Need an Extension Builder in SG17? R&J Building Services Ltd has been helping local clients (20 mile radius) with their extension buildering jobs f...
TCL BUILDING SOLUTIONS LTD are here to help customers who need an Extension Builder in SG17. We offer a competitive rate to complete all your exten...
From £88,540
Experienced extension builder ready to quote for your work. Specialist Building Refurbishm is the best extension builder in SG17. No obligation fre...
From £88,408
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £88,492
Our building services company David Douglas Developments has over 30 years’ experience, and built an established reputation of providing customer...
From £88,828
Blue Conker are dedicated to creating spaces for you to enjoy living. From the planning stages through to the finishing touches, our team of profes...

Costs range from £87,772 (R&J Building Services Ltd based in SG17) to £88,828 (Blue Conker Ltd based in MK45), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
Post your job on HaMuch and we'll send it to extension builders to SG17.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near Biggleswade | £41 | £268 |
| Two Storey Extension near Letchworth | £44 | £283 |
| Two Storey Extension near Mid Bedfordshire | £42 | £276 |
| Two Storey Extension near Ampthill | £38 | £258 |
| Two Storey Extension near North Hertfordshire | £44 | £283 |
| Two Storey Extension near Hitchin | £43 | £283 |
| Two Storey Extension near Kempston | £44 | £273 |
| Two Storey Extension near Bedford | £45 | £278 |
| Two Storey Extension near South Bedfordshire | £45 | £278 |
| Two Storey Extension near Stevenage | £44 | £282 |
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 - £17,759

Two storey extension - £88,388

Build a timber frame extension - £26,259

Build a swimming pool - £81,259

Single storey extension - £60,173

Side return extension - £44,410

Install an RSJ - £2,459

Outbuilding - £10,259

Build a Mansard loft conversion - £52,259

Loft conversion - £36,175

Build a kitchen extension - £42,259

Hip to gable loft conversion - £42,259

Granny annexe - £87,259

Garden office - £10,259

Convert a Garage - £16,259

Garage - £18,759

Build a flat roof extension - £22,259

Build a dormer loft conversion - £42,259

Concrete foundations - £6,509

Convert a bungalow loft - £29,259

Convert a basement - £40,410