Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.67 (6 reviews)

Find affordable Horsham extension builders now

Extension builders rates in Horsham range from £21/hour £161/day (JUST ONE BUILDING SERVICES) to £46/hour £308/day (DGA Complete Construction Ltd). To see prices and availability now for your job click green button.

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"Loft conversion" - RH12, job posted 27/07/26

"Swimming pool" - SOUTHWATER, job posted 25/04/26

"Fit rsj/steels only to rear" - RH13, job posted 30/01/26

"Garage conversion" - HORSHAM, job posted 18/09/25

"Loft conversion" - HORSHAM, job posted 15/09/23

"Loft conversion - rear dormer on 3 bed 1930 mid terrace in Horsham. Plans and structural calcs are available." - HORSHAM, job posted 12/09/23

"DO NOT USE. R cant calculate and has told me to order more than i should have several times. Also cannot lay floors. Did awful job of mine. Wish i had not renewed it and not paid before checked the job. Email me for photos. Only good thing is he turned up when said he would although took months to..." - CRAWLEY,reviewed 01/05/18, FRAN

Compare Horsham extension builders rates

Compare Horsham extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Horsham	£38	£265
Extension Builders near Crawley	£38	£255
Extension Builders near Mid Sussex	£35	£261
Extension Builders near Horley	£38	£258
Extension Builders near Haywards Heath	£35	£256
Extension Builders near Burgess Hill	£36	£256
Extension Builders near Reigate	£40	£270
Extension Builders near Redhill	£41	£269
Extension Builders near East Grinstead	£37	£259
Extension Builders near Great Bookham	£42	£281

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 - £26,048

Garden office - £10,048

Granny annexe - £87,048

Build a flat roof extension - £22,048

Convert a Garage - £16,048

Hip to gable loft conversion - £42,048

Convert a bungalow loft - £29,048

Build a dormer loft conversion - £42,048

Build a swimming pool - £81,048

Build a Mansard loft conversion - £52,048

Concrete foundations - £6,298

Underpin a building - £17,548

Two storey extension - £88,072

Convert a basement - £38,040

Side return extension - £42,040

Loft conversion - £34,200

Garage - £18,548

Single storey extension - £55,960

Outbuilding - £10,048

Install an RSJ - £2,248

Build a kitchen extension - £42,048

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