From £6,562
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £6,642
Need an Extension Builder in Chalfont St Giles? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering job...
From £6,530
Member since August 2026
Relax... you have found a reliable extension builder in Chalfont St Giles. ABC Associates STRUCTURES 4 U is a friendly and reliable company based i...
From £6,442
Need an Extension Builder in Chalfont St Giles? VA Structures has been helping local clients (10 mile radius) with their extension buildering jobs ...
From £6,530
Trusted and professional extension builder in Chalfont St Giles. Experienced in all extension buildering work and keeping within budget and on quot...
From £6,682
DP Services is a fully insured friendly local company which has been trading since 2002 and delivers high quality building work in domestic extensi...
From £6,554
Hi we have 15 years of experience in building and construction industry our specialization is bathrooms and renovations please have a look at the w...
From £6,674
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £6,170
NISUP BUILDING SERVICES Company specializes in the domestic and commercial building industry :1. Refurbishm...
From £6,682
Krystian Wojasiewicz is a trusted extension builder serving customers in Chalfont St Giles and the surrounding area. Contact us to today to get a c...

Concrete foundations range from the £6,170 (Nisup Building Services based in HA8) to £6,682 (DP Services based in RG41) in Chalfont St Giles.
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 Chalfont St Giles 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 Gerrards Cross | £43 | £282 |
| Concrete Foundations near Rickmansworth | £42 | £278 |
| Concrete Foundations near Chesham | £42 | £277 |
| Concrete Foundations near Hazlemere | £40 | £272 |
| Concrete Foundations near Watford | £43 | £278 |
| Concrete Foundations near Dacorum | £42 | £269 |
| Concrete Foundations near Hillingdon | £63 | £276 |
| Concrete Foundations near Berkhamsted | £41 | £263 |
| Concrete Foundations near Hemel Hempstead | £42 | £270 |
| Concrete Foundations near High Wycombe | £39 | £272 |
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 - £17,797

Two storey extension - £88,445

Build a timber frame extension - £26,297

Build a swimming pool - £81,297

Single storey extension - £60,936

Side return extension - £44,839

Install an RSJ - £2,497

Outbuilding - £10,297

Build a Mansard loft conversion - £52,297

Loft conversion - £36,533

Build a kitchen extension - £42,297

Hip to gable loft conversion - £42,297

Granny annexe - £87,297

Garden office - £10,297

Convert a Garage - £16,297

Garage - £18,797

Build a flat roof extension - £22,297

Build a dormer loft conversion - £42,297

Concrete foundations - £6,547

Convert a bungalow loft - £29,297

Convert a basement - £40,839