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Chris Czerwinski
About us: Buildmac Ltd is a well-established, trustworthy, reliable and professional business based in High Wycombe, covering all surrounding areas...
Relax... you have found a reliable extension builder in Wycombe Marsh. ABC Associates STRUCTURES 4 U is a friendly and reliable company based in Wy...
Need to find an Extension Builder near you for all your extension buildering work?
Loudwater Building Services provides a local, trusted ex...
Mitchell & Co Building & Renovations Ltd is an established extension buildering business in Wycombe Marsh. We come highly recommended and provide c...
B.A Ruffle Building Contractor is an established extension buildering business in Wycombe Marsh. We come highly recommended and provide competitive...
Relax... you have found a reliable extension builder in Wycombe Marsh. Building High Wycombe is a friendly and reliable company based in Wycombe Ma...
Our building services company A Iqbal Construction Ltd was established in 2018. Since then, we have been helping customers in Slough and the surrou...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Be Illuminated are here to help customers who need an Extension Builder in Wycombe Marsh. We offer a competitive rate to complete all your extensio...
Steve Knight Construction is a High Wycombe based Building Company with 38 years experience in all aspects of the Construction Industry. We are abl...

A flat roof extension ranges from the cheapest of £21,976 (A Iqbal Construction Ltd based in SL2) to the dearest of £22,392 (Jesson ladscaping and construction based in hp15), 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 Wycombe Marsh by posting a job with HaMuch. We'll send it to extension builders in Wycombe Marsh.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near High Wycombe | £39 | £272 |
| Build A Flat Roof Extension near Hazlemere | £40 | £272 |
| Build A Flat Roof Extension near Wycombe | £40 | £271 |
| Build A Flat Roof Extension near Maidenhead | £41 | £273 |
| Build A Flat Roof Extension near Gerrards Cross | £43 | £283 |
| Build A Flat Roof Extension near Chesham | £42 | £277 |
| Build A Flat Roof Extension near Slough | £42 | £272 |
| Build A Flat Roof Extension near Windsor & Maidenhead | £42 | £272 |
| Build A Flat Roof Extension near Rickmansworth | £43 | £282 |
| Build A Flat Roof Extension near Windsor | £41 | £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 - £17,693

Two storey extension - £88,289

Build a timber frame extension - £26,193

Build a swimming pool - £81,193

Single storey extension - £58,856

Side return extension - £43,669

Install an RSJ - £2,393

Outbuilding - £10,193

Build a Mansard loft conversion - £52,193

Loft conversion - £35,558

Build a kitchen extension - £42,193

Hip to gable loft conversion - £42,193

Granny annexe - £87,193

Garden office - £10,193

Convert a Garage - £16,193

Garage - £18,693

Build a flat roof extension - £22,193

Build a dormer loft conversion - £42,193

Concrete foundations - £6,443

Convert a bungalow loft - £29,193

Convert a basement - £39,669