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Trusted and professional extension builder in S42. Experienced in all extension buildering work and keeping within budget and on quote. Merebrook C...
R.J Building Services is an established extension buildering business in S42. We come highly recommended and provide competitive quotes for your wo...
Here at AEC Building Services, we've been improving homes for local residential customers in Chesterfield, Derbyshire and surrounding areas since 1...
Need an Extension Builder in S42? D H Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many years....
Camo Bear Construction is a local building contractor based in Wingerworth, Chesterfield. We cover many areas across Derbyshire, South Yorkshire an...
From £51,888
JWM Building Services is a trusted extension builder serving customers in S42 and the surrounding area. Contact us to today to get a competitive qu...
From £51,880
RJH Building Services is a trusted extension builder serving customers in S42 and the surrounding area. Contact us to today to get a competitive qu...
From £51,928
Relax... you have found a reliable extension builder in S42. Palace Roofline Ltd is a friendly and reliable company based in S42 who consider no jo...

Mansard loft conversions range from the cheapest installation of £51,880 (RJH Building Services based in S40) to the dearest of around £52,272 (R.J Building Services based in S41).
While these estimates give you a good idea how much you'll pay for a mansard loft conversion, the only way to get an accurate price is to get real quotes from real builders.
Get quotes to install a mansard loft conversion in S42 by posting a job with HaMuch and we'll send it to extension builders in S42.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Chesterfield | £33 | £257 |
| Build A Mansard Loft Conversion near Dronfield | £33 | £262 |
| Build A Mansard Loft Conversion near Alfreton | £34 | £261 |
| Build A Mansard Loft Conversion near Sutton-in-Ashfield | £33 | £264 |
| Build A Mansard Loft Conversion near Kirkby-in-Ashfield | £34 | £269 |
| Build A Mansard Loft Conversion near Ashfield | £34 | £269 |
| Build A Mansard Loft Conversion near Mansfield Woodhouse | £33 | £262 |
| Build A Mansard Loft Conversion near Mansfield | £33 | £261 |
| Build A Mansard Loft Conversion near Ripley | £32 | £246 |
| Build A Mansard Loft Conversion near Forest Town | £33 | £262 |
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 - £17,522

Two storey extension - £88,033

Build a timber frame extension - £26,022

Build a swimming pool - £81,022

Single storey extension - £55,440

Side return extension - £41,748

Install an RSJ - £2,222

Outbuilding - £10,022

Build a Mansard loft conversion - £52,022

Loft conversion - £33,956

Build a kitchen extension - £42,022

Hip to gable loft conversion - £42,022

Granny annexe - £87,022

Garden office - £10,022

Convert a Garage - £16,022

Garage - £18,522

Build a flat roof extension - £22,022

Build a dormer loft conversion - £42,022

Concrete foundations - £6,272

Convert a bungalow loft - £29,022

Convert a basement - £37,748