From £6,258
Over 35 years experience
We are Gas Safe registered
We are Verified
We pride ourselves on great custom...
1 review
From £6,442
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
"Did callout made safe my elctrical work thanks" - reviewed 16/05/23, REECYRUSSO
From £6,562
Local Boiler Plumbing & Heating Services is an established and experienced local extension builder in CM15. Please contact us for a free, no obliga...
From £6,434
Experienced extension builder ready to quote for your work. CC&D BUILDING LTD is the best extension builder in CM15. No obligation free quotes and ...
From £6,434
Relax... you have found a reliable extension builder in CM15. First guard Roofing is a friendly and reliable company based in CM15 who consider no ...
From £6,866
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in CM15 and the surrounding area. Contact us to today to get a com...
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 £6,498
At Building Services Contractors we pride ourselves on an efficient and friendly service, and strive to achieve 100% customer satisfaction.
From £7,834
Propello is an established and experienced local extension builder in CM15. Please contact us for a free, no obligation quote and competitive rate...
From £6,674
Nouvell Decor is a trusted extension builder serving customers in CM15 and the surrounding area. Contact us to today to get a competitive quote for...

Concrete foundations range from the £6,130 (Can design and Construction based in Ig11) to £7,834 (Propello based in E17) in CM15.
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 CM15 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 Brentwood | £39 | £255 |
| Concrete Foundations near Billericay | £38 | £248 |
| Concrete Foundations near Romford | £45 | £274 |
| Concrete Foundations near Basildon | £39 | £251 |
| Concrete Foundations near South Ockendon | £58 | £276 |
| Concrete Foundations near Chelmsford | £38 | £258 |
| Concrete Foundations near Wickford | £39 | £255 |
| Concrete Foundations near Stanford-le-Hope | £40 | £254 |
| Concrete Foundations near Loughton | £44 | £273 |
| Concrete Foundations near Thurrock | £41 | £260 |
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 - £17,863

Two storey extension - £88,545

Build a timber frame extension - £26,363

Build a swimming pool - £81,363

Single storey extension - £62,264

Side return extension - £45,586

Install an RSJ - £2,563

Outbuilding - £10,363

Build a Mansard loft conversion - £52,363

Loft conversion - £37,155

Build a kitchen extension - £42,363

Hip to gable loft conversion - £42,363

Granny annexe - £87,363

Garden office - £10,363

Convert a Garage - £16,363

Garage - £18,863

Build a flat roof extension - £22,363

Build a dormer loft conversion - £42,363

Concrete foundations - £6,613

Convert a bungalow loft - £29,363

Convert a basement - £41,586