Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.73 (15 reviews)

Find affordable Knowle extension builders now

Extension builders rates in Knowle range from £15/hour £128/day (J s building & maintenance services limited) to £60/hour £400/day (Oakwood Construction). To see prices and availability now for your job click green button.

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

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

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

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

"Single storey extension" - WARWICKSHIRE, job posted 15/01/26

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

"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" - SOLIHULL, job posted 01/04/25

"Loft conversion" - SOLIHULL, job posted 12/03/25

"Total cost of structural engineer report, supply and install 6M RSJ for a load bearing wall to make kitchen/diner." - B90, job posted 11/01/25

"Building two bedrooms above current garage to make a dormant bungalow into 4 bedrooms instead of 2 bedrooms." - B93, job posted 19/06/24

"Side return extension" - SOLIHULL, job posted 06/05/24

"Create a brick and tile day room off the kitchen and a utility room utilising half of the garage. The finished work in both quality of workmanship and material is to be as far as possible seamless and indistinguishable from the existing. The brickwork must be of a high standard and with good mortar..." - B91, job posted 06/03/24

"Side return extension" - SOLIHULL, job posted 10/11/23

Compare Knowle extension builders rates

Compare Knowle extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Knowle	£31	£241
Extension Builders near Solihull	£29	£231
Extension Builders near Kenilworth	£30	£229
Extension Builders near Coventry	£29	£226
Extension Builders near Warwick	£28	£213
Extension Builders near Birmingham	£28	£228
Extension Builders near Leamington Spa	£27	£212
Extension Builders near Sutton Coldfield	£28	£227
Extension Builders near Smethwick	£29	£230
Extension Builders near Bedworth	£28	£219

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 - £25,880

Garden office - £9,880

Granny annexe - £86,880

Build a flat roof extension - £21,880

Convert a Garage - £15,880

Hip to gable loft conversion - £41,880

Convert a bungalow loft - £28,880

Build a dormer loft conversion - £41,880

Build a swimming pool - £80,880

Build a Mansard loft conversion - £51,880

Concrete foundations - £6,130

Underpin a building - £17,380

Two storey extension - £87,820

Convert a basement - £36,150

Side return extension - £40,150

Loft conversion - £32,625

Garage - £18,380

Single storey extension - £52,600

Outbuilding - £9,880

Install an RSJ - £2,080

Build a kitchen extension - £41,880

More extensions & conversions cost guides...

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