From £21,920
Inspire Carpentry and Construction Ltd is an established and experienced local extension builder in CB2. Please contact us for a free, no obligatio...
From £22,160
Silverwood Construction (Cambridge) Ltd are here to help customers who need an Extension Builder in CB2. We offer a competitive rate to complete al...
From £22,152
Relax... you have found a reliable extension builder in CB2. CROWNBUILD is a friendly and reliable company based in CB2 who consider no job as too ...
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 £22,072
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,456
MDH Construction is an established and experienced local extension builder in CB2. Please contact us for a free, no obligation quote and competitiv...
From £23,360
Experienced extension builder ready to quote for your work. ALLIED BUILDING ASSOCIATES LTD is the best extension builder in CB2. No obligation free...
From £22,400
D C Salsbury Builders is an established and experienced local extension builder in CB2. Please contact us for a free, no obligation quote and compe...
From £22,152
Need to find an Extension Builder near you for all your extension buildering work?
JKL Construction & Carpentry Ltd provides a local, trust...
From £22,088
Eric Handyman- builder is an established and experienced local extension builder in CB2. Please contact us for a free, no obligation quote and comp...

A flat roof extension ranges from the cheapest of £21,920 (Inspire Carpentry and Construction Ltd based in CB24) to the dearest of £23,360 (ALLIED BUILDING ASSOCIATES LTD based in CB22), 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 CB2 by posting a job with HaMuch. We'll send it to extension builders in CB2.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Cambridge | £38 | £271 |
| Build A Flat Roof Extension near South Cambridgeshire | £43 | £305 |
| Build A Flat Roof Extension near Haverhill | £37 | £260 |
| Build A Flat Roof Extension near Ely | £40 | £279 |
| Build A Flat Roof Extension near St Neots | £51 | £318 |
| Build A Flat Roof Extension near Huntingdon | £38 | £284 |
| Build A Flat Roof Extension near Biggleswade | £41 | £268 |
| Build A Flat Roof Extension near Letchworth | £44 | £283 |
| Build A Flat Roof Extension near East Hertfordshire | £44 | £289 |
| Build A Flat Roof Extension near North Hertfordshire | £44 | £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 - £17,803

Two storey extension - £88,455

Build a timber frame extension - £26,303

Build a swimming pool - £81,303

Single storey extension - £61,064

Side return extension - £44,911

Install an RSJ - £2,503

Outbuilding - £10,303

Build a Mansard loft conversion - £52,303

Loft conversion - £36,593

Build a kitchen extension - £42,303

Hip to gable loft conversion - £42,303

Granny annexe - £87,303

Garden office - £10,303

Convert a Garage - £16,303

Garage - £18,803

Build a flat roof extension - £22,303

Build a dormer loft conversion - £42,303

Concrete foundations - £6,553

Convert a bungalow loft - £29,303

Convert a basement - £40,911