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Need to find an Extension Builder near you for all your extension buildering work?
Neil Massey Roofing Contractor provides a local, trusted...
Hraham Evans
Firestone Surfacing Ltd is a trusted extension builder serving customers in Castleton and the surrounding area. Contact us to today to get a compet...
From £42,400
Castleton, DT9
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £42,160
Need an Extension Builder in Castleton? Morris Concrete Designs has been helping local clients (20 mile radius) with their extension buildering job...

In Castleton, prices for dormer loft conversions range from £41,856 (Firestone Surfacing Ltd based in BA21) to £43,096 (Neil Massey Roofing Contractor based in BA21), but how much your conversion costs will vary depending on the size of your property, how easy access to your roof is and what you want to use the space for.
The best way to get an accurate price is to compare quotes from extension builders in Castleton. Post your job on HaMuch now and we'll put you in touch with available extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Dormer Loft Conversion near Yeovil | £34 | £294 |
| Build A Dormer Loft Conversion near South Somerset | £62 | £270 |
| Build A Dormer Loft Conversion near Dorchester | £30 | £230 |
| Build A Dormer Loft Conversion near Weymouth | £33 | £260 |
| Build A Dormer Loft Conversion near Frome | £33 | £263 |
| Build A Dormer Loft Conversion near Bridgwater | £30 | £236 |
| Build A Dormer Loft Conversion near Taunton | £31 | £242 |
| Build A Dormer Loft Conversion near Bath | £32 | £249 |
| Build A Dormer Loft Conversion near Poole | £38 | £250 |
| Build A Dormer Loft Conversion near Trowbridge | £34 | £266 |
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 - £17,878

Two storey extension - £88,567

Build a timber frame extension - £26,378

Build a swimming pool - £81,378

Single storey extension - £62,560

Side return extension - £45,753

Install an RSJ - £2,578

Outbuilding - £10,378

Build a Mansard loft conversion - £52,378

Loft conversion - £37,294

Build a kitchen extension - £42,378

Hip to gable loft conversion - £42,378

Granny annexe - £87,378

Garden office - £10,378

Convert a Garage - £16,378

Garage - £18,878

Build a flat roof extension - £22,378

Build a dormer loft conversion - £42,378

Concrete foundations - £6,628

Convert a bungalow loft - £29,378

Convert a basement - £41,753