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How to choose a plumber in London: what to ask and what to look for

7 November 2026 · 1 min read · By the Plumbees team

Plumbing problems tend to arrive at awkward moments, which makes it tempting to call the first number you find. A few minutes of checking will usually save you time and money.

Questions worth asking

  • Will you give me a written quote before you start?
  • Does the quote say what is included and what is not?
  • What happens if you find something unexpected?
  • Are you insured for the work you are doing?
  • Do you guarantee your work, and for how long?
  • Who will actually attend, and can you give me a time window?

What to look for in a quote

  • A clear description of the work
  • Parts and labour shown, or at least explained
  • Any exclusions, such as making good decorations
  • Payment terms, so you know when and how much to pay
  • A contact name and company details

Check the credentials that apply

Gas work must be done by someone on the Gas Safe Register. For general plumbing, there is no single legal licence, but membership of a recognised scheme can be a useful sign. Ask what the plumber belongs to and check it with the scheme yourself, rather than relying on a logo on a van or website.

Warning signs

  • Refusing to give any price before arriving
  • Pressure to agree on the spot
  • Demanding the full payment up front for a small job
  • No company name or address
  • Vague answers about insurance

How we work

We publish typical prices for common jobs in our price guide, and we confirm every price in writing before work begins. If we find something unexpected, we stop and talk to you. Read more about how we price our work, or request a quote.

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