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T M Builder
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"New loft and side extension roof changing" - UB2, job posted 30/08/26
MJ Builders (London) Ltd
Hardeep Samra
Southall, UB1
MJ Builders (London) Ltd are here to help customers who need an Extension Builder in Southall. We offer a competitive rate to complete all your ext...
"New loft and side extension roof changing" - SOUTHALL, job posted 30/08/26
DC Build & Pave
Trusted and professional extension builder in Southall. Experienced in all extension buildering work and keeping within budget and on quote. DC Bui...
"Loft conversion" - SOUTHALL, job posted 03/11/25
Matharu Buildings
Bill Matharu
Matharu Buildings is an established extension buildering business in Southall. We come highly recommended and provide competitive quotes for your w...
"We r a specialist for loft conversion extensions and renovations, we do electrical plumbing new builds house or garage landscaping my company name is JAPJI CONSTRUCTION LIMITED 1598 xxx )" - UB4, job posted 15/09/25
Global Building & Designs Ltd
Global Building & Designs Ltd is an established and experienced local extension builder in Southall. Please contact us for a free, no obligation qu...
"Side return extension" - SOUTHALL, job posted 10/02/25
JD Construction
Southall, UB2
JD Construction is an established and experienced local extension builder in Southall. Please contact us for a free, no obligation quote and compet...
"2 storey extension required" - SOUTHALL, job posted 08/10/24
Ava Constructions & Decors Ltd
Need an Extension Builder in Southall? Ava Constructions & Decors Ltd has been helping local clients (10 mile radius) with their extension builderi...
"Loft conversion in Greenford. Hip and gable seni detached property . Interested in quotes for the shell stage, 1st fix and second fix" - SOUTHALL, job posted 06/08/24
Gallant Contractors Ltd
Southall Greater London, UB2
Gallant Contractors have partnered with Homeowners, Designers and Architects to deliver unrivalled construction, renovation, double glazing and ref...
"Loft conversion..Plus planning" - SOUTHALL, job posted 20/06/24
Greenline Construction
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Outbuilding" - HANWELL, job posted 03/06/24
S.K Singh
Southall, UB1
Need an Extension Builder in Southall? S.K Singh has been helping local clients (10 mile radius) with their extension buildering jobs for many year...
"8m Dormer Loft conversion with 2 bedrooms and 2 bathrooms. Let me have your email id and I will send drawings so that you can provide us with quote" - SOUTHALL, job posted 26/02/24
Ideal Construction
Ideal Construction is an established extension buildering business in Southall. We come highly recommended and provide competitive quotes for your ...
"Loft conversion" - SOUTHALL, job posted 29/01/24
Kairon Construction
Southall, UB1
Experienced extension builder ready to quote for your work. Kairon Construction is the best extension builder in Southall. No obligation free quote...
"Loft conversion of a two bedroom flat at the end of the set of flats, to convert loft into a one bedroom flat, with 3 windows, bath,toilet and kitchen in UB 1 1PQ" - SOUTHALL, job posted 27/07/23
D.S Builders
D.S Builders is a trusted extension builder serving customers in Southall and the surrounding area. Contact us to today to get a competitive quote ...
"Loft conversion of a two bedroom flat at the end of the set of flats, to convert loft into a one bedroom flat, with 3 windows, bath,toilet and kitchen in UB 1 1PQ" - SOUTHALL, job posted 27/07/23
House Builders London
Southall Greater London, UB1
Need an Extension Builder in Southall? House Builders London has been helping local clients (10 mile radius) with their extension buildering jobs f...
ART DESIGN INTERIORS UK LTD
Experienced extension builder ready to quote for your work. ART DESIGN INTERIORS UK LTD is the best extension builder in Southall. No obligation fr...
GN Property Services Ltd
GN Property Services Ltd are here to help customers who need an Extension Builder in Southall. We offer a competitive rate to complete all your ext...
In Home Building Construction Ltd
In Home Building Construction Ltd are here to help customers who need an Extension Builder in Southall. We offer a competitive rate to complete all...
Caro Construction Ltd
Caro Construction Ltd is an established and experienced local extension builder in Southall. Please contact us for a free, no obligation quote and ...
MJO CONSTRUCTION LIMITED
MJO CONSTRUCTION LIMITED are here to help customers who need an Extension Builder in Southall. We offer a competitive rate to complete all your ext...
Platinum Pearl Construction Ltd
Platinum Pearl Construction Ltd originated as a small general building services company over 10 years ago and have now grown into the multi-faceted...
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- Select your Extension Builder: Compare Extension Builders interested in working with you. You can use HaMuch to safely message local Southall Extension Builders or phone them directly - you’re in control!
Local Extension Builders in London Boroughs
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 - £26,184
Garden office - £10,184
Granny annexe - £87,184
Build a flat roof extension - £22,184
Convert a Garage - £16,184
Hip to gable loft conversion - £42,184
Convert a bungalow loft - £29,184
Build a dormer loft conversion - £42,184
Build a swimming pool - £81,184
Build a Mansard loft conversion - £52,184
Concrete foundations - £6,434
Underpin a building - £17,684
Two storey extension - £88,276
Convert a basement - £39,570
Side return extension - £43,570
Loft conversion - £35,475
Garage - £18,684
Single storey extension - £58,680
Outbuilding - £10,184
Install an RSJ - £2,384
Build a kitchen extension - £42,184
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