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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.
"Side return extension 12smq roughly Open up wall to garden and install big door window Demolish lean-to and original victorian toilet" - E10, job posted 21/03/26
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...
"Loft conversion" - E17, job posted 29/10/25
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...
"Loft conversion Double storey extension" - E18, job posted 09/08/25
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...
"Fully extend with side return and renovate dated Victorian house with loft added. Size is 100m2 currently to 160m2 on completion." - E5, job posted 19/06/25
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...
"Basement conversion" - E5, job posted 27/04/25
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...
"Flat roof extension" - E5, job posted 18/03/25
2nwest Builders and Decorators Ltd
Relax... you have found a reliable extension builder in Leyton. 2nwest Builders and Decorators Ltd is a friendly and reliable company based in Leyt...
"Side return extension" - E17, job posted 08/03/25
Dakus Construction Ltd
Dakus Construction Ltd are here to help customers who need an Extension Builder in Leyton. We offer a competitive rate to complete all your extensi...
"Outbuilding, how much does it cost?" - E7, job posted 07/11/24
Dragan Building Construction
Need to find an Extension Builder near you for all your extension buildering work?
Dragan Building Construction provides a local, trusted e...
"Looking for a glass side infill extension for terraced house in Leyton E15; Total area of extension is around 10-11 sqm." - E15, job posted 10/06/24
J&H Builder
J&H Builder is a trusted extension builder serving customers in Leyton and the surrounding area. Contact us to today to get a competitive quote for...
"Loft conversion of a semi-detached house, E15 2AT Hip to Gable Conversion + Rear Dormer Bedroom / Bathroom combination Thus need plumbling and electricity" - E15, job posted 08/03/24
John Ghanie
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Loft conversion" - E15, job posted 08/03/24
Mehar builders limited
Mehar Allahdeta
Experienced extension builder ready to quote for your work. Mehar builders limited is the best extension builder in Leyton. No obligation free quo...
"Rear ground level extension" - E17, job posted 06/10/23
Gardening Life Ltd
IONUT SORIN Leoveanu
Hi , we are profesional team , we are based in Leyton but we cover all London.
Happy customers = happy team= the business is gooin...
"Basement conversion" - E15, job posted 31/08/23
Iservices-uk.org
Ilirjan Sheqja
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Expert Crew Ltd
Expert Crew Ltd is an established and experienced local extension builder in Leyton. Please contact us for a free, no obligation quote and competit...
HHOMECONCEPTS
We are Joinery and renovation company based in London where we can offer from Kitchen & wardrobes design ,supply ,installation ,joinery services an...
House Proud Construction & Design
At House Proud Construction we fit bespoke bathrooms for discerning customers in East London and the surrounding area.It is a well-known fa...
Bushwood Carpentry and Building Ltd
Leyton London, E10
Bushwood Carpentry & Building Ltd. consists of a team of trustworthy, reliable and professional tradespeople with over 22 years experience. We are ...
£46/hr
£287/day
A & B LONDON CONSTRUCTION
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£41/hr
£262/day
E & G Restoration Ltd
Leyton London, E10
E & G Restoration Ltd are here to help customers who need an Extension Builder in Leyton. We offer a competitive rate to complete all your extensio...
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Job estimates from extension builders near you
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.

Build a timber frame extension - £26,280

Garden office - £10,280

Granny annexe - £87,280

Build a flat roof extension - £22,280

Convert a Garage - £16,280

Hip to gable loft conversion - £42,280

Convert a bungalow loft - £29,280

Build a dormer loft conversion - £42,280

Build a swimming pool - £81,280

Build a Mansard loft conversion - £52,280

Concrete foundations - £6,530

Underpin a building - £17,780

Two storey extension - £88,420

Convert a basement - £40,650

Side return extension - £44,650

Loft conversion - £36,375

Garage - £18,780

Single storey extension - £60,600

Outbuilding - £10,280

Install an RSJ - £2,480

Build a kitchen extension - £42,280
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