From £6,562
Local Boiler Plumbing & Heating Services is an established and experienced local extension builder in CM4. Please contact us for a free, no obligat...
From £6,434
Experienced extension builder ready to quote for your work. CC&D BUILDING LTD is the best extension builder in CM4. No obligation free quotes and m...
From £6,866
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in CM4 and the surrounding area. Contact us to today to get a comp...
From £6,130
Member since August 2025
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £7,834
Propello is an established and experienced local extension builder in CM4. Please contact us for a free, no obligation quote and competitive rates...
From £6,674
Nouvell Decor is a trusted extension builder serving customers in CM4 and the surrounding area. Contact us to today to get a competitive quote for ...
From £6,562
skilled worker who specializes in completing a wide range of building and renovation projects
From £6,490
M&J Brickwork Ltd are a Chelmsford based Bricklaying & General Building company that operate throughout the Essex and South London...
From £6,450
Relax... you have found a reliable extension builder in CM4. Derryard Construction Ltd is a friendly and reliable company based in CM4 who consider...
From £6,218
B J CULLEN BUILDERS are here to help customers who need an Extension Builder in CM4. We offer a competitive rate to complete all your extension bui...

Concrete foundations range from the £6,130 (Can design and Construction based in Ig11) to £7,834 (Propello based in E17) in CM4.
Comparing extension builders estimates for laying concrete foundations gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Find out the exact cost of laying concrete foundations in CM4 by posting a job with HaMuch. We will send it to extension builders who can give you a detailed quote.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Concrete Foundations near Billericay | £38 | £248 |
| Concrete Foundations near Brentwood | £39 | £255 |
| Concrete Foundations near Chelmsford | £38 | £258 |
| Concrete Foundations near Wickford | £39 | £255 |
| Concrete Foundations near Basildon | £39 | £251 |
| Concrete Foundations near Stanford-le-Hope | £40 | £254 |
| Concrete Foundations near Romford | £45 | £274 |
| Concrete Foundations near Rayleigh | £39 | £252 |
| Concrete Foundations near Thundersley | £38 | £251 |
| Concrete Foundations near South Ockendon | £58 | £276 |
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.

Underpin a building - £17,872

Two storey extension - £88,558

Build a timber frame extension - £26,372

Build a swimming pool - £81,372

Single storey extension - £62,440

Side return extension - £45,685

Install an RSJ - £2,572

Outbuilding - £10,372

Build a Mansard loft conversion - £52,372

Loft conversion - £37,238

Build a kitchen extension - £42,372

Hip to gable loft conversion - £42,372

Granny annexe - £87,372

Garden office - £10,372

Convert a Garage - £16,372

Garage - £18,872

Build a flat roof extension - £22,372

Build a dormer loft conversion - £42,372

Concrete foundations - £6,622

Convert a bungalow loft - £29,372

Convert a basement - £41,685