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Select your affordable CB8 extension builder
Relax... you have found a reliable extension builder in CB8. Adams & Eden Restoration is a friendly and reliable company based in CB8 who consider ...
From £22,120
John Kirk Building Ltd is an established extension buildering business in CB8. We come highly recommended and provide competitive quotes for your w...
From £22,168
Experienced extension builder ready to quote for your work. J&G HARDING BUILDING SERVICES is the best extension builder in CB8. No obligation free ...
From £21,992
Trusted and professional extension builder in CB8. Experienced in all extension buildering work and keeping within budget and on quote. Doug Misson...

A flat roof extension ranges from the cheapest of £21,992 (Doug Misson Construction based in CB8) to the dearest of £22,560 (Adams & Eden Restoration based in Cb8), 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 CB8 by posting a job with HaMuch. We'll send it to extension builders in CB8.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Haverhill | £37 | £260 |
| Build A Flat Roof Extension near Ely | £40 | £279 |
| Build A Flat Roof Extension near Bury St Edmunds | £34 | £251 |
| Build A Flat Roof Extension near Cambridge | £41 | £275 |
| Build A Flat Roof Extension near South Cambridgeshire | £50 | £315 |
| Build A Flat Roof Extension near Sudbury | £34 | £229 |
| Build A Flat Roof Extension near Thetford | £42 | £277 |
| Build A Flat Roof Extension near Braintree | £37 | £247 |
| Build A Flat Roof Extension near Stowmarket | £30 | £221 |
| Build A Flat Roof Extension near Huntingdon | £38 | £284 |
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 - £17,710

Two storey extension - £88,315

Build a timber frame extension - £26,210

Build a swimming pool - £81,210

Single storey extension - £59,200

Side return extension - £43,863

Install an RSJ - £2,410

Outbuilding - £10,210

Build a Mansard loft conversion - £52,210

Loft conversion - £35,719

Build a kitchen extension - £42,210

Hip to gable loft conversion - £42,210

Granny annexe - £87,210

Garden office - £10,210

Convert a Garage - £16,210

Garage - £18,710

Build a flat roof extension - £22,210

Build a dormer loft conversion - £42,210

Concrete foundations - £6,460

Convert a bungalow loft - £29,210

Convert a basement - £39,863