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 £17,180
Oliver-Ricci is an established and experienced local extension builder in CH65. Please contact us for a free, no obligation quote and competitive r...
From £17,084
Experienced extension builder ready to quote for your work. Matthew Hannigan Garage Doors is the best extension builder in CH65. No obligation free...
From £17,268
A WALL BUILDING CONTRACTOR are here to help customers who need an Extension Builder in CH65. We offer a competitive rate to complete all your exten...
From £17,236
Brilliant Homes is an established and experienced local extension builder in CH65. Please contact us for a free, no obligation quote and competitiv...
From £17,444
Experienced extension builder ready to quote for your work. NIGEL WILLIAMS BUILDING LTD is the best extension builder in CH65. No obligation free q...
From £17,204
Need an Extension Builder in CH65? MIDDLETON CONSTRUCTION (NW)LTD has been helping local clients (20 mile radius) with their extension buildering j...
From £17,196
G P Roofing & Building Service is a trusted extension builder serving customers in CH65 and the surrounding area. Contact us to today to get a comp...
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...
From £17,324
P M Harris Roofing and Joinery Services is an established extension buildering business in CH65. We come highly recommended and provide competitive...

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 CH65 by posting a job with HaMuch and we will send it to extension builders in CH65.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Ellesmere Port | £28 | £193 |
| Underpin A Building near Chester | £28 | £193 |
| Underpin A Building near Bebington | £27 | £190 |
| Underpin A Building near Connah's Quay | £28 | £195 |
| Underpin A Building near Hawarden | £28 | £196 |
| Underpin A Building near Heswall | £27 | £187 |
| Underpin A Building near Runcorn | £28 | £198 |
| Underpin A Building near Halton | £27 | £193 |
| Underpin A Building near Widnes | £27 | £193 |
| Underpin A Building near Birkenhead | £28 | £200 |
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 - £17,184

Two storey extension - £87,526

Build a timber frame extension - £25,684

Build a swimming pool - £80,684

Single storey extension - £48,680

Side return extension - £37,945

Install an RSJ - £1,884

Outbuilding - £9,684

Build a Mansard loft conversion - £51,684

Loft conversion - £30,788

Build a kitchen extension - £41,684

Hip to gable loft conversion - £41,684

Granny annexe - £86,684

Garden office - £9,684

Convert a Garage - £15,684

Garage - £18,184

Build a flat roof extension - £21,684

Build a dormer loft conversion - £41,684

Concrete foundations - £5,934

Convert a bungalow loft - £28,684

Convert a basement - £33,945