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Comparing extension builders estimates for Loft conversion gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost of a loft conversion in Newbuildings by posting your job to extension builders in Newbuildings.
"Loft conversion" - BT48, job posted 01/10/26
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Loft Conversion near Newbuildings | £24 | £190 |
| Loft Conversion near Londonderry | £24 | £190 |
| Loft Conversion near Strathfoyle | £24 | £190 |
| Loft Conversion near Culmore | £24 | £190 |
| Loft Conversion near Eglinton | £25 | £204 |
| Loft Conversion near Strabane | £30 | £240 |
| Loft Conversion near Dungiven | £22 | £190 |
| Loft Conversion near Coleraine | £23 | £201 |
| Loft Conversion near Magherafelt | £30 | £238 |
| Loft Conversion near Coalisland | £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 - £17,276

Two storey extension - £87,664

Build a timber frame extension - £25,776

Build a swimming pool - £80,776

Single storey extension - £50,520

Side return extension - £38,980

Install an RSJ - £1,976

Outbuilding - £9,776

Build a Mansard loft conversion - £51,776

Loft conversion - £31,650

Build a kitchen extension - £41,776

Hip to gable loft conversion - £41,776

Granny annexe - £86,776

Garden office - £9,776

Convert a Garage - £15,776

Garage - £18,276

Build a flat roof extension - £21,776

Build a dormer loft conversion - £41,776

Concrete foundations - £6,026

Convert a bungalow loft - £28,776

Convert a basement - £34,980