Find affordable extension builders near CM23
- Local extension builders CM23
- Job estimates from extension builders near you
- Compare CM23 extension builders rates
| Low | Average | High |
|---|---|---|
| £20 | £35 | £40 |
| Average hourly rate from 10 extension builders in CM23 ex VAT or callout | ||
Average CM23 extension builder hourly rate is £35
Range from the cheapest, mostly independent, £20 per hour and £100 per day (V S M Property Services Ltd) to the dearest, normally the best, £40 per hour and £250 per day (Nevill Design & 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 CM23
D C Salsbury Builders
£36/hour
£234/day
D C Salsbury Builders is an established and experienced local extension builder in CM23. Please contact us for a free, no obligation quote and competitive rates. Covering a 20 mile radius.
Traylen Construction
£36/hour
£232/day
Extension Builder in CM23, CM23.
Need an Extension Builder in CM23? Traylen Construction has been helping local clients (20 mile radius) with their jobs for many years. Get a quote today.
Linear Carpentry and Building
£38/hour
£242/day
Extension Builder in Hertfordshire, CM23. Working within a 20 mile radius.
Linear Carpentry and Building has been helping customers in Hertfordshire and the surrounding area by providing professional and trustworthy building services. We know it can be hard to find a builder that you can rely on. Linear Carpentr...
Wade developments
£38/hour
£243/day
Wade developments are here to help customers who need an Extension Builder in CM23. We offer a competitive rate to complete all your jobs to professional standards.
Nevill Design & Build
£40/hour
£250/day
Extension Builder in Hertfordshire, CM23. Working within a 20 mile radius.
Nevill Design & Build specialises in high-quality house extensions, loft conversions, structural alterations, and full refurbishments. We’ve delivered projects ranging from kitchen extensions and garage conversions to full new-builds. We’re ex...
Areas Covered - We cover Bishop’s Stortford, Harlow, Sawbridgeworth, Saffron Walden, Epping, Chelmsford, and surrounding areas throughout Hertfordshire and Essex.
Nevill Design & Build Ltd
£35/hour
£230/day
Extension Builder in CM23, CM23. Working within a 20 mile radius.
If you are looking for a CM23 Extension Builder and you need something replaced, fitted, or fixed, contact Nevill Design & Build Ltd today. We are competitively priced and recommended by CM23 customers for all work.
V S M Property Services Ltd
£20/hour
£100/day
V S M Property Services Ltd are extension builders in CM23 who work within a 20 mile radius. Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of work in CM23 and testimonials.
Stewart & Sons Ltd.
£38/hour
£243/day
Extension Builder in CM23, CM24.
Need an Extension Builder in CM23? Stewart & Sons Ltd. has been helping local clients (20 mile radius) with their jobs for many years. Get a quote today.
Ratcliff & Burridge Construction Ltd
£36/hour
£234/day
Trusted and professional extension builder in CM23. Experienced in all work and keeping within budget and on quote. Ratcliff & Burridge Construction Ltd have many happy customers in CM23, testimonials available.
JKL Construction & Carpentry Ltd
£37/hour
£236/day
Need to find an Extension Builder near you for all your work?
JKL Construction & Carpentry Ltd provides a local, trusted service in and around CM23. Homeowners and landlords choose us for our excellent knowledge, experience and reliability plus reasonable call-out fees if applicable and no obligation quotes.
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
Compare CM23 extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Bishop's Stortford | £36 | £229 |
| Extension Builders near Harlow | £37 | £247 |
| Extension Builders near Ware | £40 | £252 |
| Extension Builders near East Hertfordshire | £37 | £242 |
| Extension Builders near Hoddesdon | £40 | £252 |
| Extension Builders near Hertford | £39 | £247 |
| Extension Builders near Cheshunt | £41 | £244 |
| Extension Builders near Stevenage | £37 | £239 |
| Extension Builders near Welwyn Garden City | £36 | £229 |
| Extension Builders near Epping Forest | £38 | £237 |
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 - £25,792

Garden office - £9,792

Granny annexe - £86,792

Flat roof extension - £21,792

Garage conversion - £15,792

Hip to gable loft conversion - £41,792

Bungalow loft conversion - £28,792

Dormer loft conversion - £41,792

Swimming pool - £80,792

Mansard loft conversion - £51,792

Concrete foundation - £6,042

Underpinning - £17,292

Two storey extension - £87,688

Basement conversion - £35,160

Side return extension - £39,160

Loft conversion - £31,800

Garage - £18,292

Single storey extension - £50,840

Outbuilding - £9,792

RSJ installation - £1,992

Kitchen extension - £41,792
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