Fixing a Leaking Water Heater in Ghana

You walk into the bathroom and find a puddle under the water heater, or a drip running down the wall behind it. A leaking heater is one of those problems that sits in an awkward middle ground — it is rarely a flood-the-house emergency, but it is never something to leave, because a heater holds pressurised hot water next to electrical parts, and a slow leak today can become a failed tank tomorrow. The useful question is not “is it leaking?” but “where is it leaking from?” — because that decides whether this is a small repair or a replacement.

First — Make It Safe

Before you investigate anything:

1. Switch off the power to the heater at the consumer unit or its isolator switch. A leaking electric heater plus live wiring is the genuinely dangerous combination.
2. Turn off the water supply to the heater — usually a valve on the cold inlet pipe feeding it.
3. Do not keep using it. Running a leaking heater wastes water and worsens whatever is failing.

Once it is off and isolated, you can look without risk.

Find Where the Leak Is Coming From

This is the part that decides everything. Wipe the unit dry, lay tissue under the suspect points, and watch where the water reappears.

From a Fitting or Connection — Often a Cheap Fix

If the water is coming from a pipe joint, the cold inlet, the hot outlet, or a loose connection, it is frequently a worn washer, a loose nut, or a fitting that needs re-sealing. This is the good outcome — a targeted repair, not a new heater.

From the Pressure-Relief Valve — A Real and Important Cause

Storage heaters have a temperature-and-pressure relief valve that releases water if pressure climbs too high. If it drips, it may simply be doing its job (relieving excess pressure), or the valve itself may be faulty, or the heater may be running too hot. This valve is a safety device — never plug or cap it. It should be diagnosed, not silenced.

From the Body of the Tank Itself — The Tank Is Finished

If water is weeping from the seam or the base of the tank itself, the inner cylinder has corroded through. There is no patch for this — a tank that has rusted through is replaced, not repaired. Continuing to use it risks a sudden larger failure.

From the Element or Thermostat Housing

A leak around the heating element gasket or thermostat port can sometimes be resealed or the gasket replaced, depending on the corrosion around it.

Why Heaters Fail Faster in Ghana

Two local factors shorten heater life here. Sediment in the water supply settles in the tank base and accelerates corrosion, which is why periodic draining and servicing matters. And power instability — surges and irregular supply — is hard on elements and thermostats. A heater that is serviced and protected lasts longer; one that is installed and forgotten fails earlier.

What You Should Not Try Yourself

• Do not open a pressurised, powered heater. Power and water off first, always.
• Do not block the relief valve to stop it dripping — that turns a safety device into a hazard.
• Do not keep resealing a tank that weeps from its body. A rusted-through tank is replaced; resealing it only delays the inevitable and risks a worse failure.

Repair or Replace — The Honest Answer

A leak from a fitting, valve, or gasket is usually worth repairing. A leak from the tank body means replacement, and so does an old heater that has needed several repairs already. We will tell you honestly which one you have rather than selling a new unit you do not need — or repairing a tank that should be retired. Our water heater installation service covers supply, installation, servicing, and repair, sized to the household.

What It Costs — Honestly

A washer or fitting repair is at the low end; replacing a relief valve or element is more; a full heater supply-and-install is a larger job and depends on the unit. We do not publish a flat figure or invent a call-out rate — we quote from an on-site assessment before any work, never a surprise after. See our plumbing cost guide for how the ranges work.

Standards and Who We Are

Our water-heater work follows the Ghana Building Code (GS 1207:2018) and is carried out by NVTI-certified technicians. Plumbers Ghana has served Accra since 1987, covering Greater Accra plus Kumasi, Takoradi, and Lomé, Togo.

Found Water Under Your Heater? Make It Safe, Then Call

Switch off the power and the water to the heater first. Then, with it safely isolated, call +233 23 063 0020 and describe where the water is coming from — a fitting, the relief valve, or the tank itself — and we will tell you whether it is a repair or a replacement before any work begins.