Pipe lagging is one of the cheapest plumbing jobs you can do, and one of the best value, given what a burst pipe can cost. Below are typical London price ranges to give you an idea of budget. Every home is different, so treat these as a guide rather than a quote.
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Typical pipe lagging costs in London
| Job | Typical price range |
|---|---|
| DIY foam lagging (materials only) | £1 to £4 per metre |
| Lagging loft pipes and cold-water tank | £100 to £250 |
| Lagging accessible pipework through a whole house | £150 to £400 |
| Under-floor pipework (boards lifted) | £200 to £500 |
| Outside tap isolation valve and cover | £60 to £150 |
These are typical market prices in London, not a quote. Your price depends on your home and the work needed.
What affects the price
- Access. An open, boarded loft is quick. Tight eaves, shallow floor voids or boxed-in pipes take longer.
- Amount of pipework. A small flat might need a few metres; a large period house can need far more.
- Extras. Tank jackets, isolation valves for outside taps, and replacing damaged sections of pipe add to the cost.
- Parking and access in London. Controlled parking zones and congestion-charge areas can add a little to the cost of a visit in central boroughs.
- Urgency. Booking ahead in autumn is cheaper than an emergency call-out during a freeze.
Book a plumber in London
Fixed-price quotes from local, fully trained plumbers.
DIY or call a plumber?
Lagging an open loft is a reasonable DIY job if you are comfortable working up there safely. Call a plumber if pipes are hard to reach, if you find damaged or corroded sections, if you need isolation valves fitted, or if you would like the whole house checked in one visit.
How to avoid overpaying
- Ask for a fixed price that covers materials, labour and any valves.
- Get the loft, under-floor areas and outside taps covered in one visit rather than separate call-outs.
- Book before the first frost rather than during a cold snap.
Frequently asked questions
Is pipe lagging worth the money?
Almost always. A single burst pipe can cause thousands of pounds of damage, while lagging costs a fraction of that.
How long does it take?
A typical loft and accessible pipework takes one to three hours. Under-floor work can take longer.
Can you lag pipes the same day?
Often, yes, depending on availability. Call us to check.
