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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 £39. Extension Builder rates vary with location. For example, Kirkfields Contracts in West Calder charges from £39 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

"Loft conversion Velux conversion" - MILTON KEYNES, job posted 29/12/23

"Need to repair old up and above garage door...... drum missing from 1 side so it gets tilted while opening" - AL1, job posted 29/12/23

"Side return extension" - SALFORD, job posted 29/12/23

"Loft conversion" - E4, job posted 29/12/23

"Loft conversion" - BELFAST, job posted 29/12/23

"Side return extension" - SWALE, job posted 28/12/23

"Loft conversion 2 beds terraced house" - DONCASTER, job posted 27/12/23

"Loft conversion" - SOUTH TYNESIDE, job posted 27/12/23

"Loft conversion" - KINGSTON-UPON-HULL, job posted 23/12/23

"Looking for a builder - who should provide an one stop solution to complete the below job: 1) Convert the Conservatory in to a living space 2) Store room to Study / Work space 3) Side to Rear extension: to have a studio type arrangement (Bed room, shower cubicle, small cloak room). 4) And..." - RH11, job posted 22/12/23

from 390 to 400 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.