From £88,204
Trusted and professional extension builder in SG19. Experienced in all extension buildering work and keeping within budget and on quote. J. WATSON ...
From £88,252
Relax... you have found a reliable extension builder in SG19. Imogen Jack is a friendly and reliable company based in SG19 who consider no job as t...
From £88,396
Relax... you have found a reliable extension builder in SG19. Applewood Design and Build Ltd is a friendly and reliable company based in SG19 who c...
From £88,216
A.S. OHM Electrics Ltd is a trusted extension builder serving customers in SG19 and the surrounding area. Contact us to today to get a competitive ...
From £88,288
TCL BUILDING SOLUTIONS LTD are here to help customers who need an Extension Builder in SG19. We offer a competitive rate to complete all your exten...
From £88,672
JP Building Limited are here to help customers who need an Extension Builder in SG19. We offer a competitive rate to complete all your extension bu...
From £88,324
M OLIVER BUILDING is an established and experienced local extension builder in SG19. Please contact us for a free, no obligation quote and competit...
From £87,772
Need an Extension Builder in SG19? R&J Building Services Ltd has been helping local clients (20 mile radius) with their extension buildering jobs f...
From £88,180
For more than 10 years, North Hertfordshire Construction LTD have been the name you can trust when it comes to building and development! We are kno...
From £88,468
Experienced extension builder ready to quote for your work. Bricklayers is the best extension builder in SG19. No obligation free quotes and many h...

Costs range from £87,772 (R&J Building Services Ltd based in SG17) to £88,672 (JP Building Limited based in PE19), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
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| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near Biggleswade | £35 | £230 |
| Two Storey Extension near St Neots | £42 | £256 |
| Two Storey Extension near Bedford | £38 | £233 |
| Two Storey Extension near South Bedfordshire | £38 | £233 |
| Two Storey Extension near Kempston | £37 | £230 |
| Two Storey Extension near Letchworth | £37 | £239 |
| Two Storey Extension near South Cambridgeshire | £37 | £258 |
| Two Storey Extension near North Hertfordshire | £37 | £239 |
| Two Storey Extension near Ampthill | £31 | £214 |
| Two Storey Extension near Mid Bedfordshire | £34 | £225 |
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 - £17,685

Two storey extension - £88,277

Build a timber frame extension - £26,185

Build a swimming pool - £81,185

Single storey extension - £58,696

Side return extension - £43,579

Install an RSJ - £2,385

Outbuilding - £10,185

Build a Mansard loft conversion - £52,185

Loft conversion - £35,483

Build a kitchen extension - £42,185

Hip to gable loft conversion - £42,185

Granny annexe - £87,185

Garden office - £10,185

Convert a Garage - £16,185

Garage - £18,685

Build a flat roof extension - £22,185

Build a dormer loft conversion - £42,185

Concrete foundations - £6,435

Convert a bungalow loft - £29,185

Convert a basement - £39,579