Hot Water System Replacement and New Installations
Gas and electric, storage and continuous flow. Supplied and installed, or we fit the unit you have bought. Old system removed, upfront price before we start.
- Licensed and Insured
- 24/7 Emergency Service
- Lifetime Workmanship Guarantee
- Seniors Discounts
The problem, in plain English
Replacing a hot water system is one of those purchases nobody plans for. The old one fails, and suddenly you are making a decision about a piece of equipment you will live with for the next decade, usually in a hurry and usually with a cold shower already behind you.
The choices are not obvious either. Gas or electric, storage or continuous flow, what size, which brand, and whether the quote you have been given is fair. Most people have no way to sanity check any of it, which is exactly why the first quote often feels uncomfortably high.
There is a sizing trap on top of that. Too small and you run out of hot water every evening. Too large and you pay for the unit and then keep paying to heat water nobody uses. Getting it wrong is expensive in both directions and you do not find out for weeks.
How DK Plumbing fixes it
DK Plumbing supplies and installs gas and electric hot water systems, storage and continuous flow, across the Redlands and Brisbane bayside. We hold a plumbing licence, a drainage licence and Gas Licence L91032, so both the water and the gas side of a changeover are done by the same person on the same day.
We size the system to how your household actually uses hot water rather than to a chart, and we are straight about the trade offs between gas, electric, storage and continuous flow for your specific property. If there is no gas at the place, we will say what going gas would really involve.
You are welcome to buy your own unit and have us install it. Either way the old system is removed and disposed of, the new one is installed to current standards, and you get an upfront price before we start and the compliance paperwork on the day.
Storage or continuous flow, gas or electric
Storage systems heat a tank and hold it ready, which is simple and reliable, but the tank is a finite amount of hot water and it is a fixed size once installed. Continuous flow heats on demand, so it does not run out and takes up far less room, but it needs adequate gas supply and the flow rate matters. Electric storage suits properties with no gas connection and can run on a cheaper controlled load tariff, at the cost of slower recovery. Gas recovers faster and is usually cheaper to run where gas is already connected. There is no single right answer, which is why we ask about your household before recommending rather than after.
What a replacement actually involves
We isolate and drain the old unit, disconnect it, and remove it from site. On gas systems the existing line is checked and, where the new unit differs, resized or extended, then capped and pressure tested as required. The new system is set level and secure, connected with new isolation valves and a compliant relief line, and where the installation needs one, a tempering valve is fitted so the delivered temperature is safe. Then it is filled, purged, tested and checked for leaks before we leave. The compliance paperwork is handed over on the day, which is what your insurer and the manufacturer warranty both rely on.
Why act now
- Old unit on the way out? Get a price from us before you commit to the first quote.
- We size the system to how your household uses hot water, not to a chart.
- Happy to install a unit you have already bought, or supply and install the lot.
- Old system removed and disposed of, compliance paperwork on the day.
Common questions
What size hot water system do I need?
It comes down to how many people are in the house and when they use hot water, not just bedroom count. A household that showers back to back in the morning needs more storage than the same number of people spread across the day. We size it on how you actually live rather than a chart, and we would rather ask a few questions than sell you a bigger unit than you need.
Can I supply my own unit and have you install it?
Yes, and plenty of people do. We are happy to install a unit you have bought. We will tell you before we start if what you have bought is a poor fit for the space or the connections, because that is better said beforehand than discovered halfway through.
Do you take the old system away?
Yes. The old unit is disconnected, drained, removed and disposed of as part of the job. On a gas unit the line is capped and tested properly, which is licensed work in its own right.
Should I switch from electric to gas, or the other way?
It depends on what is already at the property. If there is no gas connection, going gas means a new line and possibly a meter, which changes the maths considerably. If gas is already there, a continuous flow unit is worth considering because it does not run out. We will give you the honest comparison for your place rather than a general rule.
How long does a replacement take?
A like for like swap in the same position is usually a few hours. Moving the unit, changing between gas and electric, or upgrading to a larger size that needs different connections takes longer. We tell you which yours is when we quote rather than on the day.
Why locals call Dave
Four reasons this call goes better than the last one
Plumbing and gas, one licence
Most plumbers can't legally touch gas lines. Dave holds both licences (QBCC 53736, Gas L91032), so one visit covers the lot. No waiting around for a second tradesman.
Upfront price, in writing
You hear the price before we start, not after. We assess the job and give you a fixed quote. You decide before any work begins — zero hidden costs on the invoice.
Workmanship guaranteed
Fully licensed and insured. When we finish a job we clean up the site, and we guarantee the workmanship. It works when we leave, or we come back and fix it.
Seniors discount available
We look after our local bayside community. If you're a senior, just mention it on the call and we'll apply a discount.
What local homeowners say
4.979 Google reviews"Amazing, fast service and a quarter of the price of first quote!"
"Dave is always punctual and his work first rate. He always lets you know what the problem is and how much the job will be with no hidden costs involved. I have no problem reccomending DK Plumbing for any work that you may need to be done at home or at your business, you will not be disappointed."
Free call back
Get a call back from Dave
Tell us what's going on. Dave or the team will call you back — usually within the hour — with an honest next step and an upfront price.
Your details stay with DK Plumbing. Urgent? Call 0409 364 858.
Need a plumber now?
24/7 emergency service across the Redlands and Brisbane bayside.
Call 0409 364 858