MRE Maintenance Services is an established and experienced local extension builder in SL3. Please contact us for a free, no obligation quote and co...
Experienced extension builder ready to quote for your work. Sherry Construction is the best extension builder in SL3. No obligation free quotes and...
BDR Home Improvement are here to help customers who need an Extension Builder in SL3. We offer a competitive rate to complete all your extension bu...
Dub Solutions is a trusted extension builder serving customers in SL3 and the surrounding area. Contact us to today to get a competitive quote for ...
Lee Townsend
Need to find an Extension Builder near you for all your extension buildering work?
Lp Townsend Brickwork provides a local, trusted extensio...
HAMPTON CONSTRUCTION LTD are here to help customers who need an Extension Builder in SL3. We offer a competitive rate to complete all your extensio...
Relax... you have found a reliable extension builder in SL3. RODOF Ltd is a friendly and reliable company based in SL3 who consider no job as too b...
Experienced extension builder ready to quote for your work. Rai Builders is the best extension builder in SL3. No obligation free quotes and many h...
Mario
Trusted and professional extension builder in SL3. Experienced in all extension buildering work and keeping within budget and on quote. Mario Polis...

Mansard loft conversions range from the cheapest installation of £51,680 (Lp Townsend Brickwork based in SL2) to the dearest of around £52,384 (HAMPTON CONSTRUCTION LTD based in SL2).
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 SL3 by posting a job with HaMuch and we'll send it to extension builders in SL3.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Slough | £42 | £272 |
| Build A Mansard Loft Conversion near Windsor & Maidenhead | £42 | £272 |
| Build A Mansard Loft Conversion near Windsor | £41 | £271 |
| Build A Mansard Loft Conversion near Staines-upon-Thames | £42 | £269 |
| Build A Mansard Loft Conversion near Egham | £42 | £266 |
| Build A Mansard Loft Conversion near Hillingdon | £63 | £276 |
| Build A Mansard Loft Conversion near Gerrards Cross | £43 | £282 |
| Build A Mansard Loft Conversion near Maidenhead | £41 | £273 |
| Build A Mansard Loft Conversion near Ascot | £41 | £276 |
| Build A Mansard Loft Conversion near Sunbury-on-Thames | £42 | £279 |
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 - £17,603

Two storey extension - £88,155

Build a timber frame extension - £26,103

Build a swimming pool - £81,103

Single storey extension - £57,064

Side return extension - £42,661

Install an RSJ - £2,303

Outbuilding - £10,103

Build a Mansard loft conversion - £52,103

Loft conversion - £34,718

Build a kitchen extension - £42,103

Hip to gable loft conversion - £42,103

Granny annexe - £87,103

Garden office - £10,103

Convert a Garage - £16,103

Garage - £18,603

Build a flat roof extension - £22,103

Build a dormer loft conversion - £42,103

Concrete foundations - £6,353

Convert a bungalow loft - £29,103

Convert a basement - £38,661