⚡ How to Replace an Electric Shower (Step-by-Step Guide)

If your electric shower isn’t heating properly or has seen better days, replacing it can make a big difference to your daily routine. While it’s a manageable job for a qualified tradesperson, it’s important to remember that electric showers involve both water and electricity so safety comes first.

Here’s a friendly, helpful guide from DM Emergency Plumbing explaining the process, plus when to call a professional.

⚠️ Important Safety Notice

Working with electricity in the UK is regulated under Part P of the Building Regulations.
This means any electrical connections or replacements must be carried out by a qualified electrician or certified under Part P.

You can handle basic plumbing elements (like the water inlet), but electrical wiring must only be done by someone who is trained and registered.

If you’re ever unsure  don’t risk it. Call a professional.

🧰 What You’ll Need

• Adjustable spanner

• Screwdriver

• PTFE tape

• Drill (if new holes are needed)

• New electric shower (matching your old model’s power rating)

🚿 Step 1: Turn Off the Power and Water

1. Turn off electricity at the fuse box or isolator switch.

2. Turn off the water supply feeding the shower.

3. Double-check that both are fully off before proceeding.

🔧 Step 2: Remove the Old Shower

1. Remove the shower cover and disconnect the water pipe.

2. Leave any electrical disconnection to a qualified electrician.

3. Unscrew the old shower unit from the wall and gently lift it away.

💦 Step 3: Prepare for the New Shower

1. Clean the wall area and check for leaks or damaged fittings.

2. Make sure the new unit’s cable and water inlet positions match the old one.

3. If they don’t, slight plumbing adjustments may be needed call a professional plumber if required.

🪠 Step 4: Fit the New Shower

1. Fix the new shower securely to the wall.

2. Connect the water pipe using PTFE tape for a watertight seal.

3. A qualified electrician should then connect the wiring to ensure it meets safety standards.

✅ Step 5: Test the Shower

1. Once all connections are complete, turn on the water supply.

2. Have the electrician test the electrical circuit and power it on.

3. Check for proper flow and temperature.

🧑‍🔧 When to Call a Professional

Electric showers combine plumbing and electrical systems so they’re best left to the experts.

Whether your shower needs upgrading or urgent repair, we’ll make sure it’s done properly and in line with UK regulations.