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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 £32. Extension Builder rates vary with location. For example, BRENCOLL BUILDING in Little Lever charges from £29 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 Hello, I am interested/looking into a loft conversion. Would like a room + bathroom. Would like to see if its possible with current space and how much it would cost, aswell as a time estimate of completion. Thanks" - LUTON, job posted 24/08/24

"Single story extension , single room with loft and bathroom width of house and 3-4 depth for studio for in law" - TQ1, job posted 24/08/24

"I need to repair bays as its crumbling I don't know how to describe if you come and see what I mean. Avtar" - E12, job posted 24/08/24

"Single storey Kitchen extension 4-6m" - DA1, job posted 24/08/24

"Loft conversion looking for quotes for a loft conversion to include stairs, x2 bedrooms, storage and potentially a bathroom" - BEDFORDSHIRE, job posted 23/08/24

"3 meters wall weight bearing taken off and put steel" - B20, job posted 23/08/24

"Single storey extension" - IP25, job posted 22/08/24

"Already have a 3m extension, I want to extend it to 6m. Main job will be the bricks, new ceiling, flooring, under floor heating." - W5, job posted 21/08/24

"Loft conversion turning it into a room" - STOCKPORT, job posted 21/08/24

"I would like a double garage built at the side of the house" - LEEDS, job posted 21/08/24

from 300 to 310 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.