Experienced extension builder ready to quote for your work. MATURECOURT BUILDERS LTD is the best extension builder in CO6. No obligation free quote...
From £21,976
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,088
R Best Building Services are here to help customers who need an Extension Builder in CO6. We offer a competitive rate to complete all your extensio...

A flat roof extension ranges from the cheapest of £21,480 (JLP CAPENTRY & CONSTRUCTION based in CO3) to the dearest of £22,088 (R Best Building Services based in CO3), 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 CO6 by posting a job with HaMuch. We'll send it to extension builders in CO6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Colchester | £34 | £232 |
| Build A Flat Roof Extension near Sudbury | £34 | £229 |
| Build A Flat Roof Extension near Witham | £36 | £240 |
| Build A Flat Roof Extension near Braintree | £37 | £247 |
| Build A Flat Roof Extension near Maldon | £36 | £244 |
| Build A Flat Roof Extension near Tendring | £31 | £226 |
| Build A Flat Roof Extension near Ipswich | £33 | £235 |
| Build A Flat Roof Extension near Clacton-on-Sea | £31 | £230 |
| Build A Flat Roof Extension near Haverhill | £37 | £260 |
| Build A Flat Roof Extension near Chelmsford | £38 | £258 |
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 - £17,352

Two storey extension - £87,778

Build a timber frame extension - £25,852

Build a swimming pool - £80,852

Single storey extension - £52,040

Side return extension - £39,835

Install an RSJ - £2,052

Outbuilding - £9,852

Build a Mansard loft conversion - £51,852

Loft conversion - £32,363

Build a kitchen extension - £41,852

Hip to gable loft conversion - £41,852

Granny annexe - £86,852

Garden office - £9,852

Convert a Garage - £15,852

Garage - £18,352

Build a flat roof extension - £21,852

Build a dormer loft conversion - £41,852

Concrete foundations - £6,102

Convert a bungalow loft - £28,852

Convert a basement - £35,835