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Need to find an Extension Builder near you for all your extension buildering work?
GMC Construction provides a local, trusted extension bui...

A flat roof extension ranges from the cheapest of £22,016 (GMC Construction based in BT70) to the dearest of £22,016 (GMC Construction based in BT70), 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 Tyrone by posting a job with HaMuch. We'll send it to extension builders in Tyrone.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Dungannon | £30 | £238 |
| Build A Flat Roof Extension near Coalisland | £27 | £223 |
| Build A Flat Roof Extension near Craigavon | £23 | £181 |
| Build A Flat Roof Extension near Waringstown | £23 | £167 |
| Build A Flat Roof Extension near Banbridge | £29 | £205 |
| Build A Flat Roof Extension near Maghaberry | £31 | £205 |
| Build A Flat Roof Extension near Magherafelt | £30 | £238 |
| Build A Flat Roof Extension near Crumlin | £26 | £194 |
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 - £17,516

Two storey extension - £88,024

Build a timber frame extension - £26,016

Build a swimming pool - £81,016

Single storey extension - £55,320

Side return extension - £41,680

Install an RSJ - £2,216

Outbuilding - £10,016

Build a Mansard loft conversion - £52,016

Loft conversion - £33,900

Build a kitchen extension - £42,016

Hip to gable loft conversion - £42,016

Granny annexe - £87,016

Garden office - £10,016

Convert a Garage - £16,016

Garage - £18,516

Build a flat roof extension - £22,016

Build a dormer loft conversion - £42,016

Concrete foundations - £6,266

Convert a bungalow loft - £29,016

Convert a basement - £37,680