From £17,276
Relax... you have found a reliable extension builder in Northwich. David Anderson Builders is a friendly and reliable company based in Northwich wh...
From £17,532
Tong Building & Joinery Ltd are here to help customers who need an Extension Builder in Northwich. We offer a competitive rate to complete all your...
From £17,556
AJ Solutions is an established extension buildering business in Northwich. We come highly recommended and provide competitive quotes for your work....
From £17,212
Here at RC Building Services Ltd we pride ourselves on providing reliable, excellent quality and competitively priced building services. Our priori...
From £17,476
Nathan Thomas Plumbing is an established extension buildering business in Northwich. We come highly recommended and provide competitive quotes for ...
From £17,268
Trusted and professional extension builder in Northwich. Experienced in all extension buildering work and keeping within budget and on quote. B R M...
From £17,108
Relax... you have found a reliable extension builder in Northwich. R A C Gas is a friendly and reliable company based in Northwich who consider no ...
From £17,196
G P Roofing & Building Service is a trusted extension builder serving customers in Northwich and the surrounding area. Contact us to today to get a...
From £17,204
Need an Extension Builder in Northwich? MIDDLETON CONSTRUCTION (NW)LTD has been helping local clients (20 mile radius) with their extension builder...
From £17,268
A WALL BUILDING CONTRACTOR are here to help customers who need an Extension Builder in Northwich. We offer a competitive rate to complete all your ...

Underpinning ranges from £17,108 (R A C Gas based in WA7) to £17,556 (AJ Solutions based in CH1), 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 Northwich by posting a job with HaMuch and we will send it to extension builders in Northwich.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Winsford | £31 | £232 |
| Underpin A Building near Runcorn | £33 | £228 |
| Underpin A Building near Warrington | £31 | £222 |
| Underpin A Building near Altrincham | £32 | £228 |
| Underpin A Building near Crewe | £29 | £224 |
| Underpin A Building near Halton | £31 | £220 |
| Underpin A Building near Wilmslow | £31 | £230 |
| Underpin A Building near Crewe & Nantwich | £28 | £220 |
| Underpin A Building near Widnes | £31 | £220 |
| Underpin A Building near Trafford | £32 | £235 |
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 - £17,310

Two storey extension - £87,714

Build a timber frame extension - £25,810

Build a swimming pool - £80,810

Single storey extension - £51,192

Side return extension - £39,358

Install an RSJ - £2,010

Outbuilding - £9,810

Build a Mansard loft conversion - £51,810

Loft conversion - £31,965

Build a kitchen extension - £41,810

Hip to gable loft conversion - £41,810

Granny annexe - £86,810

Garden office - £9,810

Convert a Garage - £15,810

Garage - £18,310

Build a flat roof extension - £21,810

Build a dormer loft conversion - £41,810

Concrete foundations - £6,060

Convert a bungalow loft - £28,810

Convert a basement - £35,358