24/7 emergency0472 657 042
Hills Plumbing & Gas

Hot Water Systems Gold Coast

Cold shower this morning? We repair what we can, replace what we can't. Same-day swap-outs available.

Typical guide prices: electric storage $1,300 to $2,400gas storage $1,800 to $3,200gas continuous flow $1,900 to $3,500heat pump $2,500 to $4,500fixed price in writing before we start. Full Gold Coast price index

No hot water? Three things to check first.

Before you call, try these, solves about a third of "no hot water" complaints:

  • Gas storage units: open the front panel, look at the pilot light. Steady blue flame = good. Out = needs relight (sticker inside the panel explains how; if it won't catch in 2-3 tries, stop and call us, repeated attempts release gas into the cabinet).
  • Electric storage units: check the switchboard for a tripped breaker labelled "HOT WATER". Flick it firmly off then on. If it trips again immediately, you have an electrical fault, stop.
  • Heat pump units: check the controller on the unit for an error code. Note it down before calling, tells us what's wrong before we arrive.

If those don't fix it, ring us. We carry common parts in the van so most repairs are same-visit. If the unit is repairable, our dedicated hot water repairs Gold Coast page covers same-day diagnosis and what we can fix on the spot.

If those checks haven't sorted it, the fault needs proper diagnosis, and that's a quick job for me rather than a guessing game for you. I've put together a dedicated page covering common faults, what's worth fixing, and what repairs cost: same day hot water repairs across the Gold Coast, usually with the part on the van.

Repair or replace? Here's how we decide.

Hot water systems usually last 8-12 years. Our honest decision tree:

  • Under 7 years old, small fault: repair. Cheap, quick, system has years of life left.
  • 7-10 years, repairable fault, system has been serviced: repair if it's a $200-400 part. Replace if it's a $500+ part.
  • 10+ years, tank leaking: always replace. Tank failure means the tank's gone. No repair worth doing.
  • 10+ years, small electrical fault (thermostat, element): grey area. We'll quote both options so you can decide.
  • 15+ years, anything: replace. The other components are at end-of-life too.

We don't push replacements when repair is the right call. If you want a second opinion on a unit we said to replace, get a second quote, we won't be offended.

What we install, gas, electric, heat pump, solar.

Gas storage (Rheem Stellar, Vulcan, Aquamax): traditional tank-and-burner. Reliable, simple, easy to service. Cheaper install, higher running cost than heat pump.

Gas continuous flow (Rinnai Infinity, Rheem Metro): no tank, heats water on demand. Compact, good for tight spots. Best for high peak-demand households.

Electric storage (Rheem, Vulcan, Aquamax): cheapest to install, most expensive to run. We rarely recommend new electric installs in 2026 unless heat pump won't fit.

Heat pump (Sanden, Reclaim, iStore, Rheem Ambiheat): runs like an air-conditioner in reverse, extracts heat from outside air to heat water. About 3-4x more efficient than electric. Federal STCs + QLD incentives make these very attractive right now.

Solar hot water (Solahart, Rheem Loline, Edwards): roof panels heat water directly, gas or electric booster for cloudy days. Highest install cost, lowest running cost. Best ROI if your house is already set up for it.

Which system suits your house, honest take.

What we'd put in your house, based on situation:

  • Most homes, replacing a dead system: heat pump. Take the rebate, save $300+/year. Payback 2-3 years.
  • Large family with peaky demand (5+ showers in a morning): gas continuous flow.
  • Already has solar, replacing booster: upgrade the solar tank, keep gas booster.
  • Investment property, lowest install cost matters most: gas storage or continuous flow.
  • Off-grid acreage: heat pump with adequate solar generation, or LPG storage.
  • Apartment with limited install space: small gas continuous flow inside the cupboard.

Send us a photo of your current setup + the location and we'll tell you straight what we'd install.

What makes a coastal-ready hot water system?

Salt air is the quiet killer of Gold Coast hot water systems, and it is why the same unit lasts years longer in Nerang than it does in Mermaid Beach. A coastal-ready hot water system has a marine-grade or properly coated casing, because standard powder coat pits and rusts within a few seasons of salt spray. It gets its sacrificial anode checked and replaced on schedule, since the anode corrodes faster near the ocean and the tank starts rusting the day it is used up. It sits out of the prevailing salt spray where the site allows, a wall or screen between the unit and the sea breeze makes a measurable difference. And it comes from a brand whose warranty actually holds up near the ocean, some manufacturers reduce cover within a set distance of the coastline, so we check the fine print before we recommend a unit. For the full comparison, see our 2026 coastal buyer's guide.

Heat pump rebates, why the maths is good right now.

Federal STC (Small-scale Technology Certificates) plus QLD-specific incentives can knock $1,000-$2,500 off the upfront cost of a heat pump install in 2026. A heat pump that costs $4,500 supply-and-install becomes $2,500-$3,500 after rebates.

