From £22,176
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,320
Essex Elite Services is a trusted extension builder serving customers in Harold Wood and the surrounding area. Contact us to today to get a competi...
From £22,096
Renov8 Create are here to help customers who need an Extension Builder in Harold Wood. We offer a competitive rate to complete all your extension b...
From £22,200
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
From £22,272
Our building services company Harris Murray Carpentry & Building Ltd has been helping customers in Brentwood, Billericay, and Essex by providing pr...
From £22,024
Need to find an Extension Builder near you for all your extension buildering work?
D Weaver Builders Ltd provides a local, trusted extensio...
From £22,120
We offer good standard and professional services, with competitive prices and long warrantees
From £22,176
Experienced extension builder ready to quote for your work. PMD Construction is the best extension builder in Harold Wood. No obligation free quote...
From £21,904
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
From £22,224
Need to find an Extension Builder near you for all your extension buildering work?
THAMESLINK BUILDING SRVCS LTD provides a local, trusted ...

A flat roof extension ranges from the cheapest of £21,904 (Line Up Brickwork Ltd based in CM13) to the dearest of £22,320 (Essex Elite Services based in CM14), 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 Harold Wood by posting a job with HaMuch. We'll send it to extension builders in Harold Wood.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Brentwood | £39 | £255 |
| Build A Flat Roof Extension near Romford | £45 | £275 |
| Build A Flat Roof Extension near Billericay | £38 | £248 |
| Build A Flat Roof Extension near South Ockendon | £58 | £276 |
| Build A Flat Roof Extension near Basildon | £39 | £251 |
| Build A Flat Roof Extension near Chafford Hundred | £41 | £261 |
| Build A Flat Roof Extension near Thurrock | £41 | £260 |
| Build A Flat Roof Extension near Stanford-le-Hope | £40 | £254 |
| Build A Flat Roof Extension near Grays | £41 | £261 |
| Build A Flat Roof Extension near Loughton | £44 | £273 |
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 - £17,651

Two storey extension - £88,227

Build a timber frame extension - £26,151

Build a swimming pool - £81,151

Single storey extension - £58,024

Side return extension - £43,201

Install an RSJ - £2,351

Outbuilding - £10,151

Build a Mansard loft conversion - £52,151

Loft conversion - £35,168

Build a kitchen extension - £42,151

Hip to gable loft conversion - £42,151

Granny annexe - £87,151

Garden office - £10,151

Convert a Garage - £16,151

Garage - £18,651

Build a flat roof extension - £22,151

Build a dormer loft conversion - £42,151

Concrete foundations - £6,401

Convert a bungalow loft - £29,151

Convert a basement - £39,201