Servicing Caloundra to Noosa
Your Sunshine Coast hot water specialists
$0 call-out · Fixed price · 24/7 hot water
Hot water repairs, replacement, installation and servicing for electric, gas, heat pump and continuous flow systems. Your local hot water plumber, with a fixed price before we start and same-day replacement on most systems.
- Same-day replacement on most systems
- $0 call-out fee
- Fixed price quoted before work starts
- QBCC licensed plumber and gasfitter
- Lifetime workmanship warranty
- 16+Years in the industry
- 24/7Answered every day
- $0Call-out fee
- LifetimeWorkmanship warranty
- FamilyOwned and operated
What do you need?
Pick the job. Each page explains the common faults, what we do and what it involves.
Hot water repairs
No hot water, lukewarm water, a dripping relief valve or an error code. Diagnosed on site and fixed at a price agreed first.
See detailsHot water replacement
Like-for-like changeovers, often the same day, or an upgrade to heat pump, solar or gas. Old unit removed and compliance lodged.
See detailsElectric hot water
Storage tanks on continuous or off-peak power. Elements, thermostats and valves repaired, or the tank replaced.
See detailsGas hot water
Gas storage on natural gas or LPG. Pilot, thermocouple and gas valve faults fixed by a licensed gasfitter.
See detailsContinuous flow and instantaneous
Instantaneous gas or electric units that never run out. Error codes diagnosed and units sized to your home.
See detailsHeat pump hot water
The most efficient electric option for coastal climates. Installed, repaired and set up to run on your solar.
See detailsSolar hot water
Roof-mounted and split solar systems. Boosters, valves, pumps and collectors repaired, or the system replaced.
See detailsEmergency hot water
No hot water or a tank leaking now. Fast response, with same-day replacement on most systems.
See details
Recent installs
Real jobs by our team across the Sunshine Coast. Neat pipework, insulated lines, tempering valves and proper relief drains on every install.
Your hot water specialist on the Sunshine Coast
When your hot water fails, you don't want someone who has to order parts and come back next week.
Celsius Hot Water is a QBCC licensed hot water plumber (licence 15556725) providing hot water services across the Sunshine Coast, from Pelican Waters to Noosa. We carry the common parts and keep popular systems ready to fit, so most jobs are done on the first visit.
- A straight answer on repair or replace. When both make sense, you see both prices and we tell you which we'd pick for our own home.
- A fixed price before we start. No hourly rate that grows while we work, no call-out fee and no travel surcharge, wherever you are in our service area.
- Installed for this coast. Systems chosen and placed for salt air, tank water and cold mornings on the range.
- Lifetime workmanship warranty. Our workmanship is guaranteed for life, on top of the manufacturer's warranty. Compliance lodged with the QBCC, warranty registered, old system taken away.
Hot water problem right now?
Check these first. They can save you a call-out.
Electric system?
Check the hot water circuit or safety switch at the switchboard hasn't tripped. If it trips again, leave it off.
Gas system?
Check the gas is on at the meter, or that the LPG bottle isn't empty.
Leaking or burst?
Turn off the cold water valve going into the unit, then turn off its power or gas.
What's wrong with my hot water?
The symptom usually points to the cause, and to whether it's a repair or a replacement.
| Symptom | Likely cause | Usually |
|---|---|---|
| No hot water at all | Tripped circuit, failed element or thermostat (electric). Pilot or ignition fault (gas). Error code (heat pump, continuous flow). | Usually a repair |
| Water only lukewarm | Thermostat set low or failing, one element burnt out, tempering valve out of adjustment. | Usually a repair |
| Relief valve running constantly | Worn valve or mains pressure too high. | Repair, sometimes a pressure limiting valve |
| Water pooling under the tank | Inner tank has corroded through. | Replace |
| Rumbling or popping noises | Sediment in the bottom of the tank. | Service, or replace if the tank is old |
| Rusty or discoloured hot water | Worn anode or a tank starting to corrode. | Anode replacement, or replace if the tank is old |
Want to check a few things yourself first? Our no hot water checklist covers the safe checks for each type of system.
How a job runs
From the first call to hot water at the tap.
Call or request a quote
Call us or fill in the quote form and we'll book a time that suits you. There's no call-out fee and no travel surcharge anywhere on the Sunshine Coast.
We test it, not guess
We check the element, thermostat, valves and tank on site and tell you what's failed in plain English, and whether it's worth fixing.
You approve one price
You see a single fixed price before we lift a spanner. If a repair and a replacement both make sense, we price both.
Hot water back, paperwork done
We check the temperature at your taps, take the old unit away, lodge the QBCC compliance and leave the area clean.
Which system suits your home?
How the five main types compare for a typical Sunshine Coast household.
| System | Running cost | Upfront cost | Typical life | Best for |
|---|---|---|---|---|
| Electric storage | Higher, lower on off-peak | Lowest | 8 to 12 years | Like-for-like swaps and tight budgets |
| Gas storage | Medium | Low to medium | 8 to 12 years | Homes already on gas or LPG |
| Gas continuous flow | Medium | Medium | 15 to 20 years | Families who never want to run out |
| Heat pump | Lowest of the electric options | Medium, reduced by STCs | 10 to 15 years | Most coastal homes, especially with solar panels |
| Solar | Low | Highest, reduced by STCs | 15 to 20 years | Sunny roofs and long-term owners |
Not sure? Read which hot water system is best for a Sunshine Coast home.
