Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.63 (20 reviews)

Find affordable Swanley extension builders now

Extension builders rates in Swanley range from £31/hour £202/day (Hyde Building Ltd) to £55/hour £327/day (HOUSE BUILDING SERVICES LIMITED). To see prices and availability now for your job click green button.

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"Concrete foundation" - DARTFORD, job posted 04/03/26

"Dormer loft conversion" - ORPINGTON, job posted 13/02/26

"Loft conversion" - DARTFORD, job posted 03/02/26

"Two storey extension" - DARTFORD, job posted 18/12/25

"Outbuilding" - SIDCUP, job posted 12/11/25

"House clearing - same property you have serviced before" - DA5, job posted 11/10/25

"Granny annexe" - BEXLEYHEATH, job posted 07/10/25

"Single storey extension" - DA15, job posted 20/05/25

"Underpinning" - BEXLEY, job posted 10/03/25

"Loft conversion" - DARTFORD, job posted 04/03/25

"Looking to convert our loft into a room, end of terraced house." - DA2, job posted 04/03/25

"Bungalow loft conversion" - PETTS WOOD, job posted 28/02/25

"Bungalow loft conversion" - PETTS WOOD, job posted 16/01/25

"Two storey rear extension" - DARTFORD, job posted 02/01/25

"Single storey Kitchen extension 4-6m" - DA1, job posted 24/08/24

"Loft conversion" - DARTFORD, job posted 17/08/24

"Loft conversion" - DARTFORD, job posted 10/07/24

"Bungalow Kitchen extension Size - 5m x 3m Bricks - to match existing Skylight" - ORPINGTON, job posted 16/03/24

"Loft conversion" - DARTFORD, job posted 11/09/23

"Loft conversion" - DARTFORD, job posted 11/08/23

Compare Swanley extension builders rates

Compare Swanley extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Bexley	£42	£265
Extension Builders near Dartford	£41	£265
Extension Builders near Bromley	£43	£268
Extension Builders near Northfleet	£41	£261
Extension Builders near Sevenoaks	£38	£234
Extension Builders near Grays	£41	£261
Extension Builders near South Ockendon	£42	£264
Extension Builders near Lewisham	£43	£268
Extension Builders near Gravesend	£40	£260
Extension Builders near Greenwich	£44	£268

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 - £26,112

Garden office - £10,112

Granny annexe - £87,112

Build a flat roof extension - £22,112

Convert a Garage - £16,112

Hip to gable loft conversion - £42,112

Convert a bungalow loft - £29,112

Build a dormer loft conversion - £42,112

Build a swimming pool - £81,112

Build a Mansard loft conversion - £52,112

Concrete foundations - £6,362

Underpin a building - £17,612

Two storey extension - £88,168

Convert a basement - £38,760

Side return extension - £42,760

Loft conversion - £34,800

Garage - £18,612

Single storey extension - £57,240

Outbuilding - £10,112

Install an RSJ - £2,312

Build a kitchen extension - £42,112

More extensions & conversions cost guides...

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