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 SS2 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 SS2. No obligation free quotes and...
From £22,272
P OUGHTON BUILDING is an established and experienced local extension builder in SS2. Please contact us for a free, no obligation quote and competit...
From £22,360
Need an Extension Builder in SS2? Ellis & James Builders Limited has been helping local clients (20 mile radius) with their extension buildering jo...
From £22,160
Property Maintenance are here to help customers who need an Extension Builder in SS2. We offer a competitive rate to complete all your extension bu...
From £21,056
35 years in the trade can Lay bricks plaster roofing wall and floor tiling
From £22,008
Over 35 years experience
We are Gas Safe registered
We are Verified
We pride ourselves on great custom...
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 £22,080
We are a family run business with over 30 years experience in the roofing industry. We pride ourselves on our high standards of workmanship and cus...

A flat roof extension ranges from the cheapest of £21,056 (S MEGSON CONSTRUCTION based in CT5) 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 SS2 by posting a job with HaMuch. We'll send it to extension builders in SS2.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| 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 Canvey Island | £39 | £256 |
| Build A Flat Roof Extension near Wickford | £39 | £255 |
| Build A Flat Roof Extension near Basildon | £39 | £251 |
| Build A Flat Roof Extension near Stanford-le-Hope | £40 | £254 |
| Build A Flat Roof Extension near Billericay | £38 | £248 |
| Build A Flat Roof Extension near Maldon | £36 | £244 |
| Build A Flat Roof Extension near Gillingham | £39 | £253 |
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 - £17,453

Two storey extension - £87,929

Build a timber frame extension - £25,953

Build a swimming pool - £80,953

Single storey extension - £54,056

Side return extension - £40,969

Install an RSJ - £2,153

Outbuilding - £9,953

Build a Mansard loft conversion - £51,953

Loft conversion - £33,308

Build a kitchen extension - £41,953

Hip to gable loft conversion - £41,953

Granny annexe - £86,953

Garden office - £9,953

Convert a Garage - £15,953

Garage - £18,453

Build a flat roof extension - £21,953

Build a dormer loft conversion - £41,953

Concrete foundations - £6,203

Convert a bungalow loft - £28,953

Convert a basement - £36,969