Hot water on this coast
Local conditions that change what lasts and what fails.
Salt spray eats outdoor hardware
Living near the surf means relief valves, brass unions and heat pump fins wear out years earlier than the same parts inland. When we replace a beachside system, we think about which side of the house it sits on before we think about the brand.
Summer is hard on electric tanks
Hot, humid months and lightning-heavy weather are tough on elements and thermostats. If your tank is already over ten years old, a failed element in summer is often the moment to compare a repair against a new system.
Rainwater changes the maintenance schedule
Most homes on the range and on acreage run on tank or bore water. That water carries fine sediment that settles in the tank and uses up the anode, so these systems need checking every two to three years, not five.
First-generation heat pumps are ageing out
Many homes in newer estates were built with a heat pump or solar system, and the earliest of those are now past their warranty. A fault isn't always the end, so we test before we quote a replacement.
Every suburb, Caloundra to Noosa
108 suburbs across the Sunshine Coast and Noosa. Find yours for local information, or just call.
Celsius Hot Water: key facts
Everything you need to know at a glance.
- Business
- Celsius Hot Water, a family owned and operated Sunshine Coast hot water business
- Services
- Hot water repairs, replacement, installation and servicing: electric, gas, continuous flow, heat pump and solar
- Service area
- 108 suburbs across the Sunshine Coast and Noosa, from Pelican Waters and Caloundra to Noosa
- Price
- Hot water installs from $1,700, supply and install, fixed price before work starts
- Call-out fee
- None
- Travel charge
- None anywhere in our service area
- Availability
- 24/7, including weekends and public holidays
- Warranty
- Lifetime workmanship warranty, plus the manufacturer's warranty
- Experience
- More than 16 years in the industry
- Licences
- QBCC contractor licence 15556725 (plumbing and drainage; gasfitting); Restricted Electrical Work Licence 1508073 (water heaters)
- Brands
- Rheem, Thermann, Dux, Vulcan, Rinnai, Stiebel Eltron and all major brands
- Phone
- 0422 698 311
Common questions
Straight answers from licensed plumbers.
How much does hot water replacement cost on the Sunshine Coast?
Our hot water installs start from $1,700, supply and install, with a fixed price confirmed before work starts. See our cost guide.
What areas does Celsius Hot Water service?
Celsius Hot Water services the whole Sunshine Coast, from Pelican Waters and Caloundra in the south to Noosa Heads, Tewantin and Cooroy in the north, and inland through the hinterland to Maleny, Montville, Kenilworth and the Glass House Mountains.
What types of hot water systems do you work on?
We repair, replace and install electric storage, gas storage, gas and electric continuous flow, heat pump and solar hot water systems from all the major brands.
Are you available 24/7?
Yes. We answer calls 24 hours a day, 7 days a week, including weekends and public holidays, for no hot water, leaking tanks and other urgent hot water problems.
Can you replace my hot water system today?
In most cases, yes. We keep common electric, gas and heat pump systems available so a failed system can usually be replaced on the day you call.
How long does a hot water system last?
Electric and gas storage tanks typically last 8 to 12 years, heat pumps 10 to 15 years, and gas continuous flow and solar systems around 15 to 20 years. Servicing the relief valve and anode helps a system last longer. See how long hot water systems last.
What is the best hot water system for a Sunshine Coast home?
For most homes a heat pump is the best value over time because the mild climate lets it run efficiently, especially with rooftop solar. Gas continuous flow suits large families on gas, and electric storage is the lowest upfront cost for a straight swap.
Do you charge a call-out fee?
No. There's no call-out fee. We quote a fixed price for the job before any work starts, so the price you agree to is the price you pay.
Are you licensed and insured?
Yes. Celsius Hot Water is a QBCC licensed plumbing business, licence number 15556725, and every installation is lodged with the QBCC as required in Queensland.
Why is hot water stored at 60°C but delivered at 50°C?
Water is stored at 60°C or more to stop Legionella bacteria growing in the tank. A tempering valve then mixes it down to no more than 50°C at bathroom taps, which is the Queensland requirement to reduce the risk of scalding.
Do you charge extra for travel?
No. There's no travel surcharge anywhere in our service area, from Pelican Waters and Caloundra to Noosa and the hinterland, and no call-out fee. The fixed price we quote is the price you pay.
Do you offer a warranty?
Yes. Every installation comes with a lifetime workmanship warranty on our workmanship, on top of the manufacturer's warranty on the system.
Why is my hot water system leaking from the overflow?
A constant drip from the overflow pipe usually means the relief valve is worn or the water pressure is too high. It's normally a repair, not a replacement.
Why is my hot water running cold?
Common causes are a failed element or thermostat, a faulty tempering valve, a heat pump fault, or a continuous flow unit that's too small for the demand.
Last updated 11 November 2026 · Reviewed by a QBCC licensed plumber (licence 15556725)