Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.73 (20 reviews)

Find affordable B11 extension builders now

Extension builders rates in B11 range from £15/hour £128/day (J s building & maintenance services limited) to £32/hour £248/day (Brickfast Builders). To see prices and availability now for your job click green button.

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"Build a kitchen extension" - B8, job posted 16/09/26

"Install shade in the garden." - B92, job posted 05/09/26

"Build a kitchen extension" - B13, job posted 28/08/26

"Refurb whole house" - B92, job posted 09/08/26

"Garage conversion" - B92, job posted 02/06/26

"Loft conversion" - B30, job posted 26/05/26

"RSJ installation" - BIRMINGHAM, job posted 13/04/26

"RSJ installation" - B90, job posted 08/03/26

"Rear single storey extension 18sm kitchen & shower room with 2 beams" - B36, job posted 26/11/25

"Dormer loft conversion" - SOLIHULL, job posted 02/11/25

"Two storey extension" - WEST MIDLANDS, job posted 05/10/25

"Concrete foundation" - B29, job posted 03/09/25

"Two storey extension" - WEST MIDLANDS, job posted 03/08/25

"Timber frame extension At present there is a side garage which is in a state of disrepair, on a lower height to the house. Ideally we would like to have a wooden extension along the complete side of the house at the same height as the house, as well as across the rear of the house. We would also..." - B26, job posted 18/07/25

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

"Two storey extension" - WEST MIDLANDS, job posted 08/06/25

"Loft conversion" - B28, job posted 26/05/25

"Two storey extension" - SOLIHULL, job posted 01/04/25

"Rear extension to incorporate toilet and downstairs shower, utility area." - SHELDON, job posted 21/03/25

"We would like a builder for a 3m extension to the back of our house (similar to a conservatory)." - B30, job posted 15/03/25

Compare B11 extension builders rates

Compare B11 extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Birmingham	£29	£229
Extension Builders near Solihull	£29	£231
Extension Builders near Smethwick	£29	£230
Extension Builders near Oldbury	£29	£229
Extension Builders near Sutton Coldfield	£29	£228
Extension Builders near Knowle	£31	£241
Extension Builders near Halesowen	£28	£225
Extension Builders near West Bromwich	£29	£228
Extension Builders near Rowley Regis	£29	£228
Extension Builders near Sandwell	£29	£231

Job estimates from extension builders near you

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.

Build a timber frame extension - £25,784

Garden office - £9,784

Granny annexe - £86,784

Build a flat roof extension - £21,784

Convert a Garage - £15,784

Hip to gable loft conversion - £41,784

Convert a bungalow loft - £28,784

Build a dormer loft conversion - £41,784

Build a swimming pool - £80,784

Build a Mansard loft conversion - £51,784

Concrete foundations - £6,034

Underpin a building - £17,284

Two storey extension - £87,676

Convert a basement - £35,070

Side return extension - £39,070

Loft conversion - £31,725

Garage - £18,284

Single storey extension - £50,680

Outbuilding - £9,784

Install an RSJ - £1,984

Build a kitchen extension - £41,784

More extensions & conversions cost guides...

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