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"Hi I’m getting a few quotes for a standard attic conversion to one open space. Intention is to use as fifth bedroom and have it properly registered as such. Structural work needs done (W beams removed , steel beam inserted etc), plus flooring and boarding for walls, insulation etc. Electric and..." - CRUMLIN, job posted 04/11/24
£24/hr
£167/day
Belfast Loft Company
Trusted and professional extension builder in Crumlin. Experienced in all extension buildering work and keeping within budget and on quote. Belfast...
£22/hr
£151/day
Three Homes Limited
Experienced extension builder ready to quote for your work. Three Homes Limited is the best extension builder in Crumlin. No obligation free quotes...
Compare Crumlin extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Crumlin | £26 | £194 |
| Extension Builders near Maghaberry | £31 | £205 |
| Extension Builders near Lisburn | £24 | £164 |
| Extension Builders near Hillsborough and Culcavy | £25 | £170 |
| Extension Builders near Belfast | £23 | £161 |
| Extension Builders near Ballyclare | £20 | £124 |
| Extension Builders near Carryduff | £23 | £158 |
| Extension Builders near Waringstown | £23 | £167 |
| Extension Builders near Greenisland | £23 | £153 |
| Extension Builders near Holywood | £23 | £159 |
Job estimates from extension builders near you
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.

Build a timber frame extension - £25,704

Garden office - £9,704

Granny annexe - £86,704

Build a flat roof extension - £21,704

Convert a Garage - £15,704

Hip to gable loft conversion - £41,704

Convert a bungalow loft - £28,704

Build a dormer loft conversion - £41,704

Build a swimming pool - £80,704

Build a Mansard loft conversion - £51,704

Concrete foundations - £5,954

Underpin a building - £17,204

Two storey extension - £87,556

Convert a basement - £34,170

Side return extension - £38,170

Loft conversion - £30,975

Garage - £18,204

Single storey extension - £49,080

Outbuilding - £9,704

Install an RSJ - £1,904

Build a kitchen extension - £41,704
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