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Select your affordable Coleraine extension builder
From £9,608
Need an Extension Builder in Coleraine? SF Carpentry has been helping local clients (20 mile radius) with their extension buildering jobs for many ...
From £9,496
Trusted and professional extension builder in Coleraine. Experienced in all extension buildering work and keeping within budget and on quote. purdy...

Garden offices range from the cheapest of £9,496 (Purdy build based in bt53) to the dearest of £9,608 (SF Carpentry based in BT51), but these are only estimates.
The best way to compare costs is to get actual quotes.
Get rates and quotes to build a garden office in Coleraine by posting a job with HaMuch. We'll send it to extension builders in Coleraine.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Garden Office near Coleraine | £23 | £201 |
| Garden Office near Ballymoney | £21 | £187 |
| Garden Office near Dungiven | £22 | £190 |
| Garden Office near Eglinton | £25 | £204 |
| Garden Office near Magherafelt | £30 | £238 |
| Garden Office near Londonderry | £24 | £190 |
| Garden Office near Strathfoyle | £24 | £190 |
| Garden Office near Culmore | £24 | £190 |
| Garden Office near Newbuildings | £24 | £190 |
| Garden Office near Strabane | £30 | £240 |
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 - £17,052

Two storey extension - £87,328

Build a timber frame extension - £25,552

Build a swimming pool - £80,552

Single storey extension - £46,040

Side return extension - £36,460

Install an RSJ - £1,752

Outbuilding - £9,552

Build a Mansard loft conversion - £51,552

Loft conversion - £29,550

Build a kitchen extension - £41,552

Hip to gable loft conversion - £41,552

Granny annexe - £86,552

Garden office - £9,552

Convert a Garage - £15,552

Garage - £18,052

Build a flat roof extension - £21,552

Build a dormer loft conversion - £41,552

Concrete foundations - £5,802

Convert a bungalow loft - £28,552

Convert a basement - £32,460