Builder
A builder carries out construction, renovation, and structural work on residential and commercial properties. From extensions and loft conversions to structural repairs and new builds, builders manage the physical construction of your project.
What does a builder do?
Builders handle a wide range of construction work, including:
- House extensions (single and double storey)
- Loft conversions
- Garage conversions
- Structural alterations (removing walls, adding steels)
- Foundation and groundwork
- Brickwork and blockwork
- Roofing repairs and replacements
- General renovation and restoration
- New builds and outbuildings
Builders often coordinate with specialists such as electricians, plumbers, and architects depending on the project scope.
Do builders need qualifications?
Building is not a legally regulated trade in the UK, so technically anyone can call themselves a builder. This makes it especially important to check credentials carefully.
Look for builders who hold relevant NVQ or CSCS qualifications, and consider those who are members of recognised trade bodies such as the Federation of Master Builders (FMB) or TrustMark.
What to look for when hiring a builder
When choosing a builder, consider:
- Trade body membership — FMB or TrustMark members are vetted and must meet quality standards.
- Public liability insurance — Essential for any building work. Ask for proof and check the policy covers the value of your project.
- Detailed written quotes — Ensure the quote specifies materials, labour, timelines, and payment stages.
- Portfolio of previous work — Ask to see completed projects, ideally similar to yours.
- Building Regulations compliance — Your builder should understand when Building Control sign-off is needed.
Frequently Asked Questions
How much does a builder cost?
Builder day rates typically range from £200 to £350. Project costs vary hugely — a single-storey extension might cost £30,000 to £60,000, a loft conversion £25,000 to £50,000, and a garage conversion £10,000 to £20,000.
Do I need planning permission for building work?
Planning rules vary by location and property type. Many home improvements fall under Permitted Development rights, but extensions beyond certain sizes, work in conservation areas, or changes of use typically require planning permission. Your builder or architect should advise.