From £17,484
Fletcher's Building & Maintenance are a family owned business that understands, in order to achieve our continued success our customers and the...
From £17,484
Need to find an Extension Builder near you for all your extension buildering work?
Dayfos Properties Ltd provides a local, trusted extensio...
From £17,468
We are a forward thinking, award winning design and build company based in Solihull in the West Midlands. We strive to deliver the best experience ...
From £17,228
Relax... you have found a reliable extension builder in B27. F.I.I Building Services Ltd is a friendly and reliable company based in B27 who consid...
From £17,444
Need to find an Extension Builder near you for all your extension buildering work?
Avonvale Garage Doors provides a local, trusted extensio...
From £16,524
we have over 13 years exp
we go that extra mile to make sure customers are 100 % happy
we cover a 20 miles radus for b26 area...
From £17,484
Trusted and professional extension builder in B27. Experienced in all extension buildering work and keeping within budget and on quote. 2nd Generat...
From £17,284
Form Construction Midlands Limited is a trusted extension builder serving customers in B27 and the surrounding area. Contact us to today to get a c...
From £17,540
Experienced extension builder ready to quote for your work. Redbrickz Property Management Ltd is the best extension builder in B27. No obligation f...

Underpinning ranges from £16,524 (J s building & maintenance services limited based in B26) to £17,540 (Redbrickz Property Management Ltd based in B90), 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 B27 by posting a job with HaMuch and we will send it to extension builders in B27.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Solihull | £29 | £231 |
| Underpin A Building near Birmingham | £29 | £227 |
| Underpin A Building near Knowle | £31 | £241 |
| Underpin A Building near Smethwick | £29 | £226 |
| Underpin A Building near Sutton Coldfield | £29 | £228 |
| Underpin A Building near Oldbury | £29 | £227 |
| Underpin A Building near Halesowen | £29 | £227 |
| Underpin A Building near West Bromwich | £29 | £227 |
| Underpin A Building near Rowley Regis | £29 | £226 |
| Underpin A Building near Sandwell | £29 | £229 |
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 - £17,287

Two storey extension - £87,681

Build a timber frame extension - £25,787

Build a swimming pool - £80,787

Single storey extension - £50,744

Side return extension - £39,106

Install an RSJ - £1,987

Outbuilding - £9,787

Build a Mansard loft conversion - £51,787

Loft conversion - £31,755

Build a kitchen extension - £41,787

Hip to gable loft conversion - £41,787

Granny annexe - £86,787

Garden office - £9,787

Convert a Garage - £15,787

Garage - £18,287

Build a flat roof extension - £21,787

Build a dormer loft conversion - £41,787

Concrete foundations - £6,037

Convert a bungalow loft - £28,787

Convert a basement - £35,106