From £33,150
Plumbing, painting exterior, interior, extensions, plastering, skiming, carpeting, Flooring, you can ask us ..
From £48,600
Propello is an established and experienced local extension builder in SG3. Please contact us for a free, no obligation quote and competitive rates...
From £28,650
we are very efficient in our work.and make sure our client is one 100% satisfied with our work.
From £38,025
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 £36,300
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 £33,900
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £36,975
Need to find an Extension Builder near you for all your extension buildering work?
Greg-Bud provides a local, trusted extension buildering ...
From £37,800
Platinum Electrics is a Branch off Platinum Premier Projects who deal in all types of construction projects. Platinum Electrics are based in London...
From £34,800
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 £33,000
NISUP BUILDING SERVICES Company specializes in the domestic and commercial building industry :1. Refurbishm...

Comparing extension builders estimates for Loft conversion gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost of a loft conversion in SG3 by posting your job to extension builders in SG3.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Loft Conversion near Stevenage | £44 | £282 |
| Loft Conversion near Welwyn Garden City | £42 | £268 |
| Loft Conversion near Hertford | £46 | £289 |
| Loft Conversion near Hitchin | £43 | £283 |
| Loft Conversion near East Hertfordshire | £44 | £289 |
| Loft Conversion near North Hertfordshire | £44 | £283 |
| Loft Conversion near Hatfield | £64 | £283 |
| Loft Conversion near Ware | £47 | £296 |
| Loft Conversion near Harpenden | £86 | £315 |
| 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