Sandton Emergency Plumbing
Geyser Repair
Cold shower this morning? Hot water by tonight.
Call 010 500 1849A geyser gives warning before it fails. Water that runs lukewarm, a tripping earth leakage, banging or kettling sounds from the roof, or a steady drip from the overflow pipe outside are all the system telling you something has gone wrong. Attended to early, most of these are inexpensive repairs.
Ignored, they become a 150-litre tank emptying itself through your ceiling. We repair elements, thermostats, safety and pressure control valves, drip trays, vacuum breakers and thermal insulation, and we do it to SANS 10254 standards so your installation stays compliant and insurable. If yours has already burst, our emergency team is on call.
Same-day hot water
Vehicles carry elements, thermostats and valves for the common geyser brands, so most repairs finish on the first visit.
SANS 10254 compliant
Every repair leaves the installation compliant, including the safety valve, vacuum breakers and drip tray arrangement.
Honest repair-or-replace advice
If the cylinder itself has gone, we tell you rather than sell you an element that will not solve anything.
Full system check
Every call includes a check of pressure, valves and insulation so we catch the next fault before it happens.
How geyser repair actually works
The element and thermostat are the two components most likely to fail, and in hard-water areas element life is shortened considerably by scale. A failed element gives you no hot water at all; a failed thermostat typically gives you water that is either lukewarm or dangerously hot. Both are same-day repairs on most standard cylinders.
Leaks from the overflow pipe are different and often misdiagnosed. A steady drip during heating is normal expansion relief. A constant flow means the pressure control valve has failed or your incoming pressure is too high for the valve rating — and running a geyser on excessive pressure will eventually rupture the cylinder. That is a water pressure problem as much as a geyser one.
Where the cylinder has corroded internally and is weeping at the seam, no repair is legitimate. At that point we quote a geyser installation and discuss whether a like-for-like electric replacement, a heat pump or a solar-ready cylinder makes the most sense for your household and your electricity bill.
Common issues we see
- No hot water at all after an earth leakage trip
- Water only lukewarm regardless of thermostat setting
- Continuous water discharge from the overflow pipe
- Banging, popping or kettling noises from the roof
- Water staining on the ceiling below the geyser
- Rusty or discoloured hot water
- Hot water running out far faster than it used to
When to call us immediately
- Your earth leakage trips whenever the geyser heats
- The overflow is running continuously rather than dripping
- You can see moisture in the drip tray or on the ceiling
- Hot water has become inconsistent between taps
- Your geyser is over eight years old and behaving unusually
Our process
What happens after you call
- 1
Electrical and pressure test
We test the element, thermostat and isolator, and measure incoming pressure before touching anything.
- 2
Diagnose the true fault
Symptoms overlap, so we confirm the failed component rather than replacing parts speculatively.
- 3
Repair and recommission
The faulty part is replaced, the system is refilled, bled and brought back up to temperature under supervision.
- 4
Compliance check
Safety valve, vacuum breakers, drip tray and overflow are verified against SANS 10254 before we sign off.
Frequently asked questions
How long does a geyser repair take?
An element or thermostat replacement typically takes one to two hours, plus roughly an hour for the tank to reheat afterwards.
How long should a geyser last?
Eight to twelve years is typical in Gauteng. High pressure, scale and a missing or failed vacuum breaker all shorten that considerably.
Why does my geyser trip the earth leakage?
Almost always a failed element allowing current to leak to earth. It is a straightforward replacement but should not be left, since the geyser is unusable in the meantime.
Is a dripping overflow pipe normal?
A small drip while heating is normal. A continuous stream is not, and usually points to a failed pressure control valve or excessive incoming pressure.
Will my insurance replace a burst geyser?
Most household policies cover geyser bursts and consequential water damage. We issue the report and compliance certificate insurers require.
Related services
Geyser Installation
Compliant replacement and new installation of electric, solar-ready and heat pump systems.
Emergency Plumber
A licensed plumber dispatched to your door in as little as 20 minutes, day or night.
Water Pressure Problems
Diagnosis and correction of low pressure, excessive pressure and water hammer.
Where we deliver this service
Sandton Emergency Plumbing
Africa's busiest business district, plumbed and protected around the clock.
Midrand Emergency Plumbing
The fastest-growing corridor in Gauteng, served by plumbers who live in it.
Randburg Emergency Plumbing
Established Johannesburg suburbs, ageing pipework, and plumbers who know both.
Centurion Emergency Plumbing
From Irene's smallholdings to Highveld's office parks, covered around the clock.
Need geyser repair today?
We answer every call in person, 24 hours a day, 7 days a week — including public holidays. Emergency plumber dispatched in as little as 20 minutes.