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AV Home Improvements
Herts, WD19
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
"Loft conversion" - WD19, job posted 07/05/26
Sharp Building Ltd
Sharp Building Ltd is an established and experienced local extension builder in WD19. Please contact us for a free, no obligation quote and competi...
"Side return extension" - WD18, job posted 09/10/25
AVENUE BUILDERS
AVENUE BUILDERS is an established extension buildering business in WD19. We come highly recommended and provide competitive quotes for your work.
"I am looking for quotes for a small rear extension on a terraced property in WD18, Watford. The extension will be built directly behind the existing kitchen and will house a toilet, stand-up shower, and a small hand basin. Existing Details: Existing Kitchen Width (internal): 2.01 metres ..." - WD18, job posted 07/08/25
C S C BUILDINGS LTD
Relax... you have found a reliable extension builder in WD19. C S C BUILDINGS LTD is a friendly and reliable company based in WD19 who consider no ...
"I am looking for quotes for a small rear extension on a terraced property in WD18, Watford. The extension will be built directly behind the existing kitchen and will house a toilet, stand-up shower, and a small hand basin. Existing Details: Property Type: Mid-terrace house Location: WD18,..." - WATFORD, job posted 07/08/25
Frame Brickwork
Relax... you have found a reliable extension builder in WD19. Frame Brickwork is a friendly and reliable company based in WD19 who consider no job ...
"Single storey extension" - WATFORD, job posted 26/05/25
1st Choice Builders UK
Experienced extension builder ready to quote for your work. 1st Choice Builders UK is the best extension builder in WD19. No obligation free quotes...
"Loft conversion - (2 Rooms and a shower) Total Area - 40 square metres)" - WD19, job posted 29/12/24
T N Roofing
T N Roofing is an established extension buildering business in WD19. We come highly recommended and provide competitive quotes for your work.
"Loft conversion" - WD17, job posted 27/12/24
Project Squared Construction Ltd
We specialise in constructing and the refurbishment of homes for discerning clients looking for quality, excellence and design in London and the Ho...
"Two storey extension" - WATFORD, job posted 16/12/24
Design & Build Builders Ltd
Trusted and professional extension builder in WD19. Experienced in all extension buildering work and keeping within budget and on quote. Design & B...
"Side return extension" - WD17, job posted 05/03/24
£48/hr
£303/day
S2M VENTURES LLP
Trusted and professional extension builder in WD19. Experienced in all extension buildering work and keeping within budget and on quote. S2M VENTUR...
£40/hr
£253/day
Cannon Build Solutions
Hertfordshire, WD19
Cannon Build Solutions is an established extension buildering business in WD19. We come highly recommended and provide competitive quotes for your ...
£46/hr
£288/day
Ideal Place Construction Ltd
Trusted and professional extension builder in WD19. Experienced in all extension buildering work and keeping within budget and on quote. Ideal Plac...
£45/hr
£285/day
Architectural Brickwork Services
Hertfordshire, WD19
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
£44/hr
£278/day
Daniel London
Daniel London is a trusted extension builder serving customers in WD19 and the surrounding area. Contact us to today to get a competitive quote for...
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- Select your Extension Builder: Compare Extension Builders interested in working with you. You can use HaMuch to safely message local WD19 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 - £26,480
Garden office - £10,480
Granny annexe - £87,480
Build a flat roof extension - £22,480
Convert a Garage - £16,480
Hip to gable loft conversion - £42,480
Convert a bungalow loft - £29,480
Build a dormer loft conversion - £42,480
Build a swimming pool - £81,480
Build a Mansard loft conversion - £52,480
Concrete foundations - £6,730
Underpin a building - £17,980
Two storey extension - £88,720
Convert a basement - £42,900
Side return extension - £46,900
Loft conversion - £38,250
Garage - £18,980
Single storey extension - £64,600
Outbuilding - £10,480
Install an RSJ - £2,680
Build a kitchen extension - £42,480
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