Need an Extension Builder in Biggleswade? WILLMOTT DIXON CONSTRUCTION LI has been helping local clients (20 mile radius) with their extension build...
Need an Extension Builder in Biggleswade? R&J Building Services Ltd has been helping local clients (20 mile radius) with their extension buildering...
Need an Extension Builder in Biggleswade? M SPINDLER CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension builderi...
Biggleswade, SG18
TCL BUILDING SOLUTIONS LTD are here to help customers who need an Extension Builder in Biggleswade. We offer a competitive rate to complete all you...
From £88,180
James Hogbourne
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 £88,540
Experienced extension builder ready to quote for your work. Specialist Building Refurbishm is the best extension builder in Biggleswade. No obligat...
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 £88,468
Experienced extension builder ready to quote for your work. Bricklayers is the best extension builder in Biggleswade. No obligation free quotes and...
From £88,252
Relax... you have found a reliable extension builder in Biggleswade. Imogen Jack is a friendly and reliable company based in Biggleswade who consid...

Costs range from £87,772 (R&J Building Services Ltd based in SG17) to £88,732 (M SPINDLER CONSTRUCTION LTD based in SG6), 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 | £41 | £268 |
| Two Storey Extension near Letchworth | £44 | £283 |
| Two Storey Extension near North Hertfordshire | £44 | £283 |
| Two Storey Extension near Kempston | £44 | £273 |
| Two Storey Extension near South Bedfordshire | £45 | £278 |
| Two Storey Extension near Bedford | £45 | £278 |
| Two Storey Extension near Mid Bedfordshire | £42 | £276 |
| Two Storey Extension near Ampthill | £38 | £258 |
| Two Storey Extension near St Neots | £51 | £318 |
| Two Storey Extension near Hitchin | £43 | £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 - £17,730

Two storey extension - £88,344

Build a timber frame extension - £26,230

Build a swimming pool - £81,230

Single storey extension - £59,592

Side return extension - £44,083

Install an RSJ - £2,430

Outbuilding - £10,230

Build a Mansard loft conversion - £52,230

Loft conversion - £35,903

Build a kitchen extension - £42,230

Hip to gable loft conversion - £42,230

Granny annexe - £87,230

Garden office - £10,230

Convert a Garage - £16,230

Garage - £18,730

Build a flat roof extension - £22,230

Build a dormer loft conversion - £42,230

Concrete foundations - £6,480

Convert a bungalow loft - £29,230

Convert a basement - £40,083