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Select your affordable Bryn extension builder
Bryn, SA13
G Wager Building Maintenance is a trusted extension builder serving customers in Bryn and the surrounding area. Contact us to today to get a compet...
Relax... you have found a reliable extension builder in Bryn. Cwtch Property Developments is a friendly and reliable company based in Bryn who cons...
Trusted and professional extension builder in Bryn. Experienced in all extension buildering work and keeping within budget and on quote. Complete B...
Bryn, SA13
Need an Extension Builder in Bryn? K.D.L Property Maintenance has been helping local clients (20 mile radius) with their extension buildering jobs ...
Marin Hughes General Builders is a trusted extension builder serving customers in Bryn and the surrounding area. Contact us to today to get a compe...
Bryn, SA13
SS BUILDER are here to help customers who need an Extension Builder in Bryn. We offer a competitive rate to complete all your extension buildering ...
Trusted and professional extension builder in Bryn. Experienced in all extension buildering work and keeping within budget and on quote. HALL & HAR...

Underpinning ranges from £17,076 (Cwtch Property Developments based in CF34) to £17,476 (HALL & HARRIS CONSTRUCTION based in SA11), 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 Bryn by posting a job with HaMuch and we will send it to extension builders in Bryn.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Port Talbot | £31 | £227 |
| Underpin A Building near Maesteg | £38 | £283 |
| Underpin A Building near Neath | £30 | £225 |
| Underpin A Building near Pyle | £34 | £262 |
| Underpin A Building near Neath Port Talbot | £31 | £224 |
| Underpin A Building near Porthcawl | £33 | £252 |
| Underpin A Building near Bridgend | £32 | £200 |
| Underpin A Building near Swansea | £29 | £229 |
| Underpin A Building near Rhondda | £31 | £206 |
| Underpin A Building near Rhondda, Cynon, Taff | £31 | £209 |
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 - £17,309

Two storey extension - £87,714

Build a timber frame extension - £25,809

Build a swimming pool - £80,809

Single storey extension - £51,183

Side return extension - £39,353

Install an RSJ - £2,009

Outbuilding - £9,809

Build a Mansard loft conversion - £51,809

Loft conversion - £31,961

Build a kitchen extension - £41,809

Hip to gable loft conversion - £41,809

Granny annexe - £86,809

Garden office - £9,809

Convert a Garage - £15,809

Garage - £18,309

Build a flat roof extension - £21,809

Build a dormer loft conversion - £41,809

Concrete foundations - £6,059

Convert a bungalow loft - £28,809

Convert a basement - £35,353