From £17,780
Westerham, TN16
M J STANFORD BUILDING SERVICES are here to help customers who need an Extension Builder in Westerham. We offer a competitive rate to complete all y...
From £17,404
Westerham, TN16
Trusted and professional extension builder in Westerham. Experienced in all extension buildering work and keeping within budget and on quote. T WIC...
From £17,700
Whether you are planning a new home build, single or double storey house extension, additional lounge/bedroom extension we can help. Our Kent based...
From £17,764
Our building services company Accuracy Developments Ltd has over 25 years’ experience. We have been helping customers in Westerham and the surrou...
From £17,388
Relax... you have found a reliable extension builder in Westerham. A C Ribbens Building & Decorating is a friendly and reliable company based in We...
From £18,052
Westerham, TN16
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,388
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,580
Need to find an Extension Builder near you for all your extension buildering work?
Egidos Limited provides a local, trusted extension build...
From £17,844
Urban Space Projects is a trusted extension builder serving customers in Westerham and the surrounding area. Contact us to today to get a competiti...
From £17,396
W HARDY BUILDERS LTD is a trusted extension builder serving customers in Westerham and the surrounding area. Contact us to today to get a competiti...

Underpinning ranges from £17,388 (A C Ribbens Building & Decorating based in TN16) to £18,052 (Asprey Homes Ltd based in TN16), but the final cost will depend on the method of underpinning used, how much of your foundations need underpinning and where you live.
Comparing extension builders estimates for underpinning gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get quotes to underpin your home in Westerham by posting a job with HaMuch and we will send it to extension builders in Westerham.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Caterham | £43 | £272 |
| Underpin A Building near Sevenoaks | £38 | £234 |
| Underpin A Building near Croydon | £43 | £267 |
| Underpin A Building near Bromley | £42 | £265 |
| Underpin A Building near Redhill | £41 | £269 |
| Underpin A Building near Bexley | £41 | £265 |
| Underpin A Building near Reigate & Banstead | £41 | £271 |
| Underpin A Building near Sutton | £43 | £273 |
| Underpin A Building near Lewisham | £43 | £268 |
| Underpin A Building near Reigate | £40 | £270 |
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 - £17,630

Two storey extension - £88,194

Build a timber frame extension - £26,130

Build a swimming pool - £81,130

Single storey extension - £57,592

Side return extension - £42,958

Install an RSJ - £2,330

Outbuilding - £10,130

Build a Mansard loft conversion - £52,130

Loft conversion - £34,965

Build a kitchen extension - £42,130

Hip to gable loft conversion - £42,130

Granny annexe - £87,130

Garden office - £10,130

Convert a Garage - £16,130

Garage - £18,630

Build a flat roof extension - £22,130

Build a dormer loft conversion - £42,130

Concrete foundations - £6,380

Convert a bungalow loft - £29,130

Convert a basement - £38,958