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Select your affordable Biggleswade extension builder
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? WILLMOTT DIXON CONSTRUCTION LI has been helping local clients (20 mile radius) with their extension build...
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 £22,120
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 £22,360
Experienced extension builder ready to quote for your work. Specialist Building Refurbishm is the best extension builder in Biggleswade. No obligat...
From £22,272
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,328
Our building services company David Douglas Developments has over 30 years’ experience, and built an established reputation of providing customer...
From £22,168
Relax... you have found a reliable extension builder in Biggleswade. Imogen Jack is a friendly and reliable company based in Biggleswade who consid...
From £22,136
Trusted and professional extension builder in Biggleswade. Experienced in all extension buildering work and keeping within budget and on quote. J. ...

A flat roof extension ranges from the cheapest of £21,848 (R&J Building Services Ltd based in SG17) to the dearest of £22,488 (M SPINDLER CONSTRUCTION LTD based in SG6), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in Biggleswade by posting a job with HaMuch. We'll send it to extension builders in Biggleswade.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Biggleswade | £41 | £268 |
| Build A Flat Roof Extension near Letchworth | £44 | £283 |
| Build A Flat Roof Extension near North Hertfordshire | £44 | £283 |
| Build A Flat Roof Extension near Kempston | £44 | £273 |
| Build A Flat Roof Extension near South Bedfordshire | £45 | £278 |
| Build A Flat Roof Extension near Bedford | £45 | £278 |
| Build A Flat Roof Extension near Mid Bedfordshire | £42 | £276 |
| Build A Flat Roof Extension near Ampthill | £38 | £258 |
| Build A Flat Roof Extension near St Neots | £51 | £318 |
| Build A Flat Roof 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 - £17,712

Two storey extension - £88,318

Build a timber frame extension - £26,212

Build a swimming pool - £81,212

Single storey extension - £59,240

Side return extension - £43,885

Install an RSJ - £2,412

Outbuilding - £10,212

Build a Mansard loft conversion - £52,212

Loft conversion - £35,738

Build a kitchen extension - £42,212

Hip to gable loft conversion - £42,212

Granny annexe - £87,212

Garden office - £10,212

Convert a Garage - £16,212

Garage - £18,712

Build a flat roof extension - £22,212

Build a dormer loft conversion - £42,212

Concrete foundations - £6,462

Convert a bungalow loft - £29,212

Convert a basement - £39,885