From £17,324
Reliable person 25 years experience
if you look on a website rated people and have a look at my ratings
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 £17,188
Trusted and professional extension builder in B33. 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 £17,396
Experienced extension builder ready to quote for your work. DM FLOYD BUILDING is the best extension builder in B33. No obligation free quotes and m...
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 £17,180
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
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 £17,484
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 £17,484 (Dayfos Properties Ltd based in B11), 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 B33 by posting a job with HaMuch and we will send it to extension builders in B33.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Birmingham | £25 | £197 |
| Underpin A Building near Solihull | £24 | £194 |
| Underpin A Building near Sutton Coldfield | £25 | £202 |
| Underpin A Building near Knowle | £26 | £203 |
| Underpin A Building near Smethwick | £25 | £195 |
| Underpin A Building near Oldbury | £25 | £196 |
| Underpin A Building near West Bromwich | £25 | £195 |
| Underpin A Building near Sandwell | £25 | £196 |
| Underpin A Building near Halesowen | £25 | £197 |
| Underpin A Building near Tamworth | £28 | £241 |
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 - £17,200

Two storey extension - £87,550

Build a timber frame extension - £25,700

Build a swimming pool - £80,700

Single storey extension - £49,000

Side return extension - £38,125

Install an RSJ - £1,900

Outbuilding - £9,700

Build a Mansard loft conversion - £51,700

Loft conversion - £30,938

Build a kitchen extension - £41,700

Hip to gable loft conversion - £41,700

Granny annexe - £86,700

Garden office - £9,700

Convert a Garage - £15,700

Garage - £18,200

Build a flat roof extension - £21,700

Build a dormer loft conversion - £41,700

Concrete foundations - £5,950

Convert a bungalow loft - £28,700

Convert a basement - £34,125