Need to find an Extension Builder near you for all your extension buildering work?
Avonvale Garage Doors provides a local, trusted extensio...
Relax... you have found a reliable extension builder in B91. F.I.I Building Services Ltd is a friendly and reliable company based in B91 who consid...
Ben Birch
I have been in the building industry for 28 years and have carried out extensions,loft conversions, knock throughs, plastering, carpentry,roofing a...
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 £16,932
Peter Smith
Reliable and trustworthy
Also on checkatrafe
From £16,524
JAMES Crawford
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 £17,284
Form Construction Midlands Limited is a trusted extension builder serving customers in B91 and the surrounding area. Contact us to today to get a c...
From £17,428
JEWEL BUILDERS LTD are here to help customers who need an Extension Builder in B91. We offer a competitive rate to complete all your extension buil...
From £17,468
Need to find an Extension Builder near you for all your extension buildering work?
Timber Innovations provides a local, trusted extension b...
From £17,484
Cleaveland Fletcher
Fletcher's Building & Maintenance are a family owned business that understands, in order to achieve our continued success our customers and the...

Underpinning ranges from £16,524 (J s building & maintenance services limited based in B26) to £17,564 (MYBUILD based in B93), 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 B91 by posting a job with HaMuch and we will send it to extension builders in B91.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Solihull | £29 | £231 |
| Underpin A Building near Knowle | £31 | £241 |
| Underpin A Building near Birmingham | £28 | £226 |
| Underpin A Building near Smethwick | £28 | £225 |
| Underpin A Building near Sutton Coldfield | £29 | £228 |
| Underpin A Building near Oldbury | £29 | £226 |
| Underpin A Building near Halesowen | £28 | £225 |
| Underpin A Building near Kenilworth | £29 | £223 |
| Underpin A Building near Coventry | £28 | £221 |
| Underpin A Building near West Bromwich | £28 | £225 |
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 - £17,282

Two storey extension - £87,674

Build a timber frame extension - £25,782

Build a swimming pool - £80,782

Single storey extension - £50,648

Side return extension - £39,052

Install an RSJ - £1,982

Outbuilding - £9,782

Build a Mansard loft conversion - £51,782

Loft conversion - £31,710

Build a kitchen extension - £41,782

Hip to gable loft conversion - £41,782

Granny annexe - £86,782

Garden office - £9,782

Convert a Garage - £15,782

Garage - £18,282

Build a flat roof extension - £21,782

Build a dormer loft conversion - £41,782

Concrete foundations - £6,032

Convert a bungalow loft - £28,782

Convert a basement - £35,052