Find affordable extension builders near TW20
- Local extension builders TW20
- Job estimates from extension builders near you
- Local Extension Builders in London Boroughs
| Low | Average | High |
|---|---|---|
| £20 | £35 | £38 |
| Average hourly rate from 8 extension builders in TW20 ex VAT or callout | ||
Average TW20 extension builder hourly rate is £35
Range from the cheapest, mostly independent, £20 per hour and £200 per day (Astar Building) to the dearest, normally the best, £38 per hour and £245 per day (Keay Roofing Services Ltd).
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 TW20
Keay Roofing Services Ltd
11 Larksfield, Englefield Green,, Egham, TW20
£38/hour
£245/day
Extension Builder in TW20, TW20.
Need an Extension Builder in TW20? Keay Roofing Services Ltd has been helping local clients (10 mile radius) with their jobs for many years. Get a quote today.
"Outbuilding"
STAINES-UPON-THAMES
Complete Renovations Ltd
£36/hour
£236/day
Complete Renovations Ltd are here to help customers who need an Extension Builder in TW20. We offer a competitive rate to complete all your jobs to professional standards.
Concept Construction
£37/hour
£235/day
Concept Construction are here to help customers who need an Extension Builder in TW20. We offer a competitive rate to complete all your jobs to professional standards.
Kandy Build and Construction Ltd
Egham TW20
£37/hour
£237/day
Extension Builder in TW20, TW20. Working within a 10 mile radius.
Kandy Build and Construction Ltd is an established business in TW20. We come highly recommended and provide competitive quotes for your work.
ALPHA OMEGA BUILD LTD
£37/hour
£236/day
ALPHA OMEGA BUILD LTD are here to help customers who need an Extension Builder in TW20. We offer a competitive rate to complete all your jobs to professional standards.
Luxuria Property Ltd
£38/hour
£245/day
Extension Builder in Surrey, GU25. Working within a 20 mile radius.
From 2007 – 2015 David Rudelhoff (Founder and Director) was the Property Manager for a high profile, high net worth family. During that time, in a formal household environment, David managed the large property portfolio, ensuring that both inter...
Astar Building
£20/hour
£200/day
Extension Builder in TW20, TW18 covering a 10 mile radius.
Experienced Extension Builder ready to quote for your work. Astar Building is the best Extension Builder in TW20. No obligation free quotes and many happy customers.
Quickly find an Extension Builder in TW20
Use these steps to find Extension Builders in TW20 for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in TW20. 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 TW20 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 - £25,872

Garden office - £9,872

Granny annexe - £86,872

Flat roof extension - £21,872

Garage conversion - £15,872

Hip to gable loft conversion - £41,872

Bungalow loft conversion - £28,872

Dormer loft conversion - £41,872

Swimming pool - £80,872

Mansard loft conversion - £51,872

Concrete foundation - £6,122

Underpinning - £17,372

Two storey extension - £87,808

Basement conversion - £36,060

Side return extension - £40,060

Loft conversion - £32,550

Garage - £18,372

Single storey extension - £52,440

Outbuilding - £9,872

RSJ installation - £2,072

Kitchen extension - £41,872
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