Replace a shower pump

Trade: Plumber

⭐ Introduction

Replacing a shower pump is a common plumbing job in UK homes where the shower pressure is inadequate. Shower pumps boost the water pressure from your existing system, giving you a stronger, more enjoyable shower. Over time, these pumps can wear out, suffer faults, or become less efficient, leading to a weaker flow.

You might need to replace your shower pump if it’s noisy, leaking, or not delivering the expected pressure. Sometimes, an upgrade can deliver better performance, especially if you’ve changed your bathroom or installed a new shower unit. A properly installed and maintained pump ensures you get consistent water pressure for a refreshing shower, even in older or low-pressure systems.

🔧 What the job involves

A plumber replacing a shower pump will:

Isolate the water supply to the pump and electrical supply (if fitted).
Drain any water in the pipework around the pump.
Remove the old pump, including disconnecting it from the pipework and power.
Fit the new shower pump, ensuring it’s securely connected to the pipework.
Reconnect the electrical supply safely, following UK wiring standards.
Test the new pump to confirm it operates quietly and delivers the required pressure.
Check all connections for leaks and ensure compliance with relevant safety regulations.

If your current pump is old, or the installation needs updating, the plumber might also assess whether your current configuration meets UK Building Regulations, specifically Part P for electrical safety in bathrooms.

📝 Step-by-step from booking to completion

Initial Enquiry: Contact a qualified plumber or local trade specialist and explain your issues with the shower pressure or pump.
Site Survey and Quote: The plumber visits your home to inspect the existing pump, pipework, and electrical setup. They’ll provide a written quote for replacing the pump, including any extras like parts or certification.
Booking the Job: Agree on a date and time with the plumber for the replacement work.
Pre-visit Preparation: Clear access to the shower pump and surrounding area to allow easy work.
Day of the Work: The plumber arrives, isolates water and electricity, removes the old pump, and installs the new one.
Testing: After installation, the plumber runs the shower to check pressure and silence of the pump, inspecting for any leaks.
Completion and Paperwork: Once satisfied, the plumber provides any required certificates and explains any maintenance or warranty details.
Payment and Follow-up: Payment is made as agreed, with a receipt and contact details for any future queries or servicing.

💷 Main costs to expect

Labour: Typically £100–£150 for a standard pump replacement (1–3 hours depending on complexity).
Shower pump unit: Around £120–£300 depending on size and model.
Parts/accessories: Additional fittings, pipework, or electrical materials may cost between £20–£50.
Disposal: Removal and safe disposal of old pump commonly included, or a small fee £10–£20 if not.
Certification: Minor electrical works in bathrooms might require Part P certification or notification—usually £40–£70 if applied separately.

Example: Replacing a standard single or twin pump might cost roughly £300 to £450 in total, including labour, parts, and basic certification.

📊 What affects the price

Access to the pump: Tight or awkward spaces require more time and care.
Pump size and specifications: Larger pumps for higher pressure or bigger homes cost more.
Electrical complexity: If rewiring or upgrading circuits (e.g., adding RCD protection), expect an uplift.
Compliance requirements: Under Part P, certain installations must be signed off or notified to the local authority.
Age and condition of pipework: Leaks or corrosion may need repair or replacement.
Location: Prices can be higher in London or the South East compared to other UK regions.
Urgency: Same-day or emergency call-outs often cost more than pre-booked appointments.

⏱ How long does it take?

Straight swap: Removing an existing pump and fitting a direct replacement usually takes 1–3 hours.
Complex installation: If pipework or electrical upgrades are needed, or if the pump location changes, it can take up to 4–6 hours or longer.
Testing and certification: Usually completed on the same day as the installation.

🏠 Can you DIY it?

While replacing a shower pump might seem straightforward, it involves electrical and plumbing work that must meet UK safety standards. Only someone with suitable plumbing experience and understanding of electrical regulations (including Part P compliance for bathroom installations) should attempt this.

If you’re not a qualified trade professional, it’s safer and often a legal requirement to hire a Gas Safe-registered or certified plumber/electrician to carry out the work. Incorrect installation can risk water damage, electrical hazards, or invalidate your home insurance.

💰 Typical UK price range

For an average shower pump replacement, expect to pay between £300 and £500 including VAT. This covers labour, the new pump, and essential parts.

More complex jobs or high-end pumps can cost upwards of £600. Always get multiple quotes from reputable plumbers before proceeding.

✅ Handy tips before you start

Check pump compatibility: Ensure the new pump matches your system type (single or twin impeller) and shower requirements.
Prepare the workspace: Clear the area around the pump for easy access.
Keep paperwork safe: Retain quotes, receipts, and any electrical certification for future reference or warranty claims.
Regular servicing: To prolong your pump’s life, have it inspected yearly by a qualified plumber.
Ask about warranties: Most pumps come with a manufacturer warranty; confirm what it covers.
Building Regulations: Confirm that your plumber is aware of and compliant with Part P and any local authority requirements.

By choosing a professional, you protect the safety and functionality of your shower system and ensure your home remains comfortable and hassle-free.