Find affordable extension builders
- Trusted, recommended Extension Builders
- Prices for extension builders in the UK
- Find a local builder who can convert your loft or build a side return extension at a great price
- Find out how much extension builder jobs cost
| Low | Average | High |
|---|---|---|
| £13 | £34 | £68 |
| Average hourly rate of 9078 extension builders in the UK excluding VAT or callout charge | ||
Extension Builders in the UK. The average hourly rate of the 10 Extension Builders listed is £33. Extension Builder rates vary with location. For example, Vital Builders in Northolt charges from £39 per hour.
When hiring Extension Builders in the UK get multiple quote to compare prices and services.

Trusted, recommended Extension Builders
RLC Construction
RLC Construction are here to help customers who need an Extension Builder in Rayners Lane. We offer a competitive rate to complete all your extensi...
"Loft conversion" - CHELTENHAM, job posted 09/04/24
Premier Lofts
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Hi, I am looking to put a 3m wide, 2m deep single story rear extension onto a house I'm purchasing. I would like a 2.7m bifold door and a sky light placed into it as well. Externally I would like it rendered and internally finished to plaster. I would like tiles on the roof. Internally two ceiling..." - CH46, job posted 08/04/24
Vital Builders
Vital Builders are here to help customers who need an Extension Builder in Northolt. We offer a competitive rate to complete all your extension bui...
"Loft conversion" - ROMFORD, job posted 08/04/24
Miles Better Construction
Miles Better Construction are here to help customers who need an Extension Builder in Upper Poppleton. We offer a competitive rate to complete all ...
"Build a sun room to rear of house." - TUNSTALL, job posted 08/04/24
BP Builders
BP Builders are here to help customers who need an Extension Builder in Longley. We offer a competitive rate to complete all your extension builder...
"Domer Loft conversion" - SL2, job posted 07/04/24
Pete Nellis Builder
Relax... you have found a reliable extension builder in Heworth. Pete Nellis Builder is a friendly and reliable company based in Heworth who consid...
"Single storey extension" - ST ALBANS, job posted 07/04/24
MERCER PARKIN BUILDERS LIMITED
Trusted and professional extension builder in Selby. Experienced in all extension buildering work and keeping within budget and on quote. MERCER PA...
"Single storey extension" - BRIGHTON, job posted 07/04/24
Prestine Property Maintenance Services
Adam Riach
Prestine Property Maintenance Services is an established and experienced local extension builder in Selby. Please contact us for a free, no obligat...
"Dormer Loft conversion for semi detached property in Reading" - READING, job posted 06/04/24
MGG CONSTRUCTION LTD
Trusted and professional extension builder in Eckington. Experienced in all extension buildering work and keeping within budget and on quote. MGG C...
"Loft conversion" - BELFAST, job posted 06/04/24
AMB Joinery & Building Services
Trusted and professional extension builder in Norton. Experienced in all extension buildering work and keeping within budget and on quote. AMB Join...
"Single storey extension" - WA5, job posted 06/04/24
from 360 to 370 of 9078
Find out how much extension builder jobs cost
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.




















