From £87,148
We have over 25 years experience in all building work and renowned for good workmanship All jobs small and large taken on
From £87,856
FJS CONTRACTS LTD are here to help customers who need an Extension Builder in Coleraine. We offer a competitive rate to complete all your extension...
From £88,024
Seamus Mcmullan building and joinery is an established extension buildering business in Coleraine. We come highly recommended and provide competiti...
From £87,412
Need an Extension Builder in Coleraine? SF Carpentry has been helping local clients (20 mile radius) with their extension buildering jobs for many ...
From £87,244
Trusted and professional extension builder in Coleraine. Experienced in all extension buildering work and keeping within budget and on quote. purdy...
From £87,280
Luxury Garden Studios is an established and experienced local extension builder in Coleraine. Please contact us for a free, no obligation quote and...

Costs range from £87,148 (C McGurk Building Contractor based in BT44) to £88,024 (Seamus Mcmullan building and joinery based in BT45), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
Post your job on HaMuch and we'll send it to extension builders to Coleraine.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near Coleraine | £23 | £201 |
| Two Storey Extension near Ballymoney | £21 | £187 |
| Two Storey Extension near Dungiven | £22 | £190 |
| Two Storey Extension near Eglinton | £25 | £204 |
| Two Storey Extension near Magherafelt | £30 | £238 |
| Two Storey Extension near Londonderry | £24 | £190 |
| Two Storey Extension near Strathfoyle | £24 | £190 |
| Two Storey Extension near Culmore | £24 | £190 |
| Two Storey Extension near Newbuildings | £24 | £190 |
| Two Storey Extension near Strabane | £27 | £223 |
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 - £17,163

Two storey extension - £87,494

Build a timber frame extension - £25,663

Build a swimming pool - £80,663

Single storey extension - £48,253

Side return extension - £37,705

Install an RSJ - £1,863

Outbuilding - £9,663

Build a Mansard loft conversion - £51,663

Loft conversion - £30,588

Build a kitchen extension - £41,663

Hip to gable loft conversion - £41,663

Granny annexe - £86,663

Garden office - £9,663

Convert a Garage - £15,663

Garage - £18,163

Build a flat roof extension - £21,663

Build a dormer loft conversion - £41,663

Concrete foundations - £5,913

Convert a bungalow loft - £28,663

Convert a basement - £33,705