iStock loft conversion builder windows.jpg

Extensions and conversions specialists

Search for trusted and reliable builders experienced in conversions and extensions across the UK. If you're looking for local builders near to you, enter your postcode or town into the form field above. Find out how to make your project a success in our Ultimate guides series, including Loft conversions: The ultimate guideGarage conversions: The ultimate guide and House extensions: The ultimate guide. 

Get inspired

House extensions_kitchen plans_Cropped image.png

6 common mistakes to avoid when planning an extension

Harrington-Builders-Kenley-Ltd,-London,-kitchen-project-2000W.jpg

6 home extension ideas you won’t want to overlook

Subscribe to The Home Edition

Looking for advice and inspiration for your next building project? Get tips on how to live well and build better, including free tickets to some of the UK's biggest home improvement shows. Find out how we handle your data in our privacy policy

Why use a Master Builder?

At the FMB, we connect clients with quality, local builders they can trust.

Master Builders are committed to high standards and their membership of the FMB must be earned. Members have to pass a professional vetting and independent inspection process before joining to ensure they meet the high standards expected of a Master Builder company. 

Trusted FMB builder carrying plank of wood and ready to start working on a new project.