Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.71 (12 reviews)

Find affordable Borehamwood extension builders now

Extension builders rates in Borehamwood range from £25/hour £191/day (Bellator Construction Ltd) to £64/hour £320/day (Rafix Building). To see prices and availability now for your job click green button.

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"Loft conversion(dormer) with bedroom and en-suite bathroom on a bungalow and a rear single storey 5x4 flat roof extension" - AL2, job posted 09/10/26

"Loft conversion" - WD7, job posted 13/09/26

"Loft conversion" - WD7, job posted 30/08/26

"Loft conversion quote" - EN5, job posted 20/06/26

"Loft conversion" - EN5, job posted 20/06/26

"Loft conversion" - WD19, job posted 07/05/26

"Dormer loft conversion" - HA8, job posted 06/03/26

"Granny annexe" - COLINDALE, job posted 12/07/25

"Single storey extension" - BOREHAMWOOD, job posted 05/07/25

"Two storey extension" - HA7, job posted 13/01/25

"Outbuilding and plans" - EN6, job posted 16/12/24

"Single storey extension" - COLINDALE, job posted 19/02/24

Compare Borehamwood extension builders rates

Compare Borehamwood extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Borehamwood	£42	£271
Extension Builders near High Barnet	£43	£272
Extension Builders near Bushey	£43	£278
Extension Builders near Potters Bar	£43	£273
Extension Builders near Brent Cross	£43	£273
Extension Builders near Watford	£43	£280
Extension Builders near Harrow	£43	£270
Extension Builders near Muswell Hill	£44	£273
Extension Builders near St Albans	£43	£272
Extension Builders near Hatfield	£42	£266

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 - £26,192

Garden office - £10,192

Granny annexe - £87,192

Build a flat roof extension - £22,192

Convert a Garage - £16,192

Hip to gable loft conversion - £42,192

Convert a bungalow loft - £29,192

Build a dormer loft conversion - £42,192

Build a swimming pool - £81,192

Build a Mansard loft conversion - £52,192

Concrete foundations - £6,442

Underpin a building - £17,692

Two storey extension - £88,288

Convert a basement - £39,660

Side return extension - £43,660

Loft conversion - £35,550

Garage - £18,692

Single storey extension - £58,840

Outbuilding - £10,192

Install an RSJ - £2,392

Build a kitchen extension - £42,192

More extensions & conversions cost guides...

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