Replace a tap

⭐ Introduction

Replacing a tap is a common plumbing task that many homeowners face at some point. Whether it’s due to a drip that won’t stop, corrosion, cracks, or simply an outdated style, a faulty tap wastes water and can increase bills. Sometimes a replacement is necessary to improve functionality or refresh the look of your kitchen, bathroom, or utility room.

Knowing when to replace a tap is important: if repairs don’t fix leaks or if parts are hard to source, a full replacement brings a more reliable and long-term solution. It also helps avoid water damage caused by persistent leaks.

🔧 What the job involves

Replacing a tap involves removing the old tap and fitting a new one in its place. A plumber will:

• Turn off the water supply to the affected tap.
• Drain any remaining water by opening the existing tap.
• Detach the old tap, which may involve loosening nuts beneath the sink or basin.
• Prepare the surface and plumbing connections for the new tap.
• Connect the new tap using the correct fittings and sealants such as PTFE tape.
• Test the new tap for leaks and correct water flow.
• Clean up the work area.

In some cases, additional work might be needed — for example, replacing washers, valve parts, or even pipework if corrosion or damage is present.

📝 Step-by-step from booking to completion

1. Initial enquiry
   Contact a local plumber, describing the issue and the type of tap you want replaced.

2. Survey and quote
   The plumber may visit your home to assess the tap, check the water supply, and confirm any under-sink access. They’ll provide a written quote.

3. Agree and schedule
   Once you approve the quote, you agree on a date for the work.

4. Day of works
   The plumber arrives, turns off your water supply, removes the old tap, installs the new one, tests it, and cleans up.

5. Completion and paperwork
   You check the tap works properly. The plumber may provide any instructions for care, and a receipt or invoice for the job.

💷 Main costs to expect

• Labour: Typically £60 to £90 per hour for a qualified plumber. Tap replacement often takes 1 to 2 hours.
• Tap unit: Around £20 to £150 depending on style, brand, and features.
• Fittings and sealants: £5 to £15, including washers, PTFE tape, or flexible hoses if needed.
• Disposal: Sometimes a small charge, around £5 to £15 if the plumber removes and disposes of the old tap.
• Certification: Not usually required for replacing taps, but if connected to a system under Building Regulations (e.g., a new kitchen refurbishment), a Part P electrician or plumber report might be necessary.

Example

Item	Cost (£)
Labour (1.5 hours)	90
New mixer tap	80
Fittings and materials	10
Disposal	10
Total estimated cost	£190

📊 What affects the price

• Access: Tight or awkward spaces increase labour time.
• Tap type: Mixer taps, pull-out sprayers, or designer taps cost more than simple pillar taps.
• Condition of plumbing: Corrosion or damaged pipework may need repair or replacement.
• Building Regulations compliance: Kitchen or bathroom refurbishments might require certified work.
• Location: London and the South East tend to have higher labour rates.
• Urgency: Same-day or emergency work often costs more.

⏱ How long does it take?

• Simple tap replacement: Usually 30–90 minutes. This might be replacing a single tap without problems.
• More complex installations: Up to 2–3 hours, especially if pipework needs adjustment or pipe valves require replacement.
• If multiple taps are replaced: Allow more time proportionally.

🏠 Can you DIY it?

Many homeowners tackle tap replacement themselves, especially if they’re confident with basic plumbing. However, consider the following:

• Make sure the water is properly shut off at the mains or stopcock.
• Confirm you understand the plumbing connections and don’t damage pipework.
• The task requires tools such as adjustable spanners, basin wrenches, and suitable sealants.
• For mixer taps or taps with flexible hoses, follow manufacturer instructions carefully.
• If you are unsure about water system integrity or discover damage/corrosion, it is best to hire a professional.
• There are no specific regulations requiring certified plumbers for standard tap replacements, but you must ensure the work is watertight and safe to avoid leaks.

If you’re inexperienced or the job seems too complex, hiring a Gas Safe or Building Regulations registered plumber is advisable, especially if the work connects to larger systems or is part of a renovation.

💰 Typical UK price range

As a rough guide, replacing a single domestic tap typically costs between £100 and £250 including labour and parts. Prices may vary by region and factors mentioned above.

All prices are generally quoted excluding VAT, so add 20% VAT unless dealing with a VAT-exempt property like certain residential lettings or a registered charity.

✅ Handy tips before you start

• Check your water supply: Know the location of your stopcock or isolating valves to turn off water safely.
• Choose a suitable tap: Consider style, water flow rate, and compatibility with your existing plumbing.
• Prepare the workspace: Clear under-sink cupboards and lay down cloths to catch drips.
• Keep paperwork: Save receipts and any installation instructions for future servicing or warranty claim.
• Regular maintenance: Even new taps may benefit from occasional cleaning and checking for leaks.
• Consider water efficiency: Look for taps with the Water Label certification for better water conservation.
• Try to match fittings: If your old tap used flexible hoses or compression fittings, use similar ones where possible to simplify installation.

Replacing a tap may seem straightforward but getting it right helps avoid leaks and keeps your home’s plumbing functioning smoothly for years to come. If in doubt, professional help is usually worth the investment.