From £16,804
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,444
Experienced extension builder ready to quote for your work. NIGEL WILLIAMS BUILDING LTD is the best extension builder in CH66. No obligation free q...
From £17,236
Brilliant Homes is an established and experienced local extension builder in CH66. Please contact us for a free, no obligation quote and competitiv...
From £17,180
Oliver-Ricci is an established and experienced local extension builder in CH66. Please contact us for a free, no obligation quote and competitive r...
From £17,324
P M Harris Roofing and Joinery Services is an established extension buildering business in CH66. We come highly recommended and provide competitive...
From £17,124
Glassar Projects is an established and experienced local extension builder in CH66. Please contact us for a free, no obligation quote and competiti...
From £17,196
G P Roofing & Building Service is a trusted extension builder serving customers in CH66 and the surrounding area. Contact us to today to get a comp...
From £17,084
Experienced extension builder ready to quote for your work. Matthew Hannigan Garage Doors is the best extension builder in CH66. No obligation free...
From £17,268
A WALL BUILDING CONTRACTOR are here to help customers who need an Extension Builder in CH66. We offer a competitive rate to complete all your exten...
From £17,100
Need to find an Extension Builder near you for all your extension buildering work?
Zibi Home & Garden Services provides a local, trusted ex...

Underpinning ranges from £16,804 (DAVID HORTON T/A based in CH65) to £17,444 (NIGEL WILLIAMS BUILDING LTD based in CH63), 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 CH66 by posting a job with HaMuch and we will send it to extension builders in CH66.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Ellesmere Port | £31 | £214 |
| Underpin A Building near Bebington | £31 | £222 |
| Underpin A Building near Chester | £32 | £220 |
| Underpin A Building near Connah's Quay | £33 | £229 |
| Underpin A Building near Heswall | £30 | £213 |
| Underpin A Building near Hawarden | £33 | £228 |
| Underpin A Building near Wirral | £31 | £219 |
| Underpin A Building near Birkenhead | £33 | £232 |
| Underpin A Building near Liverpool | £33 | £232 |
| Underpin A Building near Vale Royal | £35 | £251 |
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 - £17,176

Two storey extension - £87,514

Build a timber frame extension - £25,676

Build a swimming pool - £80,676

Single storey extension - £48,520

Side return extension - £37,855

Install an RSJ - £1,876

Outbuilding - £9,676

Build a Mansard loft conversion - £51,676

Loft conversion - £30,713

Build a kitchen extension - £41,676

Hip to gable loft conversion - £41,676

Granny annexe - £86,676

Garden office - £9,676

Convert a Garage - £15,676

Garage - £18,176

Build a flat roof extension - £21,676

Build a dormer loft conversion - £41,676

Concrete foundations - £5,926

Convert a bungalow loft - £28,676

Convert a basement - £33,855