From £21,880
Relax... you have found a reliable extension builder in OX44. JOHN BURDER CONSTRUCTION LIMIT is a friendly and reliable company based in OX44 who c...
From £22,352
Draisey is an established extension buildering business in OX44. We come highly recommended and provide competitive quotes for your work.
From £21,992
Need to find an Extension Builder near you for all your extension buildering work?
Brian Watts Partners Ltd provides a local, trusted exten...
From £21,880
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,216
Need to find an Extension Builder near you for all your extension buildering work?
BA Knott Oxford Ltd provides a local, trusted extension ...
From £21,856
AJC PROJECT SERVICES Ltd is an established and experienced local extension builder in OX44. Please contact us for a free, no obligation quote and c...
From £22,192
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £20,016
Trusted and professional extension builder in OX44. Experienced in all extension buildering work and keeping within budget and on quote. Beaumont D...
From £22,096
Trusted and professional extension builder in OX44. Experienced in all extension buildering work and keeping within budget and on quote. E.N.K. Con...
From £22,032
CROWN CONSTRUCTION is an established extension buildering business in OX44. We come highly recommended and provide competitive quotes for your work...

A flat roof extension ranges from the cheapest of £20,016 (Beaumont Design & Build Ltd based in OX4) to the dearest of £22,352 (Draisey based in ox33), 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 OX44 by posting a job with HaMuch. We'll send it to extension builders in OX44.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near South Oxfordshire | £36 | £253 |
| Build A Flat Roof Extension near Oxford | £37 | £261 |
| Build A Flat Roof Extension near Abingdon-on-Thames | £35 | £258 |
| Build A Flat Roof Extension near Didcot | £36 | £266 |
| Build A Flat Roof Extension near Cherwell | £35 | £249 |
| Build A Flat Roof Extension near Bicester | £35 | £249 |
| Build A Flat Roof Extension near Wycombe | £39 | £271 |
| Build A Flat Roof Extension near Aylesbury | £42 | £270 |
| Build A Flat Roof Extension near Vale of White Horse | £36 | £271 |
| Build A Flat Roof Extension near High Wycombe | £39 | £272 |
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 - £17,351

Two storey extension - £87,777

Build a timber frame extension - £25,851

Build a swimming pool - £80,851

Single storey extension - £52,024

Side return extension - £39,826

Install an RSJ - £2,051

Outbuilding - £9,851

Build a Mansard loft conversion - £51,851

Loft conversion - £32,355

Build a kitchen extension - £41,851

Hip to gable loft conversion - £41,851

Granny annexe - £86,851

Garden office - £9,851

Convert a Garage - £15,851

Garage - £18,351

Build a flat roof extension - £21,851

Build a dormer loft conversion - £41,851

Concrete foundations - £6,101

Convert a bungalow loft - £28,851

Convert a basement - £35,826