Gas Geyser Installation in Cape Town
Near-instant hot water, no tank to fail
T‑Rex Plumbing installs and repairs gas geysers across Cape Town from our Southern Suburbs base. Every installation is signed off and certified, and you deal with us from quote to invoice.
Why Choose a Gas Geyser
A gas geyser heats water on demand instead of storing it in a tank, which means near-instant hot water and no waiting for a tank to reheat. It needs a gas supply and safe ventilation, which is why installation has to be done by a certified installer.
See our full comparison of electric, solar, heat pump, and gas geysers on the Geyser Repairs page.
Certified Gas Installation and Compliance
Gas installation carries real safety risk if done incorrectly, so it requires a certified installer and a compliance certificate, not a DIY job or an uncertified fitter.
Every gas geyser we install is signed off by a registered gas installer and comes with its gas certificate. You have one point of contact from the first visit to the final invoice.
Our Core Gas Geyser Services
New Gas Geyser Installation
Supply and fit, with the installation signed off and certified.
Gas Geyser Repairs
We come out, assess the problem and give you a written quote before any work starts.
Gas Geyser Certificates
Every installation is signed off by a registered gas installer and certificated.
Gas vs. Electric Geyser Running Costs
Gas heats water on demand rather than keeping a tank hot, which avoids the standing heat loss of a tank-based electric geyser, and it keeps working during power cuts. The trade-off is that gas can run out or be in short supply.
For most houses we recommend a heat pump: it costs less to run, is cheaper than solar, and if it ever has a problem the geyser's element can take over. Gas is the better fit where electricity is unreliable.
What It Costs, and What Moves the Number
A gas geyser installation usually costs around R13,000, depending on the system. Repairs are quoted after we've assessed the problem, and every quote is in writing.
How the Job Runs
We've kept the process simple on purpose.
- Call, Text, or WhatsApp: Tell us about your setup and we'll find a time to come take a look.
- We Assess Your Setup: We check your gas supply and ventilation before quoting.
- We Give You a Quote: You'll know what the job involves before we start any work.
- We Install, Certify, and Test: We make sure everything works and is properly certified before we leave.
Get a Price on Gas Geyser Installation
Fair pricing and a clear quote before any work starts. Tell us what's going on and we'll take it from there.
Get a Quote
Areas in Cape Town We Cover
Areas we cover: Claremont, Rondebosch, Kenilworth, Bishop's Court, and Wynberg in the Southern Suburbs, our home base, plus Hout Bay, City Bowl, and the Waterfront.
What Our Cape Town Customers Say
Geyser repair
Excellent service! My geyser was pulling around 24 units of electricity a day and he came out and diagnosed and fixed the issue. He spent over two hours here making sure everything was sorted. Very professional, knowledgeable, and genuinely lovely to deal with. I really appreciated the time and care he took to get everything right. Highly recommend!!
Phumla NinelaGoogle reviewHeat pump installation
Trex Plumbing did an excellent job installing our heat pump. The team was professional, punctual, and their workmanship was of a very high standard. The installation was neat, efficient, and everything was explained clearly. We are extremely happy with the service and would highly recommend Trex Plumbing to anyone looking for reliable plumbing and heat pump installation. Thank you for a great job!
Leon E AdendorffGoogle reviewSaturday call-out
The most incredible service from Trevor. I contacted him on Saturday morning and he was at our property shortly thereafter. Professional, extremely reasonably priced and exceptionally helpful. I cannot recommend him more
Kelly DillonGoogle review
Frequently Asked Questions About Gas Geyser Installation in Cape Town
Yes, gas installations require a Certificate of Compliance from a registered gas installer. Every gas geyser we install is signed off by a registered gas installer and certificated before we hand it over.
Usually around R13,000, depending on the system. You get a written quote before any work starts.
Gas geysers give near-instant hot water and don't rely on a tank, but need a gas supply and safe ventilation. Gas works without electricity, which helps during power cuts, but the gas can run out or be in short supply. For most houses we recommend a heat pump, which keeps the geyser's element as a backup; gas makes most sense where electricity isn't reliable.
Yes - incorrect gas installation is a genuine safety risk, which is why it requires a certified installer and a compliance certificate, not a DIY job.
The plumbing and gas work together take about 10 to 15 hours, usually spread over two days.