From £41,936
Plumbing, painting exterior, interior, extensions, plastering, skiming, carpeting, Flooring, you can ask us ..
From £43,584
Propello is an established and experienced local extension builder in AL10. Please contact us for a free, no obligation quote and competitive rate...
From £41,456
we are very efficient in our work.and make sure our client is one 100% satisfied with our work.
From £42,456
A.J Builders is an established and experienced local extension builder in AL10. Please contact us for a free, no obligation quote and competitive r...
From £42,272
Top Notch Tradesmen is an established and experienced local extension builder in AL10. Please contact us for a free, no obligation quote and compet...
From £42,016
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £42,344
Need to find an Extension Builder near you for all your extension buildering work?
Greg-Bud provides a local, trusted extension buildering ...
From £42,432
Krystian Wojasiewicz is a trusted extension builder serving customers in AL10 and the surrounding area. Contact us to today to get a competitive qu...
From £42,432
Platinum Electrics is a Branch off Platinum Premier Projects who deal in all types of construction projects. Platinum Electrics are based in London...
From £42,112
JJSR Construction Ltd is an established and experienced local extension builder in AL10. Please contact us for a free, no obligation quote and comp...

In AL10, prices for dormer loft conversions range from £41,456 (Rite Builders based in LU1) to £43,584 (Propello based in E17), but how much your conversion costs will vary depending on the size of your property, how easy access to your roof is and what you want to use the space for.
The best way to get an accurate price is to compare quotes from extension builders in AL10. Post your job on HaMuch now and we'll put you in touch with available extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Dormer Loft Conversion near Hatfield | £64 | £283 |
| Build A Dormer Loft Conversion near Welwyn Garden City | £42 | £268 |
| Build A Dormer Loft Conversion near Potters Bar | £43 | £273 |
| Build A Dormer Loft Conversion near St Albans | £63 | £288 |
| Build A Dormer Loft Conversion near Harpenden | £86 | £315 |
| Build A Dormer Loft Conversion near Hertford | £46 | £289 |
| Build A Dormer Loft Conversion near Borehamwood | £42 | £270 |
| Build A Dormer Loft Conversion near High Barnet | £43 | £272 |
| Build A Dormer Loft Conversion near Cheshunt | £48 | £285 |
| Build A Dormer Loft Conversion near Hoddesdon | £46 | £296 |
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 - £17,804

Two storey extension - £88,456

Build a timber frame extension - £26,304

Build a swimming pool - £81,304

Single storey extension - £61,080

Side return extension - £44,920

Install an RSJ - £2,504

Outbuilding - £10,304

Build a Mansard loft conversion - £52,304

Loft conversion - £36,600

Build a kitchen extension - £42,304

Hip to gable loft conversion - £42,304

Granny annexe - £87,304

Garden office - £10,304

Convert a Garage - £16,304

Garage - £18,804

Build a flat roof extension - £22,304

Build a dormer loft conversion - £42,304

Concrete foundations - £6,554

Convert a bungalow loft - £29,304

Convert a basement - £40,920