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BRIARWOOD BUILDING CONTRS LTD is an established extension buildering business in Grantham. We come highly recommended and provide competitive quote...
From £51,272
Grantham, NG31
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £51,488
The Glass Box is a trusted extension builder serving customers in Grantham and the surrounding area. Contact us to today to get a competitive quote...

Mansard loft conversions range from the cheapest installation of £51,272 (LG Soffits & Fascias based in NG31) to the dearest of around £51,568 (BRIARWOOD BUILDING CONTRS LTD based in NG32).
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 Grantham by posting a job with HaMuch and we'll send it to extension builders in Grantham.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Grantham | £38 | £228 |
| Build A Mansard Loft Conversion near Newark-on-Trent | £33 | £241 |
| Build A Mansard Loft Conversion near Melton Mowbray | £31 | £222 |
| Build A Mansard Loft Conversion near Gedling | £33 | £242 |
| Build A Mansard Loft Conversion near Carlton | £33 | £242 |
| Build A Mansard Loft Conversion near Stamford | £35 | £248 |
| Build A Mansard Loft Conversion near West Bridgford | £33 | £245 |
| Build A Mansard Loft Conversion near Arnold | £35 | £244 |
| Build A Mansard Loft Conversion near Nottingham | £34 | £241 |
| Build A Mansard Loft Conversion near Spalding | £32 | £238 |
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 - £16,943

Two storey extension - £87,164

Build a timber frame extension - £25,443

Build a swimming pool - £80,443

Single storey extension - £43,853

Side return extension - £35,230

Install an RSJ - £1,643

Outbuilding - £9,443

Build a Mansard loft conversion - £51,443

Loft conversion - £28,525

Build a kitchen extension - £41,443

Hip to gable loft conversion - £41,443

Granny annexe - £86,443

Garden office - £9,443

Convert a Garage - £15,443

Garage - £17,943

Build a flat roof extension - £21,443

Build a dormer loft conversion - £41,443

Concrete foundations - £5,693

Convert a bungalow loft - £28,443

Convert a basement - £31,230