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Arthur Cooper
Westerham, TN16
Experienced extension builder ready to quote for your work. J Cooper Roofing is the best extension builder in Westerham. No obligation free quotes ...
Gani Bush
Gb construction are here to help customers who need an Extension Builder in Westerham. We offer a competitive rate to complete all your extension ...
Need an Extension Builder in Westerham? RJC BUILDING SERVICES has been helping local clients (10 mile radius) with their extension buildering jobs ...
Westerham, TN16
BENCHMARK BUILDING & is a trusted extension builder serving customers in Westerham and the surrounding area. Contact us to today to get a competiti...
Relax... you have found a reliable extension builder in Westerham. UNIVERSAL CONSTRUCTION is a friendly and reliable company based in Westerham who...
Curtis Archer
Relax... you have found a reliable extension builder in Westerham. POVERSET BUILDING COMPANY is a friendly and reliable company based in Westerham ...
Relax... you have found a reliable extension builder in Westerham. L M G Building Services (London) Ltd is a friendly and reliable company based in...
Experienced extension builder ready to quote for your work. Aviemore Building Contractors Ltd is the best extension builder in Westerham. No obliga...
Vas OPetrov
QC11 LTD are here to help customers who need an Extension Builder in Westerham. We offer a competitive rate to complete all your extension builderi...
Relax... you have found a reliable extension builder in Westerham. SMC Property Maintenance is a friendly and reliable company based in Westerham w...

A flat roof extension ranges from the cheapest of £21,864 (RJC BUILDING SERVICES based in BR5) to the dearest of £22,296 (Aviemore Building Contractors Ltd based in BR3), 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 Westerham by posting a job with HaMuch. We'll send it to extension builders in Westerham.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Caterham | £43 | £271 |
| Build A Flat Roof Extension near Sevenoaks | £38 | £234 |
| Build A Flat Roof Extension near Croydon | £42 | £267 |
| Build A Flat Roof Extension near Bromley | £43 | £268 |
| Build A Flat Roof Extension near Redhill | £41 | £269 |
| Build A Flat Roof Extension near Bexley | £42 | £265 |
| Build A Flat Roof Extension near Reigate & Banstead | £41 | £271 |
| Build A Flat Roof Extension near Sutton | £43 | £274 |
| Build A Flat Roof Extension near Lewisham | £43 | £268 |
| Build A Flat Roof Extension near Reigate | £40 | £270 |
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 - £17,583

Two storey extension - £88,125

Build a timber frame extension - £26,083

Build a swimming pool - £81,083

Single storey extension - £56,664

Side return extension - £42,436

Install an RSJ - £2,283

Outbuilding - £10,083

Build a Mansard loft conversion - £52,083

Loft conversion - £34,530

Build a kitchen extension - £42,083

Hip to gable loft conversion - £42,083

Granny annexe - £87,083

Garden office - £10,083

Convert a Garage - £16,083

Garage - £18,583

Build a flat roof extension - £22,083

Build a dormer loft conversion - £42,083

Concrete foundations - £6,333

Convert a bungalow loft - £29,083

Convert a basement - £38,436