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Select your affordable Brentry extension builder
Bristol Building Co.Ltd is an established and experienced local extension builder in Brentry. Please contact us for a free, no obligation quote and...
J GREEN PLASTERING LTD are here to help customers who need an Extension Builder in Brentry. We offer a competitive rate to complete all your extens...
Simon Hill
Relax... you have found a reliable extension builder in Brentry. MSH Construction (Bristol) Ltd is a friendly and reliable company based in Brentry...
Smart Building Works are here to help customers who need an Extension Builder in Brentry. We offer a competitive rate to complete all your extensio...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Trusted and professional extension builder in Brentry. Experienced in all extension buildering work and keeping within budget and on quote. KDS Bui...
Sarah Godwin
24 7 BUILDING SOLUTIONS LTD is a trusted extension builder serving customers in Brentry and the surrounding area. Contact us to today to get a comp...
Symmetry Design And Build is a trusted extension builder serving customers in Brentry and the surrounding area. Contact us to today to get a compet...
Trusted and professional extension builder in Brentry. Experienced in all extension buildering work and keeping within budget and on quote. Cullimo...
Brentry, BS10
B ROBINSON BUILDING is an established and experienced local extension builder in Brentry. Please contact us for a free, no obligation quote and com...

Underpinning ranges from £17,276 (MSH Construction (Bristol) Ltd based in BS4) to £17,756 (Symmetry Design And Build based in BS3), 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 Brentry by posting a job with HaMuch and we will send it to extension builders in Brentry.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Bradley Stoke | £34 | £259 |
| Underpin A Building near Clifton | £33 | £255 |
| Underpin A Building near Bristol | £33 | £255 |
| Underpin A Building near Kingswood | £34 | £257 |
| Underpin A Building near South Gloucestershire | £34 | £260 |
| Underpin A Building near Portishead | £33 | £247 |
| Underpin A Building near Keynsham | £33 | £251 |
| Underpin A Building near Yate | £34 | £263 |
| Underpin A Building near North Somerset | £32 | £245 |
| Underpin A Building near Clevedon | £32 | £243 |
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 - £17,581

Two storey extension - £88,121

Build a timber frame extension - £26,081

Build a swimming pool - £81,081

Single storey extension - £56,616

Side return extension - £42,409

Install an RSJ - £2,281

Outbuilding - £10,081

Build a Mansard loft conversion - £52,081

Loft conversion - £34,508

Build a kitchen extension - £42,081

Hip to gable loft conversion - £42,081

Granny annexe - £87,081

Garden office - £10,081

Convert a Garage - £16,081

Garage - £18,581

Build a flat roof extension - £22,081

Build a dormer loft conversion - £42,081

Concrete foundations - £6,331

Convert a bungalow loft - £29,081

Convert a basement - £38,409