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 SG3. Please contact us for a free, no obligation quote and competitive rates...
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 SG3. Please contact us for a free, no obligation quote and competitive ra...
From £42,272
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 £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
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 SG3. Please contact us for a free, no obligation quote and compe...
From £41,920
NISUP BUILDING SERVICES Company specializes in the domestic and commercial building industry :1. Refurbishm...

In SG3, 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 SG3. 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 Stevenage | £44 | £282 |
| Build A Dormer Loft Conversion near Welwyn Garden City | £42 | £268 |
| Build A Dormer Loft Conversion near Hertford | £46 | £289 |
| Build A Dormer Loft Conversion near Hitchin | £43 | £283 |
| Build A Dormer Loft Conversion near East Hertfordshire | £44 | £289 |
| Build A Dormer Loft Conversion near North Hertfordshire | £44 | £283 |
| Build A Dormer Loft Conversion near Hatfield | £64 | £283 |
| Build A Dormer Loft Conversion near Ware | £47 | £296 |
| Build A Dormer Loft Conversion near Harpenden | £86 | £315 |
| Build A Dormer 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