Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.7 (10 reviews)

Find affordable BH4 extension builders now

Extension builders rates in BH4 range from £31/hour £197/day (ALWYN DOMINEY) to £45/hour £356/day (RNTP ltd). To see prices and availability now for your job click green button.

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"Dormer loft conversion" - BH15, job posted 21/10/25

"Side return extension" - DORSET, job posted 19/10/25

"Dormer loft conversion" - POOLE, job posted 17/10/25

"Loft conversion" - POOLE, job posted 23/08/25

"Extension for kitchen" - DORSET, job posted 19/07/25

"Garage conversion" - BOURNEMOUTH, job posted 29/05/25

"Remove old p shape conservatory with dwarf wall and build 6x3.5 Mtrs a single storey extension with bifold doors plus 1 x window take out to internal walls add t steel approx length of steel for t is 9.5 Mtrs." - BH9, job posted 16/03/25

"2 storey extension and loft conversion . Detached house conversion in to 5 flats . Looking all in service . I can send you architectural drawings . The project address 3 Richmond park very similar to 1richmond park . If you Google it it will be similar project the only difference. Number 1 had a..." - BH8, job posted 21/09/24

"Loft conversion" - POOLE, job posted 01/02/24

"Loft conversion" - BOURNEMOUTH, job posted 09/08/23

Compare BH4 extension builders rates

Compare BH4 extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Bournemouth	£38	£257
Extension Builders near Poole	£38	£250
Extension Builders near Christchurch	£36	£251
Extension Builders near New Forest	£32	£245
Extension Builders near Totton	£34	£243
Extension Builders near Dorchester	£30	£230
Extension Builders near Salisbury	£35	£247
Extension Builders near Southampton	£34	£243
Extension Builders near Weymouth	£33	£260
Extension Builders near Romsey	£32	£230

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 - £26,080

Garden office - £10,080

Granny annexe - £87,080

Build a flat roof extension - £22,080

Convert a Garage - £16,080

Hip to gable loft conversion - £42,080

Convert a bungalow loft - £29,080

Build a dormer loft conversion - £42,080

Build a swimming pool - £81,080

Build a Mansard loft conversion - £52,080

Concrete foundations - £6,330

Underpin a building - £17,580

Two storey extension - £88,120

Convert a basement - £38,400

Side return extension - £42,400

Loft conversion - £34,500

Garage - £18,580

Single storey extension - £56,600

Outbuilding - £10,080

Install an RSJ - £2,280

Build a kitchen extension - £42,080

More extensions & conversions cost guides...

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