iConstruction are here to help customers who need an Extension Builder in HD9. We offer a competitive rate to complete all your extension builderin...
Irving Property is an established extension buildering business in HD9. We come highly recommended and provide competitive quotes for your work.
Experienced extension builder ready to quote for your work. THE LADY BUILDER is the best extension builder in HD9. No obligation free quotes and ma...
From £17,580
OD Contractors ltd provides a range of building services to bring home improvement projects to life. With over 30 years of shared experience our bu...
From £17,316
Trusted and professional extension builder in HD9. Experienced in all extension buildering work and keeping within budget and on quote. J P McDonag...
From £17,108
Relax... you have found a reliable extension builder in HD9. Conroy Brook Group is a friendly and reliable company based in HD9 who consider no job...
From £17,548
Codus Construction Ltd are here to help customers who need an Extension Builder in HD9. We offer a competitive rate to complete all your extension ...

Underpinning ranges from £17,108 (Conroy Brook Group based in HD9) to £17,612 (THE LADY BUILDER based in HD8), 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 HD9 by posting a job with HaMuch and we will send it to extension builders in HD9.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Holmfirth | £30 | £232 |
| Underpin A Building near Kirklees | £30 | £231 |
| Underpin A Building near Huddersfield | £29 | £224 |
| Underpin A Building near Mirfield | £31 | £236 |
| Underpin A Building near Brighouse | £30 | £230 |
| Underpin A Building near Dewsbury | £33 | £245 |
| Underpin A Building near Halifax | £32 | £243 |
| Underpin A Building near Ossett | £33 | £245 |
| Underpin A Building near Batley | £32 | £239 |
| Underpin A Building near Stalybridge | £38 | £231 |
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 - £17,372

Two storey extension - £87,808

Build a timber frame extension - £25,872

Build a swimming pool - £80,872

Single storey extension - £52,440

Side return extension - £40,060

Install an RSJ - £2,072

Outbuilding - £9,872

Build a Mansard loft conversion - £51,872

Loft conversion - £32,550

Build a kitchen extension - £41,872

Hip to gable loft conversion - £41,872

Granny annexe - £86,872

Garden office - £9,872

Convert a Garage - £15,872

Garage - £18,372

Build a flat roof extension - £21,872

Build a dormer loft conversion - £41,872

Concrete foundations - £6,122

Convert a bungalow loft - £28,872

Convert a basement - £36,060