From £17,108
Need to find an Extension Builder near you for all your extension buildering work?
John Kinloch Construction Ltd provides a local, trusted ...
From £17,396
Experienced extension builder ready to quote for your work. DM FLOYD BUILDING is the best extension builder in B46. No obligation free quotes and m...
From £17,188
Trusted and professional extension builder in B46. Experienced in all extension buildering work and keeping within budget and on quote. Castlehall ...
From £17,380
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,268
Need to find an Extension Builder near you for all your extension buildering work?
James Leonnard Builders provides a local, trusted extens...
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 £17,324
Reliable person 25 years experience
if you look on a website rated people and have a look at my ratings
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 £17,252
Experienced extension builder ready to quote for your work. SELF BUILD is the best extension builder in B46. No obligation free quotes and many hap...

Underpinning ranges from £16,524 (J s building & maintenance services limited based in B26) to £17,468 (Timber Innovations based in B92), 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 B46 by posting a job with HaMuch and we will send it to extension builders in B46.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Sutton Coldfield | £29 | £228 |
| Underpin A Building near Solihull | £29 | £231 |
| Underpin A Building near Tamworth | £33 | £288 |
| Underpin A Building near Nuneaton | £29 | £225 |
| Underpin A Building near Birmingham | £29 | £227 |
| Underpin A Building near Knowle | £31 | £241 |
| Underpin A Building near Bedworth | £28 | £219 |
| Underpin A Building near Nuneaton & Bedworth | £28 | £219 |
| Underpin A Building near Coventry | £28 | £222 |
| Underpin A Building near Smethwick | £29 | £226 |
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 - £17,184

Two storey extension - £87,526

Build a timber frame extension - £25,684

Build a swimming pool - £80,684

Single storey extension - £48,680

Side return extension - £37,945

Install an RSJ - £1,884

Outbuilding - £9,684

Build a Mansard loft conversion - £51,684

Loft conversion - £30,788

Build a kitchen extension - £41,684

Hip to gable loft conversion - £41,684

Granny annexe - £86,684

Garden office - £9,684

Convert a Garage - £15,684

Garage - £18,184

Build a flat roof extension - £21,684

Build a dormer loft conversion - £41,684

Concrete foundations - £5,934

Convert a bungalow loft - £28,684

Convert a basement - £33,945