Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.65 (20 reviews)

Find affordable Farnworth extension builders now

Extension builders rates in Farnworth range from £26/hour £198/day (Amak Construction) to £38/hour £252/day (G P GILMORE JOINERY T/A). To see prices and availability now for your job click green button.

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"Install an RSJ" - M27, job posted 02/09/26

"Loft conversion or dormer" - BL3, job posted 28/07/26

"Dormer loft conversion" - BL3, job posted 05/07/26

"Dormer loft conversion" - BOLTON, job posted 27/04/26

"Loft conversion" - BL3, job posted 27/04/26

"Loft conversion" - BOLTON, job posted 16/04/26

"Kitchen extension" - BL9, job posted 03/03/26

"Loft conversion" - BL4, job posted 16/02/26

"RSJ installation" - BOLTON, job posted 23/11/25

"Loft conversion" - BOLTON, job posted 27/10/25

"Loft extension with dormer" - BL1, job posted 17/09/25

"RSJ installation" - BOLTON, job posted 17/09/25

"Side return extension" - M45, job posted 07/09/25

"Convert garages to 3 or 2 bedroom ensuite semi detached house" - BL4, job posted 13/07/25

"Two storey extension" - BOLTON, job posted 24/04/25

"Two storey extension" - BOLTON, job posted 06/02/25

"Loft conversion" - BOLTON, job posted 16/12/24

"Loft dormer conversion" - BOLTON, job posted 30/11/24

"Loft conversion" - BOLTON, job posted 22/07/24

"Hip to gable loft conversion" - M27, job posted 13/06/24

Compare Farnworth extension builders rates

Compare Farnworth extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Farnworth	£30	£219
Extension Builders near Little Hulton	£31	£220
Extension Builders near Bolton	£31	£219
Extension Builders near Radcliffe	£30	£220
Extension Builders near Swinton	£32	£234
Extension Builders near Atherton	£31	£223
Extension Builders near Whitefield	£31	£229
Extension Builders near Westhoughton	£31	£222
Extension Builders near Eccles	£32	£236
Extension Builders near Prestwich	£31	£233

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 - £25,800

Garden office - £9,800

Granny annexe - £86,800

Build a flat roof extension - £21,800

Convert a Garage - £15,800

Hip to gable loft conversion - £41,800

Convert a bungalow loft - £28,800

Build a dormer loft conversion - £41,800

Build a swimming pool - £80,800

Build a Mansard loft conversion - £51,800

Concrete foundations - £6,050

Underpin a building - £17,300

Two storey extension - £87,700

Convert a basement - £35,250

Side return extension - £39,250

Loft conversion - £31,875

Garage - £18,300

Single storey extension - £51,000

Outbuilding - £9,800

Install an RSJ - £2,000

Build a kitchen extension - £41,800

More extensions & conversions cost guides...

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