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J Stevens Roofing & Guttering
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
D B Jones Builder
Trusted and professional extension builder in KT20. Experienced in all extension buildering work and keeping within budget and on quote. D B Jones ...
From £88,336
Cannon Gardens
David Hunt
Kingswood, KT20
Relax... you have found a reliable extension builder in KT20. Cannon Gardens is a friendly and reliable company based in KT20 who consider no job a...
From £87,856
Able Construction T/A
Experienced extension builder ready to quote for your work. Able Construction T/A is the best extension builder in KT20. No obligation free quotes ...
From £88,144
MSI
Tadworth, KT20
Relax... you have found a reliable extension builder in KT20. MSI is a friendly and reliable company based in KT20 who consider no job as too big o...
From £89,320
London Bespoke Build
Need an Extension Builder in KT20? London Bespoke Build has been helping local clients (10 mile radius) with their extension buildering jobs for ma...
From £87,952
D Bateman General Building Services
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £88,696
PZ Refurbishment Ltd
Pawel Zajac
At PZ Refurbishment we offer all aspects of Building, Roofing, Electrical, Joinery, Plumbing, Heating and more. We can carry out a large variety of...
From £88,528
AG Design And Build Limited
Tadworth, KT20
AG Design And Build Limited is an established extension buildering business in KT20. We come highly recommended and provide competitive quotes for ...
From £88,036
Building and Electricals Ltd
Our family-run building services company Building and Electricals Ltd has over 40 combined years of experience in the industry. We help customers i...
Cost of a two storey extension in KT20
Costs range from £87,856 (Able Construction T/A based in KT20) to £89,320 (London Bespoke Build based in KT20), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
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- How much does a two storey extension cost?
- Factors affecting the cost of a double storey extension
- How much value does a two storey extension add to a property?
- Types of two storey extension
- How long does a two storey extension take to build?
- Do you need planning permission for a two storey extension?
- What is the 45-degree rule for two storey extensions?
- Do you need an architect for an extension?
- How to finance an extension
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Estimates for common extension builder jobs in KT20;
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 - £17,721
Two storey extension - £88,331
Build a timber frame extension - £26,221
Build a swimming pool - £81,221
Single storey extension - £59,416
Side return extension - £43,984
Install an RSJ - £2,421
Outbuilding - £10,221
Build a Mansard loft conversion - £52,221
Loft conversion - £35,820
Build a kitchen extension - £42,221
Hip to gable loft conversion - £42,221
Granny annexe - £87,221
Garden office - £10,221
Convert a Garage - £16,221
Garage - £18,721
Build a flat roof extension - £22,221
Build a dormer loft conversion - £42,221
Concrete foundations - £6,471
Convert a bungalow loft - £29,221
Convert a basement - £39,984