From £52,320
Trusted and professional extension builder in S17. Experienced in all extension buildering work and keeping within budget and on quote. GFN Buildin...
From £51,968
Trusted and professional extension builder in S17. Experienced in all extension buildering work and keeping within budget and on quote. R S Heating...
From £51,960
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £52,312
We've been helping people across South Yorkshire and Derbyshire enhance their properties for almost two decades now, using our wealth of expertise ...
From £52,008
We are a family run business with 20 years experience.
We take great care and attention to the work we carry out and pride ourselves on ...
From £52,264
Unity Development Group is a trusted extension builder serving customers in S17 and the surrounding area. Contact us to today to get a competitive ...
From £52,072
Need an Extension Builder in S17? Cortworth Millhouse Design & Build has been helping local clients (20 mile radius) with their extension builderin...
From £51,936
Dore Decor are a family run business with over 30 years experience - we offer an extensive range of building services and are able to provide a ful...
From £52,336
Blenheim Park Developments is an established and experienced local extension builder in S17. Please contact us for a free, no obligation quote and ...

Mansard loft conversions range from the cheapest installation of £51,288 (JON WINDLE CONSTRUCTION based in S17) to the dearest of around £52,336 (Blenheim Park Developments based in S7).
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 S17 by posting a job with HaMuch and we'll send it to extension builders in S17.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Dronfield | £35 | £288 |
| Build A Mansard Loft Conversion near Sheffield | £34 | £280 |
| Build A Mansard Loft Conversion near Chesterfield | £33 | £257 |
| Build A Mansard Loft Conversion near Rotherham | £33 | £257 |
| Build A Mansard Loft Conversion near Wickersley | £33 | £257 |
| Build A Mansard Loft Conversion near Buxton | £30 | £230 |
| Build A Mansard Loft Conversion near Worksop | £33 | £265 |
| Build A Mansard Loft Conversion near Barnsley | £31 | £242 |
| Build A Mansard Loft Conversion near Alfreton | £34 | £261 |
| Build A Mansard Loft Conversion near Sutton-in-Ashfield | £33 | £265 |
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 - £17,546

Two storey extension - £88,070

Build a timber frame extension - £26,046

Build a swimming pool - £81,046

Single storey extension - £55,928

Side return extension - £42,022

Install an RSJ - £2,246

Outbuilding - £10,046

Build a Mansard loft conversion - £52,046

Loft conversion - £34,185

Build a kitchen extension - £42,046

Hip to gable loft conversion - £42,046

Granny annexe - £87,046

Garden office - £10,046

Convert a Garage - £16,046

Garage - £18,546

Build a flat roof extension - £22,046

Build a dormer loft conversion - £42,046

Concrete foundations - £6,296

Convert a bungalow loft - £29,046

Convert a basement - £38,022