From £16,972
Trusted and professional extension builder in WA5. Experienced in all extension buildering work and keeping within budget and on quote. Jones Lands...
From £17,172
J.M.C Building Services is a trusted extension builder serving customers in WA5 and the surrounding area. Contact us to today to get a competitive ...
From £17,276
Relax... you have found a reliable extension builder in WA5. David Anderson Builders is a friendly and reliable company based in WA5 who consider n...
From £17,292
Need to find an Extension Builder near you for all your extension buildering work?
DC Contractors provides a local, trusted extension build...
From £17,460
Need to find an Extension Builder near you for all your extension buildering work?
ESBP Specialists Ltd provides a local, trusted extension...
From £17,532
Tong Building & Joinery Ltd are here to help customers who need an Extension Builder in WA5. We offer a competitive rate to complete all your exten...
From £17,556
AJ Solutions is an established extension buildering business in WA5. We come highly recommended and provide competitive quotes for your work.
From £17,396
Need to find an Extension Builder near you for all your extension buildering work?
J & C Barker (Builders) Limited provides a local, truste...
From £17,084
Amak Construction is an established and experienced local extension builder in WA5. Please contact us for a free, no obligation quote and competiti...
From £17,268
Wallplas is an established extension buildering business in WA5. We come highly recommended and provide competitive quotes for your work.

Underpinning ranges from £16,972 (Jones Landscaping based in L30) 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 WA5 by posting a job with HaMuch and we will send it to extension builders in WA5.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Warrington | £31 | £222 |
| Underpin A Building near Newton-le-Willows | £31 | £221 |
| Underpin A Building near Widnes | £31 | £220 |
| Underpin A Building near Halton | £31 | £220 |
| Underpin A Building near Runcorn | £33 | £228 |
| Underpin A Building near Golborne | £30 | £222 |
| Underpin A Building near St Helens | £31 | £224 |
| Underpin A Building near Ashton-in-Makerfield | £30 | £220 |
| Underpin A Building near Prescot | £31 | £223 |
| Underpin A Building near Huyton with Roby | £31 | £225 |
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 - £17,301

Two storey extension - £87,701

Build a timber frame extension - £25,801

Build a swimming pool - £80,801

Single storey extension - £51,016

Side return extension - £39,259

Install an RSJ - £2,001

Outbuilding - £9,801

Build a Mansard loft conversion - £51,801

Loft conversion - £31,883

Build a kitchen extension - £41,801

Hip to gable loft conversion - £41,801

Granny annexe - £86,801

Garden office - £9,801

Convert a Garage - £15,801

Garage - £18,301

Build a flat roof extension - £21,801

Build a dormer loft conversion - £41,801

Concrete foundations - £6,051

Convert a bungalow loft - £28,801

Convert a basement - £35,259