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Select an affordable extension builder
From £17,740
Bryanston, DT11
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,820
Our building services company DSB Building Services has over 30 years of experience. We have been helping customers in Dorset and the surrounding a...
From £17,588
Experienced extension builder ready to quote for your work. Aztech Design and Build is the best extension builder in Bryanston. No obligation free ...

Underpinning ranges from £17,588 (Aztech Design and Build based in Bh21) to £17,820 (DSB Building Services based in BH21), but the final cost will depend on the method of underpinning used, how much of your foundations need underpinning and where you live.
Comparing extension builders estimates for underpinning gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get quotes to underpin your home in Bryanston by posting a job with HaMuch and we will send it to extension builders in Bryanston.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Poole | £38 | £250 |
| Underpin A Building near Dorchester | £30 | £230 |
| Underpin A Building near Bournemouth | £38 | £257 |
| Underpin A Building near Weymouth | £33 | £260 |
| Underpin A Building near Christchurch | £36 | £251 |
| Underpin A Building near Yeovil | £34 | £294 |
| Underpin A Building near Salisbury | £35 | £247 |
| Underpin A Building near New Forest | £32 | £245 |
| Underpin A Building near South Somerset | £62 | £270 |
| Underpin A Building near Frome | £33 | £263 |
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.

Underpin a building - £17,716

Two storey extension - £88,324

Build a timber frame extension - £26,216

Build a swimming pool - £81,216

Single storey extension - £59,320

Side return extension - £43,930

Install an RSJ - £2,416

Outbuilding - £10,216

Build a Mansard loft conversion - £52,216

Loft conversion - £35,775

Build a kitchen extension - £42,216

Hip to gable loft conversion - £42,216

Granny annexe - £87,216

Garden office - £10,216

Convert a Garage - £16,216

Garage - £18,716

Build a flat roof extension - £22,216

Build a dormer loft conversion - £42,216

Concrete foundations - £6,466

Convert a bungalow loft - £29,216

Convert a basement - £39,930