Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.71 (7 reviews)

Find affordable Coombe extension builders now

Extension builders rates in Coombe range from £38/hour £237/day (WILDE BUILDING CONTRACTORS LTD) to £49/hour £307/day (Aranstruct). To see prices and availability now for your job click green button.

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"Granny annexe" - KINGSTON UPON THAMES, job posted 21/10/26

"Build a brick outbuilding, 24ft by 14ft including folding doors. Usage is for gym and office." - KT5, job posted 01/05/26

"Single storey extension" - KT2, job posted 25/07/25

"Loft conversion" - SURBITON, job posted 11/04/25

"Two storey extension" - KT2, job posted 16/02/25

"Loft conversion" - KINGSTON UPON THAMES, job posted 18/11/24

"Two Storey Extension plans approved, must be high end builder." - KT2, job posted 01/07/24

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Select your Extension Builder: Compare Extension Builders interested in working with you. You can use HaMuch to safely message local Coombe Extension Builders or phone them directly - you’re in control!

Local Extension Builders in London Boroughs

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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 - £26,152

Garden office - £10,152

Granny annexe - £87,152

Build a flat roof extension - £22,152

Convert a Garage - £16,152

Hip to gable loft conversion - £42,152

Convert a bungalow loft - £29,152

Build a dormer loft conversion - £42,152

Build a swimming pool - £81,152

Build a Mansard loft conversion - £52,152

Concrete foundations - £6,402

Underpin a building - £17,652

Two storey extension - £88,228

Convert a basement - £39,210

Side return extension - £43,210

Loft conversion - £35,175

Garage - £18,652

Single storey extension - £58,040

Outbuilding - £10,152

Install an RSJ - £2,352

Build a kitchen extension - £42,152

More extensions & conversions cost guides...

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