Find affordable Brentford extension builders
- Local extension builders Brentford
- Job estimates from extension builders near you
- Local Extension Builders in London Boroughs
| Low | Average | High |
|---|---|---|
| £25 | £38 | £150 |
| Average hourly rate from 189 extension builders in Brentford ex VAT or callout | ||
Average Brentford extension builder hourly rate is £37
Range from the cheapest, mostly independent, £36 per hour and £230 per day (BSE Construction Ltd) to the dearest, normally the best, £39 per hour and £243 per day (RAID Architecture).
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 Brentford
THM Building Services
£37/hour
£232/day
Extension Builder in Brentford, TW8.
Need an Extension Builder in Brentford? THM Building Services has been helping local clients (10 mile radius) with their jobs for many years. Get a quote today.
"UC beam install 2.5m only (calculations done, building control notification done, no pretty boxing etc.)"
ANNA, TW8
BUILDING ANGELS LTD
Brentford TW8
£37/hour
£232/day
Extension Builder in Brentford, TW8. Working within a 10 mile radius.
BUILDING ANGELS LTD is an established business in Brentford. We come highly recommended and provide competitive quotes for your work.
" Hi there, I'm reaching out regarding a live opportunity at Heathrow Airport for the design, manufacture, and installation of a pre-fabricated pedestrian bridge next to the Longford Link Bridge. The contract is valued between £150k–£250k and runs until Jan 2027. CAS accreditation is required. If..."
TENNYSON, W4
Pearl Valley Construction Services
£37/hour
£236/day
Extension Builder in Brentford, TW8. Working within a 10 mile radius.
Pearl Valley Construction Services is an established business in Brentford. We come highly recommended and provide competitive quotes for your work.
"Underpinning a house"
TW7
BSE Construction Ltd
Brentford London, Greater London TW8
£36/hour
£230/day
Extension Builder in Brentford, TW8. Covering 10 mile radius.
BSE Construction Ltd is a trusted Extension Builder serving customers in Brentford and the surrounding area. Contact us to today to get a competitive quote for work in Brentford. We offer value for money and quality to our customers, we pride ourselves on the positive feedback.
"Basement conversion"
WEST EALING
RAID Architecture
£39/hour
£243/day
RAID Architecture are extension builders in Brentford who work within a 10 mile radius. Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of work in Brentford and testimonials.
"Loft conversion"
EALING
Kantec
Brentford London, Greater London TW8
£36/hour
£230/day
Extension Builder in Brentford, TW8 covering a 10 mile radius.
Experienced Extension Builder ready to quote for your work. Kantec is the best Extension Builder in Brentford. No obligation free quotes and many happy customers.
"Kitchen extension"
WEST EALING
Buildup London Limited
£39/hour
£243/day
Extension Builder in Greater London, TW8. Working within a 10 mile radius.
BuildUp London are family people, and we fully appreciate the impact building work can have on your life. Our priority is ensuring an exceptional design and bespoke build quality while minimising these disruptions, so you and your family can enjo...
HOAM BUILD
Brentford TW8
£39/hour
£243/day
Extension Builder in Brentford, TW8. Working within a 10 mile radius.
We know what you need.... let our professional team guide you in the right direction when it comes to expanding and adding value to your home in every aspect. We have managed West London renovation projects of all sizes for over 12 years. We turn...
Buildup London Limited
£36/hour
£230/day
Relax... you have found a reliable extension builder in Brentford. Buildup London Limited is a friendly and reliable company based in Brentford who consider no job as too big or too small. Qualified, professional extension builders with years of experience in the industry.
Kacmar Building Service
Brentford TW8
£37/hour
£236/day
Trusted and professional extension builder in Brentford. Experienced in all work and keeping within budget and on quote. Kacmar Building Service have many happy customers in Brentford, testimonials available.
RAF Construction Solutions
£37/hour
£232/day
RAF Construction Solutions is an established and experienced local extension builder in Brentford. Please contact us for a free, no obligation quote and competitive rates. Covering a 10 mile radius.
Foran Construction Ltd
Brentford TW8
£37/hour
£233/day
Extension Builder in Brentford, TW8 covering a 10 mile radius.
Experienced Extension Builder ready to quote for your work. Foran Construction Ltd is the best Extension Builder in Brentford. No obligation free quotes and many happy customers.
Andy Harris Construction
£37/hour
£236/day
Andy Harris Construction is an established and experienced local extension builder in Brentford. Please contact us for a free, no obligation quote and competitive rates. Covering a 10 mile radius.
Betterspace
£37/hour
£236/day
Betterspace is an established and experienced local extension builder in Brentford. Please contact us for a free, no obligation quote and competitive rates. Covering a 5 mile radius.
Portal Property Services Ltd
£39/hour
£243/day
Extension Builder in Greater London, W13. Working within a 5 mile radius.
Portal Property Services Ltd attends to all your property-building needs.We offer complete building and project management services to residential and commercial clients, from the initial planning to the finishing touches. Our aim is always to com...
Pro Construction London Ltd
£39/hour
£243/day
Extension Builder in Kew Greater London, TW9. Working within a 10 mile radius.
Pro Construction London Ltd is more than an ordinary Refurbishment and Building Contractor. We are a building contractor with long experience and 100% impeccable reputation, customer-centric, client-tailored service, and professional expertise in ...
Renovations, Building, Servicing and Maintenance
£36/hour
£230/day
Extension Builder in Brentford, TW9. Working within a 10 mile radius.
Renovations, Building, Servicing and Maintenance is an established business in Brentford. We come highly recommended and provide competitive quotes for your work.
MALL BUILDERS
£37/hour
£231/day
MALL BUILDERS are extension builders in Brentford 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 Brentford and testimonials.
Arkadeo
£37/hour
£236/day
Need to find an Extension Builder near you for all your work?
Arkadeo provides a local, trusted service in and around Brentford. Homeowners and landlords choose us for our excellent knowledge, experience and reliability plus reasonable call-out fees if applicable and no obligation quotes.
JSL CONSTRUCTION
£37/hour
£233/day
Need to find an Extension Builder near you for all your work?
JSL CONSTRUCTION provides a local, trusted service in and around Brentford. Homeowners and landlords choose us for our excellent knowledge, experience and reliability plus reasonable call-out fees if applicable and no obligation quotes.
Quickly find an Extension Builder in Brentford
Use these steps to find Extension Builders in Brentford for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in Brentford. 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 Brentford 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 - £25,896
Garden office - £9,896
Granny annexe - £86,896
Flat roof extension - £21,896
Garage conversion - £15,896
Hip to gable loft conversion - £41,896
Bungalow loft conversion - £28,896
Dormer loft conversion - £41,896
Swimming pool - £80,896
Mansard loft conversion - £51,896
Concrete foundation - £6,146
Underpinning - £17,396
Two storey extension - £87,844
Basement conversion - £36,330
Side return extension - £40,330
Loft conversion - £32,775
Garage - £18,396
Single storey extension - £52,920
Outbuilding - £9,896
RSJ installation - £2,096
Kitchen extension - £41,896
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