From £51,968
Relax... you have found a reliable extension builder in S1. CS Construction & Conversions is a friendly and reliable company based in S1 who consid...
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 £51,936
Trusted and professional extension builder in S1. Experienced in all extension buildering work and keeping within budget and on quote. Merebrook Co...
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 £52,112
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £52,344
Trusted and professional extension builder in S1. Experienced in all extension buildering work and keeping within budget and on quote. AMB Joinery ...
From £52,088
Hallamshire Paving is an established and experienced local extension builder in S1. Please contact us for a free, no obligation quote and competiti...
From £51,984
BP Builders are here to help customers who need an Extension Builder in S1. We offer a competitive rate to complete all your extension buildering j...
From £51,864
Trusted and professional extension builder in S1. Experienced in all extension buildering work and keeping within budget and on quote. MGG CONSTRUC...

Mansard loft conversions range from the cheapest installation of £51,288 (JON WINDLE CONSTRUCTION based in S17) to the dearest of around £52,344 (AMB Joinery & Building Services based in S8).
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 S1 by posting a job with HaMuch and we'll send it to extension builders in S1.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Sheffield | £32 | £261 |
| Build A Mansard Loft Conversion near Dronfield | £33 | £262 |
| Build A Mansard Loft Conversion near Rotherham | £33 | £257 |
| Build A Mansard Loft Conversion near Wickersley | £33 | £257 |
| Build A Mansard Loft Conversion near Chesterfield | £33 | £257 |
| Build A Mansard Loft Conversion near Barnsley | £31 | £242 |
| Build A Mansard Loft Conversion near Worksop | £33 | £265 |
| Build A Mansard Loft Conversion near Doncaster | £29 | £238 |
| Build A Mansard Loft Conversion near Mansfield Woodhouse | £33 | £263 |
| Build A Mansard Loft Conversion near Holmfirth | £30 | £232 |
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 - £17,453

Two storey extension - £87,929

Build a timber frame extension - £25,953

Build a swimming pool - £80,953

Single storey extension - £54,056

Side return extension - £40,969

Install an RSJ - £2,153

Outbuilding - £9,953

Build a Mansard loft conversion - £51,953

Loft conversion - £33,308

Build a kitchen extension - £41,953

Hip to gable loft conversion - £41,953

Granny annexe - £86,953

Garden office - £9,953

Convert a Garage - £15,953

Garage - £18,453

Build a flat roof extension - £21,953

Build a dormer loft conversion - £41,953

Concrete foundations - £6,203

Convert a bungalow loft - £28,953

Convert a basement - £36,969