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Hiring a builder in London, or working as one? Start here.
Plain guides for both sides of a building job. Homeowners can learn how to choose a builder and stay protected. Builders can learn how to protect themselves from non-paying or difficult clients. Every rule is linked to its official source.
Information, not legal advice. This guide explains official rules in plain words for England, with links to the sources. Rules change and every job is different, so check the source or get advice for your situation. Last checked 24 October 2026.
For homeowners
For builders
- Contracts, scope and variations
- Deposits, stage payments and late payment
- Chasing unpaid invoices
- The Construction Act (HGCRA 1996) explained
- Cancellation rules for builders
- Materials and retention of title
- Vetting clients and spotting scams
- Insurance, safety (CDM 2015) and waste
- Records, photos and resolving disputes
Five things that prevent most problems
- Get it in writing. A written quote, a written contract, and every change agreed in writing.
- Keep money in step with the work. Stage payments tied to finished work protect both sides.
- Check, don't assume. Homeowners check the builder; builders check the client and the property.
- Sort permissions early. Planning, building regulations and party walls, and who handles each.
- Keep records. Photos, messages and invoices settle most disagreements.
Browse all guides by topic or print the checklists.