Fixington

Fix a leak

Trade: Plumber

⭐ Introduction

A leaking pipe, tap, or radiator is a common plumbing issue in UK homes. Fixing a leak promptly is important to avoid water damage, higher bills, or damp problems. Whether it’s a dripping kitchen tap, a leaking radiator valve, or a slow drip from under the sink, the cause can range from worn washers to cracked pipes.

You might need this job done when you notice water pooling, hear dripping sounds, see mould or damp patches, or receive an unexpectedly high water bill. In many cases, a plumber can quickly identify and fix the leak to prevent further damage.

🔧 What the job involves

Fixing a leak involves finding the exact source of the water escape and then repairing or replacing the damaged part. Depending on the leak’s location and cause, this might include:

  • Tightening or replacing tap washers or cartridges.
  • Repairing or replacing sections of copper or plastic pipes.
  • Changing radiator valves or bleeding radiators.
  • Replacing faulty joints or fittings under sinks.
  • Checking and resealing connections on appliances like washing machines or dishwashers.

The plumber will first isolate the water supply to the affected area to avoid flooding and then carry out repairs using appropriate tools and materials. They will test the repair once completed to ensure it’s watertight.

📝 Step-by-step from booking to completion

  1. Initial enquiry: Contact a local plumber with details of the leak (location, severity, any recent plumbing issues).
  2. Survey and quote: The plumber visits your home to inspect the leak and access, then provides a clear written or verbal quote.
  3. Booking the job: Agree on a date and time for the repair work that suits you.
  4. Preparation: Turn off water supply to affected area (if safe to do so) and clear space for the plumber.
  5. Day of work: The plumber arrives, isolates the water, completes the repair or replacements, and tests for leaks.
  6. Clean-up and checks: After repair, the plumber tidies the area and confirms the fix with you.
  7. Payment and paperwork: You settle the agreed amount and receive any relevant receipts, warranty documents or compliance certificates.
  8. Aftercare advice: The plumber may advise on maintenance or warning signs to watch for future leaks.

💷 Main costs to expect

  • Labour: Usually charged per hour or a fixed call-out fee plus hourly rate. Expect around £40–£60 per hour.
  • Parts and materials: Replacement washers, pipes, valves, fittings may cost £5–£80 depending on type and complexity.
  • Additional work: If corrosion, pipe rerouting or wall access is needed, expect extra charges.
  • Disposal: Minimal or included in labour; disposal of old parts rarely charged separately.
  • Certification: Usually not required for simple plumbing leak repairs, but any work involving gas appliances must be done by Gas Safe registered plumbers with relevant paperwork.

Example:

  • Call-out and 1 hour labour: £55
  • Replacement tap cartridge: £15
  • New radiator valve: £45
  • Total (excl. VAT): approx. £115

📊 What affects the price

  • Ease of access (e.g. under sinks or behind radiators can be more time-consuming).
  • Job complexity (simple washer replacement vs. pipe replacement behind walls).
  • Whether the leak affects hot or cold systems, or involves gas appliances (requires Gas Safe).
  • Whether remedial works are needed (e.g. repairing wall panels after pipework).
  • Location of property (higher costs in London/southern England vs. other regions).
  • Urgency (emergency call-outs outside normal hours usually cost more).

⏱ How long does it take?

  • Simple tap washer or cartridge replacement: 30 minutes to 1 hour.
  • Replacing a radiator valve or small section of pipe: 1–2 hours.
  • More complex pipework or leaks behind walls/floors: 2–4 hours or more, depending on access and repairs needed.

In rare cases where walls or floors must be opened and re-plastered, additional time is required for drying and finishing.

🏠 Can you DIY it?

If the leak is from a straightforward source like a dripping tap or a loose joint under a sink, a confident DIYer with basic plumbing tools can try tightening fittings or replacing washers. However:

  • Always turn off the water supply before starting.
  • Know your limits: DIY on copper pipework or radiator valves needs care to avoid further damage.
  • If the leak is from inside walls, under floors, or near gas appliances, call a Gas Safe registered plumber or professional.
  • Certain repairs that involve hot water cylinders, boilers, or systems regulated under Part G (water supply) or Part P (electrical work) should be left to qualified tradespeople.

Incorrect repairs can cause water damage or invalidate home insurance.

💰 Typical UK price range

Expect to pay anywhere between £70 and £250 for fixing a common leak in a domestic property. This estimate includes call-out fees, labour, and basic parts. More complex jobs can go higher.

Note that all prices exclude VAT at the prevailing rate (usually 20%) unless explicitly stated.

✅ Handy tips before you start

  • Locate your main stopcock and water meter before calling a plumber — this helps in emergencies.
  • Turn off the water supply where possible to reduce damage before repair.
  • Clear the area around the leak to give the plumber easy access.
  • Keep a record of any work done including receipts and warranty information.
  • After the repair, check regularly for any signs of recurring leaks or damp.
  • Consider ongoing maintenance such as bleeding radiators annually and checking taps for drips.
  • For gas appliance leaks or heating system issues, always hire a Gas Safe registered engineer.

By addressing leaks promptly and using a qualified plumber, you can protect your home from water damage and keep your plumbing system running smoothly.