Hot Water System Replacement Logan — Same-Day Install
No hot water this morning? We're a Logan-local, QBCC-licensed plumber and gas fitter. Rheem, Rinnai, Thermann and Dux carried on the vehicle — most replacements are hot and running the same day.
When it's time to replace, not repair
Once a Logan hot water system passes the 10-year mark and the invoices start to add up, replacement is almost always the smarter call. A new unit uses less energy, comes with a fresh manufacturer's warranty, and eliminates the risk of a tank splitting overnight and flooding your laundry.
We install every major brand and system type — electric storage, gas storage, continuous-flow gas, heat pump and solar-electric boost. We're not tied to a manufacturer, so the recommendation you get is the one that suits your household size, energy setup and budget.
Which hot water system suits Logan homes?
Electric Storage
$1,600–$2,400 installed
Best for: Cheapest to install. Works anywhere. Great with off-peak.
Watch out: Higher running cost, slower recovery.
Gas Storage
$2,200–$3,200 installed
Best for: Fast recovery, reliable, cheaper to run than electric.
Watch out: Needs gas connection, small standing loss.
Continuous Flow Gas
$2,600–$3,800 installed
Best for: Endless hot water, low running cost, compact.
Watch out: Sensitive to low flow taps, requires gas.
Heat Pump
$4,500–$5,500 installed
Best for: Lowest running cost. Rebate-eligible. Quiet electric.
Watch out: Highest upfront, needs airflow clearance.
What size hot water system do you need?
| Household size | Electric / Gas Storage | Continuous Flow | Heat Pump |
|---|---|---|---|
| 1–2 people | 125–160 L | 16 L/min | 160 L |
| 3–4 people | 250–315 L | 20–22 L/min | 250 L |
| 5+ people | 315–400 L | 26–32 L/min | 315 L |
Our Logan hot water replacement process
- 1. Call or request a quote online. A licensed plumber picks up — usually within a couple of rings.
- 2. On-site inspection (same day in most cases). We check size, fuel type, location, compliance items (tempering valve, tundish, safe tray).
- 3. Firm fixed-price quote. Every cost is on the sheet — unit, install, removal, disposal, compliance. Nothing added later.
- 4. Supply and install. We drain, disconnect, remove, install, commission and test. Typically 2–4 hours on-site.
- 5. QBCC Form 4 compliance certificate issued the same day, plus a walkthrough on how to use the new unit and warranty registration.
- 6. 12-month workmanship warranty on top of the manufacturer's warranty.
Brands we supply & install
Signs your Logan hot water system needs replacing
- Rust-coloured hot water at the tap
- Water pooling at the base of the tank
- Rumbling, banging or knocking noises
- Running out of hot water faster than it used to
- Hot water dropping cold mid-shower
- The unit is over 10 years old
- Rising electricity or gas bills with no other change
- Visible corrosion around fittings or the pressure valve
Hot Water Replacement Logan — FAQ
How much does hot water system replacement cost in Logan?
Fully installed, expect $1,600–$2,400 for an electric storage unit, $2,200–$3,200 for gas storage, $2,600–$3,800 for a continuous-flow (instantaneous) gas system, and $4,500–$5,500 for a heat pump. Prices include removal of the old unit, tempering valve upgrade if required by code, and QBCC compliance certificate.
Can you replace a hot water system same-day in Logan?
In most cases yes. We carry Rheem, Rinnai, Thermann and Dux units on the vehicle. If you call before midday and it's a like-for-like swap, the new unit is usually running by dinner.
Should I replace like-for-like or switch types?
It depends on your home. Gas continuous-flow is the most economical to run for larger families with existing gas. Electric storage is cheapest to install if you already have off-peak. Heat pumps are the lowest running cost but the highest upfront and need clearance for airflow. We give a straight recommendation, not an upsell.
How long does a hot water system last in Logan?
Electric storage units in Brisbane/Logan typically last 8–12 years. Gas storage lasts 10–15. Continuous-flow gas can go 15–20 years. Heat pumps are still relatively new — expect 10–15 years with servicing. Logan water is fairly kind to anodes, so systems here often outlast the coastal average.
Do I need a licensed plumber to replace a hot water system?
Yes — in Queensland, all hot water installation is licensed plumbing work. Any gas system also requires a licensed gas fitter. VM Plumbing & Gas holds both licences and provides a QBCC Form 4 compliance certificate on every install.
What signs mean my hot water system needs replacing (not repairing)?
Rusty or discoloured hot water, water pooling around the base of the tank, rumbling or banging noises, water dropping cold mid-shower, or a unit older than 10 years with rising energy bills. If you see any of these, a replacement is almost always cheaper long-term than another repair.
Do you handle rebates?
Yes. Federal STC rebates for heat pump and solar systems are deducted upfront from our quoted price, so you never pay the full sticker cost. We handle the paperwork.
No hot water? Get it replaced today.
Same-day install across Logan in most cases. Firm quote before we start.