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Bspec Ltd
Mick Singh
At Building Services Contractors we pride ourselves on an efficient and friendly service, and strive to achieve 100% customer satisfaction.
Propello
Ali Alagoz
Propello is an established and experienced local extension builder in Leyton. Please contact us for a free, no obligation quote and competitive ra...
From £88,264
Fedora and sons Ltd
MIHAI Martolea
Member since September 2026
Fedora and sons Ltd is a trusted extension builder serving customers in Leyton and the surrounding area. Contact us to today to get a competitive q...
CC&D BUILDING LTD
Catalin CIOBANU
Experienced extension builder ready to quote for your work. CC&D BUILDING LTD is the best extension builder in Leyton. No obligation free quotes an...
M Saleem Builders
Relax... you have found a reliable extension builder in Leyton. M Saleem Builders is a friendly and reliable company based in Leyton who consider n...
UK Drywall Ltd
UK Drywall Ltd is an established and experienced local extension builder in Leyton. Please contact us for a free, no obligation quote and competiti...
KS Plastering SERVICE
Sampson Essien
Thistle Bonding Coat: Ideal for use on low-suction backgrounds such as brick or concrete blocks, this product provided a solid foundation, Thi...
GNB Construction Builders Ltd
Trusted and professional extension builder in Leyton. Experienced in all extension buildering work and keeping within budget and on quote. GNB Cons...
G HAMID CONSTRUCTION LTD
Relax... you have found a reliable extension builder in Leyton. G HAMID CONSTRUCTION LTD is a friendly and reliable company based in Leyton who con...
Kaseno Group
Kaseno Group are here to help customers who need an Extension Builder in Leyton. We offer a competitive rate to complete all your extension builder...
Cost of a two storey extension in Leyton
Costs range from £87,880 (G HAMID CONSTRUCTION LTD based in E6) to £90,376 (Propello based in E17), 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 Leyton;
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 - £17,781
Two storey extension - £88,421
Build a timber frame extension - £26,281
Build a swimming pool - £81,281
Single storey extension - £60,616
Side return extension - £44,659
Install an RSJ - £2,481
Outbuilding - £10,281
Build a Mansard loft conversion - £52,281
Loft conversion - £36,383
Build a kitchen extension - £42,281
Hip to gable loft conversion - £42,281
Granny annexe - £87,281
Garden office - £10,281
Convert a Garage - £16,281
Garage - £18,781
Build a flat roof extension - £22,281
Build a dormer loft conversion - £42,281
Concrete foundations - £6,531
Convert a bungalow loft - £29,281
Convert a basement - £40,659