Find affordable extension builders near KT20
- Local extension builders KT20
- Job estimates from extension builders near you
- Local Extension Builders in London Boroughs
| Low | Average | High |
|---|---|---|
| £30 | £37 | £50 |
| Average hourly rate from 17 extension builders in KT20 ex VAT or callout | ||
Average KT20 extension builder hourly rate is £37
Range from the cheapest, mostly independent, £30 per hour and £229 per day (PZ Refurbishment Ltd) to the dearest, normally the best, £50 per hour and £300 per day (London Bespoke 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 KT20
AG Design And Build Limited
Tadworth KT20
£37/hour
£233/day
Extension Builder in KT20, KT20. Working within a 10 mile radius.
AG Design And Build Limited is an established business in KT20. We come highly recommended and provide competitive quotes for your work.
PZ Refurbishment Ltd
£30/hour
£250/day
Extension Builder in Tadworth, KT20. Working within a 10 mile radius.
At PZ Refurbishment we offer all aspects of Building, Roofing, Electrical, Joinery, Plumbing, Heating and more. We can carry out a large variety of trade work in the Domestic and Commercial fields and we pride ourselves on an efficient and friendl...
London Bespoke Build
Tadworth KT20
£50/hour
£300/day
Extension Builder in KT20, KT20.
Need an Extension Builder in KT20? London Bespoke Build has been helping local clients (10 mile radius) with their jobs for many years. Get a quote today.
Building and Electricals Ltd
£39/hour
£243/day
Extension Builder in Tadworth England, KT20. Working within a 10 mile radius.
Our family-run building services company Building and Electricals Ltd has over 40 combined years of experience in the industry. We help customers in Surrey and the surrounding area by providing professional, trustworthy building services.W...
Keystone Constuction Surrey
£39/hour
£243/day
Extension Builder in Tadworth Surrey, KT20. Working within a 10 mile radius.
We pride ourselves on our approach, project delivery project management and end product. We are a full service business, so can handle your project requirements and remove the stresses tan can come with large construction projects.
D B Jones Builder
Tadworth KT20
£37/hour
£232/day
Trusted and professional extension builder in KT20. Experienced in all work and keeping within budget and on quote. D B Jones Builder have many happy customers in KT20, testimonials available.
Abstract Renovations Ltd
£36/hour
£230/day
Extension Builder in KT20, KT20 covering a 10 mile radius.
Experienced Extension Builder ready to quote for your work. Abstract Renovations Ltd is the best Extension Builder in KT20. No obligation free quotes and many happy customers.
Able Construction T/A
Tadworth KT20
£37/hour
£233/day
Extension Builder in KT20, KT20 covering a 10 mile radius.
Experienced Extension Builder ready to quote for your work. Able Construction T/A is the best Extension Builder in KT20. No obligation free quotes and many happy customers.
C Dingle Builders & Decorators
£36/hour
£230/day
Extension Builder in KT20, KT20.
Need an Extension Builder in KT20? C Dingle Builders & Decorators has been helping local clients (10 mile radius) with their jobs for many years. Get a quote today.
D Bateman General Building Services
£37/hour
£232/day
D Bateman General Building Services are extension builders in KT20 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 KT20 and testimonials.
J Stevens Roofing & Guttering
£36/hour
£229/day
J Stevens Roofing & Guttering are extension builders in KT20 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 KT20 and testimonials.
R & L Building Contractors
£30/hour
£250/day
Extension Builder in KT20, KT18.
Need an Extension Builder in KT20? R & L Building Contractors has been helping local clients (10 mile radius) with their jobs for many years. Get a quote today.
AB KeyStone Homes Ltd
£39/hour
£243/day
Extension Builder in Epsom Surrey, KT18. Working within a 10 mile radius.
Our building services company AB KeyStone Homes Ltd has 30 years of experience. We have been helping customers in the KTI8 postcode area and the surrounding 20-mile radius by providing professional, trustworthy building services.We know it...
Safebuild Fitout
Surrey KT20
£39/hour
£243/day
Extension Builder in KT20, KT20.
Need an Extension Builder in KT20? Safebuild Fitout has been helping local clients (10 mile radius) with their jobs for many years. Get a quote today.
Cannon Gardens
£30/hour
£240/day
Relax... you have found a reliable extension builder in KT20. Cannon Gardens is a friendly and reliable company based in KT20 who consider no job as too big or too small. Qualified, professional extension builders with years of experience in the industry.
M & R BUILDING SERVICES
£37/hour
£233/day
Relax... you have found a reliable extension builder in KT20. M & R BUILDING SERVICES is a friendly and reliable company based in KT20 who consider no job as too big or too small. Qualified, professional extension builders with years of experience in the industry.
Quickly find an Extension Builder in KT20
Use these steps to find Extension Builders in KT20 for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in KT20. 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 KT20 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 - £25,928

Garden office - £9,928

Granny annexe - £86,928

Flat roof extension - £21,928

Garage conversion - £15,928

Hip to gable loft conversion - £41,928

Bungalow loft conversion - £28,928

Dormer loft conversion - £41,928

Swimming pool - £80,928

Mansard loft conversion - £51,928

Concrete foundation - £6,178

Underpinning - £17,428

Two storey extension - £87,892

Basement conversion - £36,690

Side return extension - £40,690

Loft conversion - £33,075

Garage - £18,428

Single storey extension - £53,560

Outbuilding - £9,928

RSJ installation - £2,128

Kitchen extension - £41,928
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