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Need an Extension Builder in Cherwell? K C CONSTRUCTION has been helping local clients (20 mile radius) with their extension buildering jobs for ma...
SJ Groundworks & Building Ltd is a trusted extension builder serving customers in Cherwell and the surrounding area. Contact us to today to get a c...
R AND J CONSTRUCTION is an established and experienced local extension builder in Cherwell. Please contact us for a free, no obligation quote and c...
From £21,816
Trusted and professional extension builder in Cherwell. Experienced in all extension buildering work and keeping within budget and on quote. P GEOR...
From £21,696
Peter Bunce
Need to find an Extension Builder near you for all your extension buildering work?
1994 provides a local, trusted extension buildering serv...
From £22,096
KEITH COOK CONSTRUCTION LIMITED are here to help customers who need an Extension Builder in Cherwell. We offer a competitive rate to complete all y...
From £22,168
Experienced extension builder ready to quote for your work. Leon Construction OC Ltd is the best extension builder in Cherwell. No obligation free ...
From £22,376
Options Home Extensions (Oxfordshire) in Oxfordshire are one of very few companies in the area who specialise in only home extensions. There are ma...
From £21,952
Inspired Restorations offer a range of services that cover all aspects of property renovations and maintenance. Whether you require a full renovati...
From £22,088
Trusted and professional extension builder in Cherwell. Experienced in all extension buildering work and keeping within budget and on quote. Macfar...

A flat roof extension ranges from the cheapest of £21,584 (SJ Groundworks & Building Ltd based in OX26) to the dearest of £22,376 (Options Home Extensions (Oxfordshire) based in OX26), 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 Cherwell by posting a job with HaMuch. We'll send it to extension builders in Cherwell.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Cherwell | £35 | £249 |
| Build A Flat Roof Extension near Bicester | £35 | £249 |
| Build A Flat Roof Extension near Oxford | £38 | £270 |
| Build A Flat Roof Extension near Aylesbury Vale | £36 | £246 |
| Build A Flat Roof Extension near Banbury | £33 | £239 |
| Build A Flat Roof Extension near Witney | £32 | £244 |
| Build A Flat Roof Extension near Abingdon-on-Thames | £35 | £258 |
| Build A Flat Roof Extension near Aylesbury | £42 | £270 |
| Build A Flat Roof Extension near South Oxfordshire | £36 | £253 |
| Build A Flat Roof Extension near Didcot | £36 | £266 |
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 - £17,482

Two storey extension - £87,974

Build a timber frame extension - £25,982

Build a swimming pool - £80,982

Single storey extension - £54,648

Side return extension - £41,302

Install an RSJ - £2,182

Outbuilding - £9,982

Build a Mansard loft conversion - £51,982

Loft conversion - £33,585

Build a kitchen extension - £41,982

Hip to gable loft conversion - £41,982

Granny annexe - £86,982

Garden office - £9,982

Convert a Garage - £15,982

Garage - £18,482

Build a flat roof extension - £21,982

Build a dormer loft conversion - £41,982

Concrete foundations - £6,232

Convert a bungalow loft - £28,982

Convert a basement - £37,302