Find affordable extension builders near W12
- Local extension builders W12
- Job estimates from extension builders near you
- Local Extension Builders in London Boroughs
| Low | Average | High |
|---|---|---|
| £25 | £38 | £55 |
| Average hourly rate from 144 extension builders in W12 ex VAT or callout | ||
Average W12 extension builder hourly rate is £39
Range from the cheapest, mostly independent, £36 per hour and £229 per day (JNJ Building Services Ltd) to the dearest, normally the best, £55 per hour and £440 per day (1st & 2nd Fix Vasconstruct).
Comparing hourly and daily rates of extension builders gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Click 'Get quotes' and describe your job and we will send it to your local extension builders for FREE.
Local extension builders W12
Art Connect Ltd
Lodnon W12
£37/hour
£234/day
Extension Builder in Lodnon, W12. Working within a 5 mile radius.
Art Connect Ltd specializes in delivering first-class construction and labour services, catering to the diverse needs of our clients. With a commitment to excellence, we offer a comprehensive range of services, including: - Labour ...
Areas Covered - London and area
"Side return extension"
JONATHAN, NW10
Graham Construction
£37/hour
£236/day
Extension Builder in W12, W12. Working within a 5 mile radius.
Graham Construction is an established business in W12. We come highly recommended and provide competitive quotes for your work.
"Loft conversion"
W12
The Great Wolf Construction
Londonderry W12
£39/hour
£243/day
The Great Wolf Construction are here to help customers who need an Extension Builder in W12. We offer a competitive rate to complete all your jobs to professional standards.
"Flat roof extension for a period mews terraced house. We'd like a bedroom extension with full bathroom and a roof top terrace. Footprint is roughly 8.5m x 6m."
JAMES, W6
Newpark Construction
£37/hour
£236/day
Newpark Construction are here to help customers who need an Extension Builder in W12. We offer a competitive rate to complete all your jobs to professional standards.
"Mansard loft conversion"
SHEPHERD'S BUSH
Add Global
71 Golhawk Road, London, Greater London W12
£37/hour
£231/day
Relax... you have found a reliable extension builder in W12. Add Global is a friendly and reliable company based in W12 who consider no job as too big or too small. Qualified, professional extension builders with years of experience in the industry.
"Garage"
W3
Clay Design & Build
£39/hour
£243/day
Extension Builder in Shepherd's Bush Greater London, W12. Working within a 5 mile radius.
Welcome to Clay. We’re a design and build atelier dedicated to transforming our clients’ spaces. Through a bespoke approach, we create designs and experiences that reflect your unique vision. Our love of nature and passion for revitalising spa...
"Basement conversion"
W4
GWS Roofing Specialists
London, Greater London W12
£39/hour
£243/day
GWS Roofing Specialists is an established and experienced local extension builder in W12. Please contact us for a free, no obligation quote and competitive rates. Covering a 5 mile radius.
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1st & 2nd Fix Vasconstruct
£55/hour
£440/day
Extension Builder in Shepherd's Bush London, W12. Working within a 5 mile radius.
RUBBERCOVER™ EPDM Permaroof rubber cover and roof system. Lead flashing. NCTS. Timber Frame Buildings. Refurbish fit out, structural roofs, Dormers, internal and external doors. Sash and casement windows, opening, Studwalls, stairs a...
Areas Covered - Ealing, LBHFulham, Kensington and Chelsea, Lambeth, Tooting Streatham.
Heaven Sent Construction
Shepherd's Bush W12
£37/hour
£236/day
Need to find an Extension Builder near you for all your work?
Heaven Sent Construction provides a local, trusted service in and around W12. Homeowners and landlords choose us for our excellent knowledge, experience and reliability plus reasonable call-out fees if applicable and no obligation quotes.
Natalia Kennerley
£39/hour
£243/day
Need to find an Extension Builder near you for all your work?
Natalia Kennerley provides a local, trusted service in and around W12. Homeowners and landlords choose us for our excellent knowledge, experience and reliability plus reasonable call-out fees if applicable and no obligation quotes.
Hammerhead General Contractors Ltd
London, Greater London W12
£37/hour
£231/day
Trusted and professional extension builder in W12. Experienced in all work and keeping within budget and on quote. Hammerhead General Contractors Ltd have many happy customers in W12, testimonials available.
