From £22,008
Over 35 years experience
We are Gas Safe registered
We are Verified
We pride ourselves on great custom...
From £22,240
M&J Brickwork Ltd are a Chelmsford based Bricklaying & General Building company that operate throughout the Essex and South London...
From £22,176
Witton & Pearce Builders in Essex is a trusted extension builder serving customers in CM0 and the surrounding area. Contact us to today to get a co...
From £21,456
Experienced extension builder ready to quote for your work. Capital Roofing Ltd is the best extension builder in CM0. No obligation free quotes and...
From £22,160
Property Maintenance are here to help customers who need an Extension Builder in CM0. We offer a competitive rate to complete all your extension bu...
From £22,360
Need an Extension Builder in CM0? Ellis & James Builders Limited has been helping local clients (20 mile radius) with their extension buildering jo...
From £21,680
Trusted and professional extension builder in CM0. Experienced in all extension buildering work and keeping within budget and on quote. CHAPEL BUIL...
From £21,720
Need to find an Extension Builder near you for all your extension buildering work?
JLS Building Services provides a local, trusted extensio...
From £21,896
Relax... you have found a reliable extension builder in CM0. Mikra Services is a friendly and reliable company based in CM0 who consider no job as ...
From £21,720
Need an Extension Builder in CM0? S & A Building & Landscapes Service has been helping local clients (20 mile radius) with their extension builderi...

A flat roof extension ranges from the cheapest of £21,456 (Capital Roofing Ltd based in SS13) to the dearest of £22,360 (Ellis & James Builders Limited based in SS17), 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 CM0 by posting a job with HaMuch. We'll send it to extension builders in CM0.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Maldon | £36 | £244 |
| Build A Flat Roof Extension near Southend-on-Sea | £37 | £247 |
| Build A Flat Roof Extension near Rayleigh | £39 | £252 |
| Build A Flat Roof Extension near Thundersley | £38 | £251 |
| Build A Flat Roof Extension near Witham | £36 | £240 |
| Build A Flat Roof Extension near Wickford | £39 | £255 |
| Build A Flat Roof Extension near Canvey Island | £39 | £256 |
| Build A Flat Roof Extension near Basildon | £39 | £251 |
| Build A Flat Roof Extension near Colchester | £34 | £232 |
| Build A Flat Roof Extension near Clacton-on-Sea | £31 | £230 |
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 - £17,442

Two storey extension - £87,912

Build a timber frame extension - £25,942

Build a swimming pool - £80,942

Single storey extension - £53,832

Side return extension - £40,843

Install an RSJ - £2,142

Outbuilding - £9,942

Build a Mansard loft conversion - £51,942

Loft conversion - £33,203

Build a kitchen extension - £41,942

Hip to gable loft conversion - £41,942

Granny annexe - £86,942

Garden office - £9,942

Convert a Garage - £15,942

Garage - £18,442

Build a flat roof extension - £21,942

Build a dormer loft conversion - £41,942

Concrete foundations - £6,192

Convert a bungalow loft - £28,942

Convert a basement - £36,843