From £17,324
Hardbase Construction offer a complete or part package for any of your building, refurbishments or alteration requirements. Keeping an eye on times...
From £17,556
Chichester, PO19
Experienced extension builder ready to quote for your work. 77 Build Ltd is the best extension builder in Chichester. No obligation free quotes and...
From £17,324
Oak Constructions is a trusted extension builder serving customers in Chichester and the surrounding area. Contact us to today to get a competitive...
From £17,292
Need an Extension Builder in Chichester? Bespoke Living Construction Ltd has been helping local clients (20 mile radius) with their extension build...
From £17,276
Been in the building trade for over 30years .have in that time worked all over the country on many different projects.
Have city &...
From £17,196
Chichester, PO19
Need to find an Extension Builder near you for all your extension buildering work?
King and Drury provides a local, trusted extension build...
From £17,276
Chichester, PO19
I have been in the construction industry for 32 years. I am a member of the Federation of Master Builders, have the requisite 3rd party insurance i...
From £17,820
Work in the Bosham,Emsworth,Chichester area,build large or small extensions,allworkmen are top tradesmen,very reliable,leave job area clean on comp...
From £17,508
I'm Sarah Reed, Director at Ministry of the Interior. We are a unique company that provides full project management and interior design services ba...
From £17,452
Imperial Construction Chichester is an established and experienced local extension builder in Chichester. Please contact us for a free, no obligati...

Underpinning ranges from £17,196 (King and Drury based in PO19) to £17,820 (James Building Services based in PO18), 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 Chichester by posting a job with HaMuch and we will send it to extension builders in Chichester.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Chichester | £34 | £242 |
| Underpin A Building near Bognor Regis | £35 | £247 |
| Underpin A Building near Arun | £35 | £241 |
| Underpin A Building near Havant & Waterloo | £35 | £248 |
| Underpin A Building near Havant | £35 | £249 |
| Underpin A Building near Littlehampton | £35 | £244 |
| Underpin A Building near Horndean | £35 | £253 |
| Underpin A Building near Waterlooville | £36 | £250 |
| Underpin A Building near Rustington | £36 | £246 |
| Underpin A Building near Portsmouth | £36 | £250 |
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 - £17,402

Two storey extension - £87,854

Build a timber frame extension - £25,902

Build a swimming pool - £80,902

Single storey extension - £53,048

Side return extension - £40,402

Install an RSJ - £2,102

Outbuilding - £9,902

Build a Mansard loft conversion - £51,902

Loft conversion - £32,835

Build a kitchen extension - £41,902

Hip to gable loft conversion - £41,902

Granny annexe - £86,902

Garden office - £9,902

Convert a Garage - £15,902

Garage - £18,402

Build a flat roof extension - £21,902

Build a dormer loft conversion - £41,902

Concrete foundations - £6,152

Convert a bungalow loft - £28,902

Convert a basement - £36,402