From £22,384
We are a established company of over 30 yeats. We offer 24 hour call out service for both commercial and residential property sevices
From £23,336
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 £21,928
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 £21,712
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 £22,400
Trusted and professional extension builder in St Marys. Experienced in all extension buildering work and keeping within budget and on quote. Bell &...
From £22,432
Trusted and professional extension builder in St Marys. Experienced in all extension buildering work and keeping within budget and on quote. Ames T...
From £22,248
Need to find an Extension Builder near you for all your extension buildering work?
D GARDINER CONSTRUCTION provides a local, trusted extens...
From £21,888
Experienced extension builder ready to quote for your work. REDSTONE CONSTRUCTION (TAYSIDE is the best extension builder in St Marys. No obligation...
From £21,960
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...

A flat roof extension ranges from the cheapest of £21,712 (D.F.BUILDERS based in PH11) to the dearest of £23,336 (CFM - Entire building care based in DD5), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in St Marys by posting a job with HaMuch. We'll send it to extension builders in St Marys.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Dundee | £38 | £285 |
| Build A Flat Roof Extension near Forfar | £29 | £236 |
| Build A Flat Roof Extension near Angus | £29 | £236 |
| Build A Flat Roof Extension near Arbroath | £47 | £264 |
| Build A Flat Roof Extension near Perth & Kinross | £32 | £245 |
| Build A Flat Roof Extension near Perth | £32 | £245 |
| Build A Flat Roof Extension near Fife | £44 | £310 |
| Build A Flat Roof Extension near Glenrothes | £42 | £304 |
| Build A Flat Roof Extension near Kirkcaldy | £42 | £296 |
| Build A Flat Roof Extension 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