From £17,884
We are a established company of over 30 yeats. We offer 24 hour call out service for both commercial and residential property sevices
From £18,836
CFM - Entire building care is an established and experienced local extension builder in St Marys. Please contact us for a free, no obligation quot...
From £17,428
Experienced extension builder ready to quote for your work. Andrew Allan Builder is the best extension builder in St Marys. No obligation free quot...
From £17,212
Hi i am first class tradesman which i will leave you 100% happy with the work carried out,i am also puncual in the mornings.never let any clients d...
From £17,900
Trusted and professional extension builder in St Marys. Experienced in all extension buildering work and keeping within budget and on quote. Bell &...
From £17,932
Trusted and professional extension builder in St Marys. Experienced in all extension buildering work and keeping within budget and on quote. Ames T...
From £17,748
Need to find an Extension Builder near you for all your extension buildering work?
D GARDINER CONSTRUCTION provides a local, trusted extens...
From £17,388
Experienced extension builder ready to quote for your work. REDSTONE CONSTRUCTION (TAYSIDE is the best extension builder in St Marys. No obligation...
From £17,460
J & G Builders are here to help customers who need an Extension Builder in St Marys. We offer a competitive rate to complete all your extension bui...

Underpinning ranges from £17,212 (D.F.BUILDERS based in PH11) to £18,836 (CFM - Entire building care based in DD5), 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 St Marys by posting a job with HaMuch and we will send it to extension builders in St Marys.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Dundee | £38 | £285 |
| Underpin A Building near Forfar | £29 | £236 |
| Underpin A Building near Angus | £29 | £236 |
| Underpin A Building near Arbroath | £47 | £264 |
| Underpin A Building near Perth & Kinross | £32 | £245 |
| Underpin A Building near Perth | £32 | £245 |
| Underpin A Building near Fife | £44 | £310 |
| Underpin A Building near Glenrothes | £42 | £304 |
| Underpin A Building near Kirkcaldy | £42 | £296 |
| Underpin A Building near Dunfermline | £46 | £285 |
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 - £17,700

Two storey extension - £88,300

Build a timber frame extension - £26,200

Build a swimming pool - £81,200

Single storey extension - £59,000

Side return extension - £43,750

Install an RSJ - £2,400

Outbuilding - £10,200

Build a Mansard loft conversion - £52,200

Loft conversion - £35,625

Build a kitchen extension - £42,200

Hip to gable loft conversion - £42,200

Granny annexe - £87,200

Garden office - £10,200

Convert a Garage - £16,200

Garage - £18,700

Build a flat roof extension - £22,200

Build a dormer loft conversion - £42,200

Concrete foundations - £6,450

Convert a bungalow loft - £29,200

Convert a basement - £39,750