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QA's Pointing and Brick Repair
QA's Pointing Brick Repair
Relax... you have found a reliable extension builder in West Brompton. QA's Pointing and Brick Repair is a friendly and reliable company based in W...
"Single storey extension" - SW18, job posted 23/03/26
Red Box Maintenance Ltd
Red Box are a Fulham-based building and decorating business who work in West and Southwest London, and who specialise in fine interior renovations,...
M & A UK Ltd
Relax... you have found a reliable extension builder in West Brompton. M & A UK Ltd is a friendly and reliable company based in West Brompton who c...
London Construction
London Construction is an established and experienced local extension builder in West Brompton. Please contact us for a free, no obligation quote a...
Battersea Plumbers
kanreen
Need an Extension Builder in West Brompton? Battersea Plumbers has been helping local clients (5 mile radius) with their extension buildering jobs ...
H G Builders
H G Builders is an established and experienced local extension builder in West Brompton. Please contact us for a free, no obligation quote and comp...
Soceanu Construction Ltd
John Soceanu
We offer expert restoration and refurbishment services designed to breathe new life into your property. Whether you’re looking to restore a histo...
The Patio Co
The Patio Co is an established and experienced local extension builder in West Brompton. Please contact us for a free, no obligation quote and comp...
Phormwork
Phormwork are here to help customers who need an Extension Builder in West Brompton. We offer a competitive rate to complete all your extension bui...
Newspace Interiors
Newspace Interiors is an established extension buildering business in West Brompton. We come highly recommended and provide competitive quotes for ...
Beaufort Construction London Ltd
Beaufort Construction London specialises in the design, build and project management of both residential and commercial construction projects throu...
London Design Collaborative
In a throwaway world, the core to our design ethos is to create cabinets and interiors of beauty and function that are timeless.Our head designer R...
Pure Contractors Ltd
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...
Koncept Bathrooms
Need an Extension Builder in West Brompton? Koncept Bathrooms has been helping local clients (5 mile radius) with their extension buildering jobs f...
TELEMARK CONSTRUCTION LTD
TELEMARK CONSTRUCTION LTD is a trusted extension builder serving customers in West Brompton and the surrounding area. Contact us to today to get a ...
£42/hr
£262/day
Leon
Leon is an established and experienced local extension builder in West Brompton. Please contact us for a free, no obligation quote and competitive ...
£40/hr
£248/day
Palm Property Developments Ltd
Experienced extension builder ready to quote for your work. Palm Property Developments Ltd is the best extension builder in West Brompton. No oblig...
£46/hr
£287/day
HillMagee
HillMagee is a refurbishment and building company that specialise in residential projects. We pride ourselves on being able to offer a wide range o...
£40/hr
£247/day
KÖK London ltd.
Need an Extension Builder in West Brompton? KÖK London ltd. has been helping local clients (5 mile radius) with their extension buildering jobs fo...
£50/hr
£312/day
Loran Design and Build Ltd
Our building services company Loran Design and Build Ltd was established in 2020 but have been providing customers in Clapham and the surrounding a...
Quickly find an Extension Builder in West Brompton
Use these steps to find Extension Builders in West Brompton for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in West Brompton. We’ll notify you via text or email when an Extension Builder is available to quote.
- Select your Extension Builder: Compare Extension Builders interested in working with you. You can use HaMuch to safely message local West Brompton 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 - £26,208

Garden office - £10,208

Granny annexe - £87,208

Build a flat roof extension - £22,208

Convert a Garage - £16,208

Hip to gable loft conversion - £42,208

Convert a bungalow loft - £29,208

Build a dormer loft conversion - £42,208

Build a swimming pool - £81,208

Build a Mansard loft conversion - £52,208

Concrete foundations - £6,458

Underpin a building - £17,708

Two storey extension - £88,312

Convert a basement - £39,840

Side return extension - £43,840

Loft conversion - £35,700

Garage - £18,708

Single storey extension - £59,160

Outbuilding - £10,208

Install an RSJ - £2,408

Build a kitchen extension - £42,208
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