Hot Water Systems
Repairs and same-day replacement of gas, electric, solar and heat pump hot water systems.
Learn more →Gas Hot Water Repairs & Replacement in Berwick
Storage or continuous flow, pilot light out or unit on its last legs — we get the gas hot water flowing again, usually same day.
If you're on mains gas in the South East, chances are a gas hot water unit runs the showers, the kitchen and the laundry. They're a great, low-cost way to heat water — right up until the morning you turn the tap and it runs cold. Borza Plumbing repairs and replaces both gas storage and continuous flow (instantaneous) units, and we keep the common sizes on hand so you're not left waiting around for hot water.
We look after gas hot water for homes, rentals and small commercial sites across Berwick, Pakenham, Narre Warren, Officer and the wider Casey and Cardinia area. Whatever's gone wrong — a pilot light that won't stay lit, a fault code on the controller, weak flow or a tank that's started weeping — you'll get a clear diagnosis, an honest repair-or-replace call, and a fair price before any work starts.
Storage vs continuous flow
A gas storage unit heats and holds a tank of water, ready to go. It's cheap to replace and rock-solid, but the tank slowly wears and eventually corrodes. A continuous flow unit heats water only as you use it, so you never run out, there's no heat lost from a standing tank, and it mounts neatly on an outside wall. Both run on the same mains gas — the right choice comes down to how many people are in the home and how you use hot water.
What we cover
- No hot water diagnosis — pilot light, thermocouple, gas valve
- Continuous flow fault codes read and repaired
- Same-day swaps of failed gas storage and instantaneous units
- Pilot light won't stay lit — relight, repair or replace
- Leaking gas hot water tanks assessed and replaced
- Right-sizing a new unit for your household
- Tempering valve fitted to code on changeovers
- Rental hot water turned around fast for property managers
Repair or replace?
A cold tap doesn't always mean a new unit. Here's how we weigh it up on site.
| What's happening | Likely fix | Repair or replace? |
|---|---|---|
| Pilot light won't stay lit | Thermocouple or pilot assembly | Usually a repair |
| Fault code on a flow unit | Sensor, igniter or valve | Usually a repair |
| Lukewarm or weak hot water | Thermostat or gas valve | Often a repair |
| Water pooling under the tank | Tank has corroded through | Replace the unit |
| Unit 12+ years old, failing often | Worn beyond economical repair | Replace the unit |
Not sure which side of the line you're on? Ask us for a straight answer — we'll never push a new unit you don't need.
Common gas hot water faults
Pilot light out
A pilot that keeps dropping out usually points to a tired thermocouple or a dirty pilot — a quick, affordable fix if caught early.
Fault code showing
Continuous flow units flash an error on the controller. We read the code, find the cause and get the hot water back on.
Leaking or rusty tank
Rust streaks or water pooling at the base of a storage tank generally means the unit is on its way out and due for a swap.
We service the common Australian brands every plumber works on — Rinnai, Rheem, Dux, Bosch and Aquamax storage and continuous flow units across the South East.
Related services
Electric Hot Water
Electric storage hot water element, thermostat and full-unit replacement.
Learn more →
Heat Pump & Solar Hot Water
Energy-efficient heat pump and solar hot water supply, install and rebates.
Learn more →
Gas Fitting & Appliances
Licensed gas fitting, leak detection and gas appliance installation.
Learn more →No gas to the home? See our electric hot water and heat pump & solar options, or browse all our services.
Gas hot water FAQs
My gas hot water has gone cold — is it the pilot light?
Often, yes. On older storage units a pilot light that keeps going out points to a faulty thermocouple, a dirty pilot assembly or a gas supply problem. On a continuous flow unit a cold run usually shows a fault code on the controller. Either way it is frequently a repair rather than a full replacement — we will diagnose it and tell you straight.
Should I repair my gas hot water unit or replace it?
As a rough guide, a gas storage tank lasts around 8 to 12 years and continuous flow units a fair bit longer. If your unit is well within its years and the fault is a valve, thermocouple or controller, a repair is usually the smart spend. If it is leaking from the tank, badly corroded or past its lifespan, a new unit is the better value. We will give you an honest call either way.
What is the difference between storage and continuous flow gas hot water?
A gas storage system heats and holds water in an insulated tank, ready to use. A continuous flow (instantaneous) unit heats water on demand as it passes through, so you never run out and there is no standing tank to lose heat. Storage is cheap to replace and reliable; continuous flow is compact, wall-mounted and great for busy households.
Can you swap a failed gas hot water unit the same day?
In most cases, yes. Hot water is our specialty and we carry common gas storage and continuous flow sizes, so when a unit cannot be repaired we can usually have you back in hot water the same day you call. Phone 0431 140 988 and we will let you know.
Gas hot water gone cold? Let's get it sorted.
Call Borza Plumbing for gas hot water repairs and same-day storage or continuous flow swaps across Berwick, Pakenham and the South East.