How to Replace an Electric Shower in London

Can You Replace an Electric Shower Yourself?

It is possible to replace an electric shower, but this is not a job to take lightly. Electric showers combine a water supply with a high-power electrical connection, so safety needs to come first.

If you are not suitably qualified to work on electrical installations, use a qualified professional rather than attempting the electrical connections yourself. Working with electricity carries real risks, and professional installation is recommended where the required expertise is not available.

A like-for-like replacement can be simpler than installing a completely new shower because the water and electrical infrastructure may already be in place. However, the new unit still needs to be compatible with the existing setup.

Who Can Replace or Install an Electric Shower?

If you are not properly qualified, look for a suitably qualified electrician or other competent professional who can carry out the electrical work safely.

The installer should be able to check the electrical circuit, water connection and installation requirements for the replacement shower. Check the installer's qualifications and trade credentials before work begins — Serviceteam's own engineers hold Part P qualifications, covering both plumbing and electrical work.

What to Consider Before Replacing an Electric Shower

Before buying a replacement, check that the new shower is suitable for your existing bathroom and electrical system.

Age and Condition

Electric showers have a limited working life, typically around 8–10 years depending on usage and maintenance. Frequent faults or deterioration can be signs that replacement is worth considering.

If the shower has developed a fault but is otherwise relatively new, repair may be a better option than replacement.

Water Pressure and Flow Rate

Check the available water pressure and flow rate before choosing a replacement.

A more powerful or feature-rich electric shower may have different requirements. If you are unsure whether your existing plumbing can support the new unit, get professional advice before buying it.

Wiring and Electrical Capacity

Electric showers require a suitable dedicated electrical circuit capable of handling the unit's power requirements.

If you are replacing the shower with a higher-wattage model, the existing circuit may need to be assessed or upgraded. Electrical work should be left to a qualified professional.

Energy Efficiency

Newer electric showers can offer features such as variable power settings and digital controls. These may give you more control over temperature, water use and energy consumption.

Choose a model that suits your actual requirements rather than paying more for features you will not use.

Features and Functionality

Electric showers are available with different power settings, digital temperature displays and other features.

Think about what matters most before choosing a model. For example, you may prioritise simple controls, temperature accuracy or improved water pressure. Make a list of the features you actually need before choosing a replacement.

Budget

The cost of replacing an electric shower depends on the unit you choose and whether the existing plumbing or electrical setup needs alterations.

Set a realistic budget for both the shower and installation. Getting a quote before work starts can help you understand the total cost rather than looking at the price of the shower alone.

Choosing an Electric Shower

There are many electric shower models available, so it is worth choosing a reputable brand that suits your existing setup.

Serviceteam's engineers replace electric showers from brands including Mira, Triton, Bristan, Aqualisa and Gainsborough.

Before buying, check the manufacturer's installation requirements and make sure the new shower is compatible with the existing connections and electrical supply.

How to Replace an Electric Shower

Replacing an electric shower can be simpler than installing a completely new shower when the existing pipework and electrical connections are suitable. The replacement unit should still be checked carefully against the existing connection points before installation.

The general replacement process is:

Step 1: Turn Off the Power and Water

Turn off the electrical supply to the shower and isolate the water supply.

The power must be confirmed as safely isolated before any electrical work begins. If you are not qualified to carry out this work, stop here and use a qualified professional.

Step 2: Remove the Old Shower

Once the supplies have been safely isolated, the old shower unit can be removed from the wall.

Take care when disconnecting the existing water and electrical connections. Access to these connections may require removal of the front cover of the old unit.

Step 3: Check the Connection Points

Compare the water and electrical connection points on the replacement shower with the existing installation.

Some shower models provide several possible entry points, which can make replacement easier. If the connections do not match, alterations may be required.

Step 4: Fit the New Shower

Position the new shower against the wall and check where it needs to be fixed.

Depending on the replacement unit, existing fixing holes may not line up with the new backplate. Secure the backplate and unit to the wall before reconnecting the water supply and electrical connections, according to the manufacturer's instructions, carried out by a suitably qualified person.

Step 5: Check the Installation

Before the shower is tested, all connections should be checked carefully.

The electrical connections and water connection must be secure, with particular attention paid to avoiding leaks or electrical faults. If anything is unclear, stop and get professional assistance.

Step 6: Test the Shower

Once the installation has been completed and checked, the water and electrical supplies can be restored and the shower tested safely.

If you are not qualified to carry out or verify the electrical installation, use a professional electrician or qualified installer. Water and electricity present a serious safety risk when handled incorrectly.

If the problem with your existing shower is a fault rather than age or an upgrade, our shower repair service in London can help diagnose and repair common shower problems.

Electric Shower Replacement Cost

The cost of replacing an electric shower depends on the shower model, location and whether the existing plumbing and electrics can be reused.

A typical straightforward replacement costs around £150–£1,000. Where plumbing or electrical alterations are required, costs can range from £700–£2,500. Serviceteam's labour costs for electric shower replacements in London start at a fixed rate of £129 + VAT.

These figures should be treated as guide prices rather than a fixed quote. The final cost depends on the shower selected and the work required at the property. If you email a photo of your existing shower, Serviceteam can provide an instant quote to replace it.

Electric Shower Replacement Service

If you would rather have a professional handle the replacement, Serviceteam provides shower installation, replacement and repair services across Greater London.

Serviceteam's plumbing and electrical engineers are available 24/7 for shower installations, replacements and repairs.

A professional can check the existing installation, confirm whether the replacement shower is suitable and identify any plumbing or electrical work needed before fitting.

Need a replacement electric shower in London? Serviceteam can assess your existing shower, check the installation requirements and carry out the replacement where needed. Get in touch with Serviceteam for a quote.