Find affordable Harrow extension builders
- Local extension builders Harrow
- Job estimates from extension builders near you
- Local Extension Builders in London Boroughs
| Low | Average | High |
|---|---|---|
| £15 | £37 | £65 |
| Average hourly rate from 133 extension builders in Harrow ex VAT or callout | ||
Average Harrow extension builder hourly rate is £37
Range from the cheapest, mostly independent, £25 per hour and £231 per day (K Mccormack) to the dearest, normally the best, £39 per hour and £350 per day (Taaj design and build).
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 Harrow
TAAJ Construction
£37/hour
£231/day
Trusted and professional extension builder in Harrow. Experienced in all work and keeping within budget and on quote. TAAJ Construction have many happy customers in Harrow, testimonials available.
"Kitchen extension"
UB6
Taaj design and build
Harrow Greater London HA1
£39/hour
£243/day
Extension Builder in Harrow Greater London, HA1. Working within a 10 mile radius.
Taaj empowers homeowners to bring out their own personality and creativity in the space they live in by bringing transparency, attention to detail and craftsmanship to unique remodeling projects. Our mission is to approach projects with willingnes...
"Loft conversion"
ADELIN, HARROW ON THE HILL
G. Building Services Ltd
£37/hour
£232/day
Extension Builder in Harrow, HA1. Covering 10 mile radius.
G. Building Services Ltd is a trusted Extension Builder serving customers in Harrow and the surrounding area. Contact us to today to get a competitive quote for work in Harrow. We offer value for money and quality to our customers, we pride ourselves on the positive feedback.
"Garden office"
HARROW ON THE HILL
DS Build & Design
Harrow HA1
£37/hour
£236/day
DS Build & Design are here to help customers who need an Extension Builder in Harrow. We offer a competitive rate to complete all your jobs to professional standards.
"Loft conversion"
HARROW ON THE HILL
PJC Improvements LTD
£39/hour
£243/day
Extension Builder in Middlesex, HA1. Working within a 10 mile radius.
We pride ourselves on going that extra mile to ensure our jobs stand out from the rest. We work closely with our clients to carefully understand their goals and needs, to make sure we achieve a design and build which not only meets, but surpasses ...
"Loft conversion"
ALFIE, HARROW ON THE HILL
K Mccormack
Harrow HA1
£25/hour
£250/day
Trusted and professional extension builder in Harrow. Experienced in all work and keeping within budget and on quote. K Mccormack have many happy customers in Harrow, testimonials available.
"Dormer loft conversion"
HARROW
JJSR Construction Ltd
£37/hour
£236/day
JJSR Construction Ltd is an established and experienced local extension builder in Harrow. Please contact us for a free, no obligation quote and competitive rates. Covering a 10 mile radius.
"Loft conversion"
HARROW
Jay Builders
Harrow HA1
£37/hour
£237/day
Jay Builders is an established and experienced local extension builder in Harrow. Please contact us for a free, no obligation quote and competitive rates. Covering a 10 mile radius.
Prospective Builders Ltd
£39/hour
£243/day
Relax... you have found a reliable extension builder in Harrow. Prospective Builders Ltd is a friendly and reliable company based in Harrow who consider no job as too big or too small. Qualified, professional extension builders with years of experience in the industry.
F&V CONSTRUCTION LTD
£39/hour
£243/day
Extension Builder in Harrow, HA3 covering a 10 mile radius.
Experienced Extension Builder ready to quote for your work. F&V CONSTRUCTION LTD is the best Extension Builder in Harrow. No obligation free quotes and many happy customers.
A S Builders
£37/hour
£236/day
Need to find an Extension Builder near you for all your work?
A S Builders provides a local, trusted service in and around Harrow. Homeowners and landlords choose us for our excellent knowledge, experience and reliability plus reasonable call-out fees if applicable and no obligation quotes.
BUILDING SERVICES (UK) LTD
£37/hour
£233/day
Extension Builder in Harrow, HA3 covering a 10 mile radius.
Experienced Extension Builder ready to quote for your work. BUILDING SERVICES (UK) LTD is the best Extension Builder in Harrow. No obligation free quotes and many happy customers.
A D C BUILDERS
Harrow HA1
£37/hour
£235/day
Trusted and professional extension builder in Harrow. Experienced in all work and keeping within budget and on quote. A D C BUILDERS have many happy customers in Harrow, testimonials available.
josh construction
£37/hour
£237/day
josh construction is an established and experienced local extension builder in Harrow. Please contact us for a free, no obligation quote and competitive rates. Covering a 10 mile radius.
Stamp Design & Build Ltd
Harrow HA1
£37/hour
£236/day
Extension Builder in Harrow, HA1. Covering 10 mile radius.
Stamp Design & Build Ltd is a trusted Extension Builder serving customers in Harrow and the surrounding area. Contact us to today to get a competitive quote for work in Harrow. We offer value for money and quality to our customers, we pride ourselves on the positive feedback.
Hexaform
£39/hour
£245/day
Extension Builder in Greater London, HA3. Working within a 10 mile radius.
HEXAFORM is a London based multi-disciplinary design and build company that has the experience, work ethic, communication tools, and systems in place needed to bring any scale project from a virtual blueprint to reality. Historically the designer-...
Franco Building
Harrow HA1
£37/hour
£232/day
Extension Builder in Harrow, HA1. Covering 10 mile radius.
Franco Building is a trusted Extension Builder serving customers in Harrow and the surrounding area. Contact us to today to get a competitive quote for work in Harrow. We offer value for money and quality to our customers, we pride ourselves on the positive feedback.
Levismar Construction Ltd
£35/hour
£350/day
Levismar Construction Ltd is an established and experienced local extension builder in Harrow. Please contact us for a free, no obligation quote and competitive rates. Covering a 10 mile radius.
BBS & sons construction uk ltd
£37/hour
£233/day
Extension Builder in Harrow, HA2 covering a 10 mile radius.
Experienced Extension Builder ready to quote for your work. BBS & sons construction uk ltd is the best Extension Builder in Harrow. No obligation free quotes and many happy customers.
Quickly find an Extension Builder in Harrow
Use these steps to find Extension Builders in Harrow for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in Harrow. 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 Harrow 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 - £25,880
Garden office - £9,880
Granny annexe - £86,880
Flat roof extension - £21,880
Garage conversion - £15,880
Hip to gable loft conversion - £41,880
Bungalow loft conversion - £28,880
Dormer loft conversion - £41,880
Swimming pool - £80,880
Mansard loft conversion - £51,880
Concrete foundation - £6,130
Underpinning - £17,380
Two storey extension - £87,820
Basement conversion - £36,150
Side return extension - £40,150
Loft conversion - £32,625
Garage - £18,380
Single storey extension - £52,600
Outbuilding - £9,880
RSJ installation - £2,080
Kitchen extension - £41,880
People in Harrow searching for a Extension Builder also viewed...
The Largest Database of UK Trade Rates
At HaMuch we know what tradespeople charge because we have the largest database of rates anywhere in the UK. If you want quotes for jobs at the right price for you, post your jobs with HaMuch and get your home improvements kickstarted straight away!