From £6,298
Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in TN13. No obligation free quotes...
From £6,130
Experienced extension builder ready to quote for your work. CIA Construction Limited is the best extension builder in TN13. No obligation free quot...
From £6,314
Hyde Building Ltd are here to help customers who need an Extension Builder in TN13. We offer a competitive rate to complete all your extension buil...
From £7,274
Buci builders ltd is a trusted extension builder serving customers in TN13 and the surrounding area. Contact us to today to get a competitive quote...
From £6,562
Local Boiler Plumbing & Heating Services is an established and experienced local extension builder in TN13. Please contact us for a free, no obliga...
From £6,442
Gb construction are here to help customers who need an Extension Builder in TN13. We offer a competitive rate to complete all your extension build...
From £7,450
Member since August 2025
Banga decoration. Is Base in south London for number of year Banga decoration is a small company. Wich provide an excellent job to the custom...
From £6,434
Experienced extension builder ready to quote for your work. CC&D BUILDING LTD is the best extension builder in TN13. No obligation free quotes and ...
From £6,866
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in TN13 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...

Concrete foundations range from the £6,130 (CIA Construction Limited based in RM18) to £7,450 (Banga Decoration based in CR7) in TN13.
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 TN13 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 Sevenoaks | £38 | £234 |
| Concrete Foundations near Tonbridge | £38 | £254 |
| Concrete Foundations near Tunbridge Wells | £37 | £258 |
| Concrete Foundations near Bexley | £42 | £265 |
| Concrete Foundations near Caterham | £43 | £272 |
| Concrete Foundations near Larkfield | £41 | £253 |
| Concrete Foundations near Bromley | £42 | £265 |
| Concrete Foundations near Dartford | £51 | £273 |
| Concrete Foundations near Croydon | £43 | £267 |
| Concrete Foundations near Northfleet | £41 | £261 |
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 - £17,840

Two storey extension - £88,510

Build a timber frame extension - £26,340

Build a swimming pool - £81,340

Single storey extension - £61,800

Side return extension - £45,325

Install an RSJ - £2,540

Outbuilding - £10,340

Build a Mansard loft conversion - £52,340

Loft conversion - £36,938

Build a kitchen extension - £42,340

Hip to gable loft conversion - £42,340

Granny annexe - £87,340

Garden office - £10,340

Convert a Garage - £16,340

Garage - £18,840

Build a flat roof extension - £22,340

Build a dormer loft conversion - £42,340

Concrete foundations - £6,590

Convert a bungalow loft - £29,340

Convert a basement - £41,325