From £52,536
Are you looking for resin driveways in North London? We are a leading builder of driveways and patios in North London. We have expertise in various...
From £52,216
Ebro Construction Group are here to help customers who need an Extension Builder in AL4. We offer a competitive rate to complete all your extension...
From £52,528
Billy Homan set up Grain Property to provide high-quality design, seamless project delivery, and a commitment to excellent communication throughout...
From £52,232
Buyerz Trading is an established and experienced local extension builder in AL4. Please contact us for a free, no obligation quote and competitive ...
From £52,024
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
From £51,984
Abalon is Western Canada’s leading foundation repair and basement waterproofing company, operating in the Edmonton area for over 40 years (50 yea...
From £52,480
Building services company Renospace was established in 2000. Since then we have been helping customers in Hertfordshire and the surrounding area by...
From £52,072
A1 Home Care Building Maintenance are here to help customers who need an Extension Builder in AL4. We offer a competitive rate to complete all your...
From £52,216
VALLEYCREST CONSTRUCTION LTD is a trusted extension builder serving customers in AL4 and the surrounding area. Contact us to today to get a competi...

Mansard loft conversions range from the cheapest installation of £51,984 (Abalon Construction based in ZZ99) to the dearest of around £52,536 (R. Newman Construction based in AL4).
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 AL4 by posting a job with HaMuch and we'll send it to extension builders in AL4.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near St Albans | £63 | £288 |
| Build A Mansard Loft Conversion near Hatfield | £64 | £283 |
| Build A Mansard Loft Conversion near Harpenden | £86 | £315 |
| Build A Mansard Loft Conversion near Welwyn Garden City | £42 | £268 |
| Build A Mansard Loft Conversion near Potters Bar | £43 | £273 |
| Build A Mansard Loft Conversion near Borehamwood | £42 | £270 |
| Build A Mansard Loft Conversion near Hemel Hempstead | £42 | £270 |
| Build A Mansard Loft Conversion near Dacorum | £42 | £269 |
| Build A Mansard Loft Conversion near Bushey | £42 | £276 |
| Build A Mansard Loft Conversion near Hertford | £46 | £289 |
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 - £17,731

Two storey extension - £88,347

Build a timber frame extension - £26,231

Build a swimming pool - £81,231

Single storey extension - £59,624

Side return extension - £44,101

Install an RSJ - £2,431

Outbuilding - £10,231

Build a Mansard loft conversion - £52,231

Loft conversion - £35,918

Build a kitchen extension - £42,231

Hip to gable loft conversion - £42,231

Granny annexe - £87,231

Garden office - £10,231

Convert a Garage - £16,231

Garage - £18,731

Build a flat roof extension - £22,231

Build a dormer loft conversion - £42,231

Concrete foundations - £6,481

Convert a bungalow loft - £29,231

Convert a basement - £40,101