From £6,690
Need to find an Extension Builder near you for all your extension buildering work?
Main Construction provides a local, trusted extension bu...
From £6,122
Need an Extension Builder in Southwater? MPS Home Improvements Ltd has been helping local clients (20 mile radius) with their extension buildering ...
From £6,578
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £6,242
Member since August 2026
H P Building Services Sussex is a one-stop solution for all your extension buildering needs. Establish over 10 years ago and covering 20 miles arou...
From £6,522
Need to find an Extension Builder near you for all your extension buildering work?
DPP Construction (David Price Partnership) provides a lo...
From £6,418
R S Construction (Surrey) is an established extension buildering business in Southwater. We come highly recommended and provide competitive quotes ...
From £6,282
We are a family run business we 40 years experience delivering multiple projects from new developments . Extension. Loft conversion. Including foun...
From £6,362
, BN18
Futureways Design and Build are here to help customers who need an Extension Builder in Southwater. We offer a competitive rate to complete all you...
From £6,450
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £6,658
Garage Door Repairs is an established extension buildering business in Southwater. We come highly recommended and provide competitive quotes for yo...

Concrete foundations range from the £6,122 (MPS Home Improvements Ltd based in RH14) to £6,690 (Main Construction based in BN12) in Southwater.
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 Southwater 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 Horsham | £38 | £265 |
| Concrete Foundations near Mid Sussex | £35 | £261 |
| Concrete Foundations near Crawley | £38 | £255 |
| Concrete Foundations near Burgess Hill | £36 | £240 |
| Concrete Foundations near Haywards Heath | £35 | £256 |
| Concrete Foundations near Horley | £38 | £258 |
| Concrete Foundations near Shoreham-by-Sea | £36 | £250 |
| Concrete Foundations near Lancing | £37 | £251 |
| Concrete Foundations near Reigate | £40 | £270 |
| Concrete Foundations near East Grinstead | £37 | £259 |
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 - £17,682

Two storey extension - £88,274

Build a timber frame extension - £26,182

Build a swimming pool - £81,182

Single storey extension - £58,648

Side return extension - £43,552

Install an RSJ - £2,382

Outbuilding - £10,182

Build a Mansard loft conversion - £52,182

Loft conversion - £35,460

Build a kitchen extension - £42,182

Hip to gable loft conversion - £42,182

Granny annexe - £87,182

Garden office - £10,182

Convert a Garage - £16,182

Garage - £18,682

Build a flat roof extension - £22,182

Build a dormer loft conversion - £42,182

Concrete foundations - £6,432

Convert a bungalow loft - £29,182

Convert a basement - £39,552