breakdowns and ensures efficiency.
Can you repair my hot water system on the same day?
Yes. We offer same day repairs across Melbourne and carry common spare parts in our vans. If the unit is beyond repair, we can supply and install a replacement unit quickly.
Should I replace or repair my old hot water system?
If your hot water system is more than 8–10 years old, frequently breaks down or is expensive to run, we may recommend upgrading to a new, energy efficient model to save on running costs. Our plumbers will provide honest advice.
Do you install new hot water systems?
Absolutely. We supply and install gas, electric, solar and heat pump hot water systems, including continuous flow and storage models. We’ll help you choose the right size and type for your needs.
Are your plumbers licensed?
Yes. All KM Heating & Cooling Plumbers are fully licensed, insured and trained to comply with Victorian plumbing and gas safety regulations.

