From £6,298
Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in TN15. No obligation free quotes...
From £7,274
Buci builders ltd is a trusted extension builder serving customers in TN15 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 TN15. Please contact us for a free, no obliga...
From £6,442
Gb construction are here to help customers who need an Extension Builder in TN15. 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 TN15. No obligation free quotes and ...
From £6,866
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in TN15 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 £6,410
Homeowners look no further if you want a qualified extension builder to work in your home. LCD Pixel Construction Ltd are tidy and neat, providing ...
From £6,170
Masonic Plumbing and Heating Ltd are here to help customers who need an Extension Builder in TN15. We offer a competitive rate to complete all your...

Concrete foundations range from the £6,130 (Can design and Construction based in Ig11) to £7,450 (Banga Decoration based in CR7) in TN15.
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 TN15 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 Larkfield | £41 | £253 |
| Concrete Foundations near Northfleet | £41 | £261 |
| Concrete Foundations near Gravesend | £40 | £260 |
| Concrete Foundations near Dartford | £51 | £273 |
| Concrete Foundations near Bexley | £42 | £265 |
| Concrete Foundations near Maidstone | £40 | £255 |
| Concrete Foundations near Rochester | £39 | £254 |
| Concrete Foundations near Tunbridge Wells | £37 | £258 |
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 - £17,854

Two storey extension - £88,530

Build a timber frame extension - £26,354

Build a swimming pool - £81,354

Single storey extension - £62,072

Side return extension - £45,478

Install an RSJ - £2,554

Outbuilding - £10,354

Build a Mansard loft conversion - £52,354

Loft conversion - £37,065

Build a kitchen extension - £42,354

Hip to gable loft conversion - £42,354

Granny annexe - £87,354

Garden office - £10,354

Convert a Garage - £16,354

Garage - £18,854

Build a flat roof extension - £22,354

Build a dormer loft conversion - £42,354

Concrete foundations - £6,604

Convert a bungalow loft - £29,354

Convert a basement - £41,478