Extension Builders near you | Find local Extension Builder

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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	£86
Average hourly rate of 9110 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 £27. Extension Builder rates vary with location. For example, R A C Gas in Runcorn charges from £28 per hour.

When hiring Extension Builders in the UK get multiple quote to compare prices and services.

Basement Garage House extension Loft Side return

Trusted, recommended Extension Builders

"Single storey extension" - EPPING FOREST, job posted 07/07/25

"Single storey extension" - , job posted 07/07/25

"We are looking for a builder to renew support beams in our cellar" - WALSALL, job posted 06/07/25

"A loft conversion or second story on our current ground floor extension." - HU7 4, job posted 06/07/25

"Single storey extension" - LE3, job posted 06/07/25

"Single storey extension" - LEICESTER, job posted 06/07/25

"Loft conversion" - , job posted 06/07/25

"Two storey extension" - SOLIHULL, job posted 05/07/25

"Dormer loft conversion" - SN26, job posted 05/07/25

"Single storey extension" - BOREHAMWOOD, job posted 05/07/25

from 150 to 160 of 9110

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.