Sam Loft
£37/hour
£236/day
Need to find an Extension Builder near you for all your work?
Sam Loft provides a local, trusted service in and around W12. Homeowners and landlords choose us for our excellent knowledge, experience and reliability plus reasonable call-out fees if applicable and no obligation quotes.
HUGHES BUILDERS
Shepherd's Bush W12
£37/hour
£236/day
Extension Builder in W12, W12 covering a 5 mile radius.
Experienced Extension Builder ready to quote for your work. HUGHES BUILDERS is the best Extension Builder in W12. No obligation free quotes and many happy customers.
IC&T PROJECTS
£39/hour
£243/day
Extension Builder in W12, W12.
Need an Extension Builder in W12? IC&T PROJECTS has been helping local clients (5 mile radius) with their jobs for many years. Get a quote today.
JNJ Building Services Ltd
151 Askew Road, Hammersmith, London, Lon W12
£36/hour
£229/day
Extension Builder in W12, W12 covering a 5 mile radius.
Experienced Extension Builder ready to quote for your work. JNJ Building Services Ltd is the best Extension Builder in W12. No obligation free quotes and many happy customers.
Baes design ltd
£39/hour
£243/day
Baes design ltd are extension builders in W12 who work within a 5 mile radius. Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of work in W12 and testimonials.
Jonathan P Spencer Design and Build Limited
£37/hour
£231/day
Trusted and professional extension builder in W12. Experienced in all work and keeping within budget and on quote. Jonathan P Spencer Design and Build Limited have many happy customers in W12, testimonials available.
HvB Development + Elnaz Namaki Studio
£37/hour
£231/day
Extension Builder in W12, W11 covering a 5 mile radius.
Experienced Extension Builder ready to quote for your work. HvB Development + Elnaz Namaki Studio is the best Extension Builder in W12. No obligation free quotes and many happy customers.
One L Building Services
£37/hour
£231/day
Extension Builder in W12, W11 covering a 5 mile radius.
Experienced Extension Builder ready to quote for your work. One L Building Services is the best Extension Builder in W12. No obligation free quotes and many happy customers.
Haris Builders
£39/hour
£243/day
Extension Builder in Shepherd's Bush London, W12. Working within a 5 mile radius.
We'll get the job done! 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 additional cost and stress of moving. Within most properties there is untapp...
Quickly find an Extension Builder in W12
Use these steps to find Extension Builders in W12 for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in W12. 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 W12 Extension Builders or phone them directly - you’re in control!
The most important thing is do avoid handing over cash or paying large sums in advance. Be wary of paying cash for a cheaper job, i.e. to avoid VAT, you may be going down a slippery slope of not doing things properly which may eventually mean your job is also not done properly.
Agree when you intend to pay, ideally after you are satisfied with the completed job. If it is a big job agree a schedule of staged payments which is fair to both parties.
To avoid bad tradespeople and to ensure you can find them should they not answer a mobile;
- Get proper contact details and check them yourself
- Check if the company is verified on the Companies House website
- Get phone details, ideally a land line or 0800 number and check it
- Get a physical office address
Get quotes in writing by email or in person if possible. Getting quotes online or by text is ok (make sure you accept the offer by replying). For large projects make a written agreement, schedule of works and snagging plans as part of a working document. Also;
- Agree expected quality of workmanship and materials in advance
- When will work start and when will project be finished, what happens if project over runs ?
- How long is the guarantee on work and materials eg 12 months
- Discuss onsite behaviour in advance (no smoking, swearing or using mobile phones for non-work purposes)
- Agree that your Extension Builder will remove all debris and rubbish and what level of tidying up you want after job
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.
Timber frame extension - £25,904
Garden office - £9,904
Granny annexe - £86,904
Flat roof extension - £21,904
Garage conversion - £15,904
Hip to gable loft conversion - £41,904
Bungalow loft conversion - £28,904
Dormer loft conversion - £41,904
Swimming pool - £80,904
Mansard loft conversion - £51,904
Concrete foundation - £6,154
Underpinning - £17,404
Two storey extension - £87,856
Basement conversion - £36,420
Side return extension - £40,420
Loft conversion - £32,850
Garage - £18,404
Single storey extension - £53,080
Outbuilding - £9,904
RSJ installation - £2,104
Kitchen extension - £41,904
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