Professional builders for extensions, renovations, and new builds across the UK.
Extensions
Renovations
Loft Conversions
New Builds
Structural Work
Whether you are planning a rear extension, a loft conversion, a garage conversion or a full renovation, the builder you choose determines whether the project runs to time and budget — or becomes a source of stress. A good general builder coordinates groundwork, brickwork, structural alterations and the follow-on trades, acting as the backbone of any significant project. HireTrades helps you find established local builders with verifiable track records.
Before hiring a builder, ask to visit or see photos of at least two completed projects similar to yours. Confirm they hold public liability insurance (£1m minimum, £2m preferred) and ask whether they will manage building control sign-off. For structural work you will need calculations from a structural engineer — a professional builder will be comfortable working from these drawings. Agree a staged payment schedule tied to milestones rather than paying large sums up front, and get everything in writing including start date, duration and what happens with variations.
As a guide, single-storey extensions in the UK cost £1,800–£2,800 per square metre depending on region and specification, so a 20m² extension typically lands between £36,000 and £56,000 before VAT. Loft conversions range from £25,000 for a simple roof-light conversion to £60,000+ for a dormer with en-suite. Garage conversions are usually £8,000–£20,000. Day rates for a builder and labourer team are typically £300–£450.
Builders on HireTrades carry public review histories from verified customers, so you can see how they performed on real projects — communication, tidiness, timekeeping and quality. Post your project for free, compare detailed quotes and speak to several builders before committing. For larger projects, that comparison regularly saves homeowners thousands of pounds.
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