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SJ Groundworks & Building Ltd is a trusted extension builder serving customers in OX26 and the surrounding area. Contact us to today to get a compe...
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 £22,376
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 £22,168
Experienced extension builder ready to quote for your work. Leon Construction OC Ltd is the best extension builder in OX26. No obligation free quot...

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 OX26 by posting a job with HaMuch. We'll send it to extension builders in OX26.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Bicester | £35 | £249 |
| Build A Flat Roof Extension near Cherwell | £35 | £249 |
| Build A Flat Roof Extension near Aylesbury Vale | £36 | £246 |
| Build A Flat Roof Extension near Oxford | £38 | £270 |
| Build A Flat Roof Extension near Banbury | £33 | £239 |
| Build A Flat Roof Extension near Aylesbury | £42 | £270 |
| 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 South Oxfordshire | £36 | £253 |
| Build A Flat Roof Extension near Bletchley | £39 | £265 |
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 - £17,456

Two storey extension - £87,934

Build a timber frame extension - £25,956

Build a swimming pool - £80,956

Single storey extension - £54,120

Side return extension - £41,005

Install an RSJ - £2,156

Outbuilding - £9,956

Build a Mansard loft conversion - £51,956

Loft conversion - £33,338

Build a kitchen extension - £41,956

Hip to gable loft conversion - £41,956

Granny annexe - £86,956

Garden office - £9,956

Convert a Garage - £15,956

Garage - £18,456

Build a flat roof extension - £21,956

Build a dormer loft conversion - £41,956

Concrete foundations - £6,206

Convert a bungalow loft - £28,956

Convert a basement - £37,005