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How to choose a plumber

What to ask, what to check and how to compare quotes when you are looking for a plumber in London.

Engineer with a tool bag arriving at a front door as the homeowner opens it
Ask what is included in the price before the visit.

Questions to ask first

  • What exactly does the price cover, and what is extra?
  • Is a call-out or diagnostic fee charged, and is it deducted from the repair?
  • Who supplies the parts, and are they included?
  • When is the price confirmed: before the visit or after?
  • What happens if the job turns out to be different?

For gas work

Anyone working on gas appliances must be on the Gas Safe Register. Ask to see the ID card and check it. This applies to boilers, hobs, cookers and gas pipework, and gas safety checks.

Comparing quotes

  • Compare like with like: same scope, same parts
  • Be wary of vague quotes or prices that change on the day
  • Ask what happens if more work is found
  • Ask about guarantees and who to contact afterwards
  • Cheapest is not always lowest cost once extras are added

How we handle it

We review the job, location and price before sending a quote or invoice for advance payment. Once you have paid, your booking is confirmed, and a two-hour arrival window can be confirmed on the day. Diagnosis is £92.50 for the first 45 minutes. Price and services list · Book online.

Urgent problem?

For a leak, switch off the water at the stopcock if you can. See emergency callouts. If you smell gas, call 0800 111 999 straight away.

Common questions

How do I find a plumber near me?

Check the areas a company covers and ask for the full postcode check before booking. See areas we cover.

Do plumbers need to be registered?

Plumbing in general is not licensed, but gas work legally requires Gas Safe registration. Ask about relevant qualifications for unvented cylinders and other specialist work.

Sources and further reading

Related services and advice