From £22,312
skilled worker who specializes in completing a wide range of building and renovation projects
From £22,616
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in Pitsea and the surrounding area. Contact us to today to get a c...
From £22,240
M&J Brickwork Ltd are a Chelmsford based Bricklaying & General Building company that operate throughout the Essex and South London...
From £22,200
Relax... you have found a reliable extension builder in Pitsea. Derryard Construction Ltd is a friendly and reliable company based in Pitsea who co...
From £21,968
B J CULLEN BUILDERS are here to help customers who need an Extension Builder in Pitsea. We offer a competitive rate to complete all your extension ...
From £22,032
Relax... you have found a reliable extension builder in Pitsea. Major Building Contractors Ltd is a friendly and reliable company based in Pitsea w...
From £22,184
Need to find an Extension Builder near you for all your extension buildering work?
Sz Builders provides a local, trusted extension builderi...
From £22,712
Experienced extension builder ready to quote for your work. Render is the best extension builder in Pitsea. No obligation free quotes and many happ...
From £21,896
Experienced extension builder ready to quote for your work. Jhon is the best extension builder in Pitsea. No obligation free quotes and many happy ...
From £21,880
Member since August 2025
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

A flat roof extension ranges from the cheapest of £21,880 (Can design and Construction based in Ig11) to the dearest of £22,712 (Render based in IG1), 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 Pitsea by posting a job with HaMuch. We'll send it to extension builders in Pitsea.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Basildon | £39 | £251 |
| Build A Flat Roof Extension near Wickford | £39 | £255 |
| Build A Flat Roof Extension near Thundersley | £38 | £251 |
| Build A Flat Roof Extension near Rayleigh | £39 | £252 |
| Build A Flat Roof Extension near Billericay | £38 | £248 |
| Build A Flat Roof Extension near Stanford-le-Hope | £40 | £254 |
| Build A Flat Roof Extension near Canvey Island | £39 | £256 |
| Build A Flat Roof Extension near Brentwood | £39 | £255 |
| Build A Flat Roof Extension near Southend-on-Sea | £37 | £247 |
| Build A Flat Roof Extension near Thurrock | £41 | £260 |
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 - £17,704

Two storey extension - £88,306

Build a timber frame extension - £26,204

Build a swimming pool - £81,204

Single storey extension - £59,080

Side return extension - £43,795

Install an RSJ - £2,404

Outbuilding - £10,204

Build a Mansard loft conversion - £52,204

Loft conversion - £35,663

Build a kitchen extension - £42,204

Hip to gable loft conversion - £42,204

Granny annexe - £87,204

Garden office - £10,204

Convert a Garage - £16,204

Garage - £18,704

Build a flat roof extension - £22,204

Build a dormer loft conversion - £42,204

Concrete foundations - £6,454

Convert a bungalow loft - £29,204

Convert a basement - £39,795