From £51,936
Plumbing, painting exterior, interior, extensions, plastering, skiming, carpeting, Flooring, you can ask us ..
From £53,584
Propello is an established and experienced local extension builder in SG3. Please contact us for a free, no obligation quote and competitive rates...
From £51,456
we are very efficient in our work.and make sure our client is one 100% satisfied with our work.
From £52,456
A.J Builders is an established and experienced local extension builder in SG3. Please contact us for a free, no obligation quote and competitive ra...
From £52,272
Top Notch Tradesmen is an established and experienced local extension builder in SG3. Please contact us for a free, no obligation quote and competi...
From £52,016
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £52,344
Need to find an Extension Builder near you for all your extension buildering work?
Greg-Bud provides a local, trusted extension buildering ...
From £52,432
Platinum Electrics is a Branch off Platinum Premier Projects who deal in all types of construction projects. Platinum Electrics are based in London...
From £52,112
JJSR Construction Ltd is an established and experienced local extension builder in SG3. Please contact us for a free, no obligation quote and compe...
From £51,920
NISUP BUILDING SERVICES Company specializes in the domestic and commercial building industry :1. Refurbishm...

Mansard loft conversions range from the cheapest installation of £51,456 (Rite Builders based in LU1) to the dearest of around £53,584 (Propello based in E17).
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 SG3 by posting a job with HaMuch and we'll send it to extension builders in SG3.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Stevenage | £44 | £282 |
| Build A Mansard Loft Conversion near Welwyn Garden City | £42 | £268 |
| Build A Mansard Loft Conversion near Hertford | £46 | £289 |
| Build A Mansard Loft Conversion near Hitchin | £43 | £283 |
| Build A Mansard Loft Conversion near East Hertfordshire | £44 | £289 |
| Build A Mansard Loft Conversion near North Hertfordshire | £44 | £283 |
| Build A Mansard Loft Conversion near Hatfield | £64 | £283 |
| Build A Mansard Loft Conversion near Ware | £47 | £296 |
| Build A Mansard Loft Conversion near Harpenden | £86 | £315 |
| Build A Mansard Loft Conversion near Letchworth | £44 | £283 |
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 - £17,753

Two storey extension - £88,379

Build a timber frame extension - £26,253

Build a swimming pool - £81,253

Single storey extension - £60,056

Side return extension - £44,344

Install an RSJ - £2,453

Outbuilding - £10,253

Build a Mansard loft conversion - £52,253

Loft conversion - £36,120

Build a kitchen extension - £42,253

Hip to gable loft conversion - £42,253

Granny annexe - £87,253

Garden office - £10,253

Convert a Garage - £16,253

Garage - £18,753

Build a flat roof extension - £22,253

Build a dormer loft conversion - £42,253

Concrete foundations - £6,503

Convert a bungalow loft - £29,253

Convert a basement - £40,344