From £25,808
BOWIE CONSTRUCTION LTD is a trusted extension builder serving customers in CB21 and the surrounding area. Contact us to today to get a competitive ...
From £26,344
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £26,216
Trusted and professional extension builder in CB21. Experienced in all extension buildering work and keeping within budget and on quote. DEBRAY BUI...
From £27,360
Experienced extension builder ready to quote for your work. ALLIED BUILDING ASSOCIATES LTD is the best extension builder in CB21. No obligation fre...
From £26,072
Relax... you have found a reliable extension builder in CB21. D Stebbings is a friendly and reliable company based in CB21 who consider no job as t...
From £25,936
TSN Consultants Ltd are here to help customers who need an Extension Builder in CB21. We offer a competitive rate to complete all your extension bu...
From £26,104
Relax... you have found a reliable extension builder in CB21. Pinnacle Construction is a friendly and reliable company based in CB21 who consider n...
From £26,224
SP-Building Services Ltd is an established and experienced local extension builder in CB21. Please contact us for a free, no obligation quote and c...
From £26,376
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £26,152
Relax... you have found a reliable extension builder in CB21. CROWNBUILD is a friendly and reliable company based in CB21 who consider no job as to...

A timber frame extension built in CB21 typically ranges from £25,808 (BOWIE CONSTRUCTION LTD based in CB21) to £27,360 (ALLIED BUILDING ASSOCIATES LTD based in CB22), but this will vary depending on the size of your extension, the design features you'd like and what your soil is like for the foundations.
Comparing extension builders estimates for building a timber frame extension gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build a timber frame extension in CB21 by posting a job with HaMuch and we'll send it to extension builders in CB21.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Timber Frame Extension near Haverhill | £37 | £260 |
| Build A Timber Frame Extension near Cambridge | £38 | £271 |
| Build A Timber Frame Extension near South Cambridgeshire | £43 | £305 |
| Build A Timber Frame Extension near Ely | £40 | £279 |
| Build A Timber Frame Extension near Sudbury | £34 | £229 |
| Build A Timber Frame Extension near Bishop's Stortford | £42 | £264 |
| Build A Timber Frame Extension near Bury St Edmunds | £34 | £251 |
| Build A Timber Frame Extension near Braintree | £37 | £247 |
| Build A Timber Frame Extension near East Hertfordshire | £44 | £289 |
| Build A Timber Frame Extension near Biggleswade | £41 | £268 |
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 - £88,389

Build a timber frame extension - £26,259

Build a swimming pool - £81,259

Single storey extension - £60,184

Side return extension - £44,416

Install an RSJ - £2,459

Outbuilding - £10,259

Build a Mansard loft conversion - £52,259

Loft conversion - £36,180

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 - £40,416