Compared to gas continuous flow at $1,900 to $3,500 with no rebate, the upfront gap often shrinks to a few hundred dollars. Then the heat pump saves you $300+/year in running cost. Payback on the difference is 2-3 years.

We register every install with the manufacturer and submit the rebate paperwork on your behalf. No paperwork on you.

Same-day swap-outs.

If your system is dead and you need a new one in today, we usually can. We carry common units in the van, Rheem and Rinnai gas continuous flow, Vulcan and Rheem gas storage, common electric storage. Worst case it's a next-day install.

For heat pumps we typically schedule out 3-5 days because we don't carry them in the van, too big, and the install needs a concrete pad and electrical work coordinated. If you can survive without hot water for a few days, the heat pump is usually worth the wait.

Annual servicing, worth it?

For gas units (storage or continuous flow): yes. An annual service, quoted on inspection, buys you a clean burn, no carbon monoxide risk, longer unit life and warranty validity. Manufacturers like Rinnai actually require annual servicing to honour the warranty past year 5.

For electric storage: less critical. But replacing the sacrificial anode every 5 years (we do this as a service) doubles the tank's expected life from 8-10 to 15-20 years. Cheap insurance.

For heat pumps: minimal servicing required. We recommend a check at year 5, clean the air filter, verify refrigerant pressure, replace the anode in the tank.

For solar: panels and collectors need an annual rinse-and-inspect. Boosters need normal servicing.

What we don't recommend.

Some things we'll talk you out of:

  • Cheap online heat pumps from unknown brands. We've seen them fail in 18 months and the warranty is unenforceable. Stick with Sanden, Reclaim, iStore or major brand units.
  • Reinstalling an electric storage system when heat pump is an option. The rebate maths is too good in 2026.
  • Cheap solar hot water, install costs are high, cheap brands have a poor track record, payback is too long.
  • Repairing a 12+ year old gas storage unit with multiple faults. You're throwing money at a system that'll fail again soon.

Ready to get a quote?

We'll come out, see the job, and put a fixed price in writing.

Get a quote
FAQs

Common questions

How much does it cost to replace a hot water system on the Gold Coast?+
Supplied and installed, like-for-like: electric storage $1,300 to $2,400, gas storage $1,800 to $3,200, gas continuous flow $1,900 to $3,500, and a heat pump $2,500 to $4,500 after the federal STC rebate is applied on the invoice. Solar hot water is quoted on inspection. Coastal installs sit toward the top of each range because of the salt-rated valves and fittings we fit. You get a fixed price in writing before we start.
Can you replace my hot water system the same day?+
Usually, yes, for gas and electric. We carry common Rheem, Rinnai, Vulcan and Aquamax units in the van, and a like-for-like changeover takes 2 to 4 hours. Heat pumps are typically scheduled 3 to 5 days out because the unit needs a pad and electrical work coordinated, and a fuel switch such as gas storage to heat pump can take one to two days. The most common delay is old pipework and valves that need bringing up to current standards.
Is a heat pump worth it on the Gold Coast?+
For most households of three or more, yes. Installed it runs $2,500 to $4,500 after rebates, and daily running cost is roughly 40 to 60 percent less than gas continuous flow, so the extra upfront cost pays back in about 2 to 4 years and you keep saving for the unit's 10 to 15 year life. Rebates typically take $1,000 to $2,500 off and we apply them at point of sale, no paperwork on you. Small one-person households take longer to recoup it.
Should I repair or replace my hot water system?+
Repair a unit under about 8 years old with a sound tank and a normal wear part gone: element, thermostat, valve, thermocouple. Replace anything over 12, and replace any tank that is leaking from the body, because that is internal corrosion and no part fixes it. In between, the fault decides, and we quote both numbers side by side so you choose. Most tanks we swap out here are 10 to 14 years old, and salt air shortens that.
What size hot water system do I need?+
For storage, 1 to 2 people suit a 125 to 160L tank, 3 to 4 people 250 to 315L, and 5 or more 400L plus. For gas continuous flow, 26L per minute covers 3 to 4 people and 32L per minute covers 5 or more. Heat pumps are sized by tank, and 270 to 315L suits most families. Peak use matters more than headcount, so count the showers that run at the same time in the morning.
Do I need a Form 4 or a compliance certificate for a hot water replacement?+
Yes. Replacing a hot water system, including like-for-like, is notifiable plumbing work in Queensland, so we lodge a QBCC Form 4 after every changeover and you receive a copy. A gas unit also needs a gas compliance certificate, which sits under our separate Queensland gas work licence rather than the QBCC plumbing licence. A tempering valve is required on every new and replacement install, so it goes in with the job.
Questions

Common questions about hot water systems

Straight answers from Jieye, owner & licensed plumber.

Service area

Hot Water Systems across every Gold Coast suburb

Jieye services Coomera through to Tweed Heads and the hinterland. Click your suburb for area-specific notes: common issues, typical jobs, local pricing.

Need hot water systems on the Gold Coast?

Fixed-price quoting, 24/7 emergency, workmanship guarantee.

Call 0472 657 042Get a Quote