From £21,984
Lambert Home Builds is a trusted extension builder serving customers in Holton and the surrounding area. Contact us to today to get a competitive q...
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 £22,112
JASON SHARP SHARP BUILDERS is a trusted extension builder serving customers in Holton and the surrounding area. Contact us to today to get a compet...
From £22,200
The business can carry out all aspects of building work:- single or double storey extensions- kitchen and bathroom installations- p...
From £22,216
Experienced extension builder ready to quote for your work. DRC Construction is the best extension builder in Holton. No obligation free quotes and...
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 £22,128
Relax... you have found a reliable extension builder in Holton. CHF CONSTRUCTION is a friendly and reliable company based in Holton who consider no...
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 £22,096
Relax... you have found a reliable extension builder in Holton. Building High Wycombe is a friendly and reliable company based in Holton who consid...
From £22,040
Mitchell & Co Building & Renovations Ltd is an established extension buildering business in Holton. We come highly recommended and provide competit...

A flat roof extension ranges from the cheapest of £21,984 (Lambert Home Builds based in OX2) to the dearest of £22,216 (DRC Construction based in OX14), 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 Holton by posting a job with HaMuch. We'll send it to extension builders in Holton.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| 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 South Oxfordshire | £36 | £253 |
| Build A Flat Roof Extension near Cherwell | £35 | £249 |
| Build A Flat Roof Extension near Bicester | £35 | £249 |
| Build A Flat Roof Extension near Didcot | £36 | £266 |
| Build A Flat Roof Extension near Aylesbury Vale | £36 | £246 |
| Build A Flat Roof Extension near Aylesbury | £42 | £270 |
| Build A Flat Roof Extension near Witney | £32 | £244 |
| Build A Flat Roof Extension near Wycombe | £39 | £271 |
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 - £17,638

Two storey extension - £88,206

Build a timber frame extension - £26,138

Build a swimming pool - £81,138

Single storey extension - £57,752

Side return extension - £43,048

Install an RSJ - £2,338

Outbuilding - £10,138

Build a Mansard loft conversion - £52,138

Loft conversion - £35,040

Build a kitchen extension - £42,138

Hip to gable loft conversion - £42,138

Granny annexe - £87,138

Garden office - £10,138

Convert a Garage - £16,138

Garage - £18,638

Build a flat roof extension - £22,138

Build a dormer loft conversion - £42,138

Concrete foundations - £6,388

Convert a bungalow loft - £29,138

Convert a basement - £39,048