From £17,540
5 Star Roofing Manchester is an established and experienced local extension builder in M25. Please contact us for a free, no obligation quote and c...
From £17,324
Relax... you have found a reliable extension builder in M25. MCH BUILDERS T/A is a friendly and reliable company based in M25 who consider no job a...
From £17,524
Need to find an Extension Builder near you for all your extension buildering work?
MW Building Services provides a local, trusted extension...
From £16,844
Trading for over 11 years and 17 years expierience in the building trade, check f book page and google business page to see all my 5 star reviews&n...
From £17,380
IKIZ Jewellery is an established and experienced local extension builder in M25. Please contact us for a free, no obligation quote and competitive ...
From £17,108
Smarter Home 4U Limited is an established and experienced local extension builder in M25. Please contact us for a free, no obligation quote and com...
From £17,100
Trusted and professional extension builder in M25. Experienced in all extension buildering work and keeping within budget and on quote. Urban Stone...
From £17,484
A wholesale shopping is an individual with a huge number of followers related to fashion and has the ability to influence the thought and purchase ...
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 £17,292
Need to find an Extension Builder near you for all your extension buildering work?
DC Contractors provides a local, trusted extension build...

Underpinning ranges from £16,844 (M Taylor Brickwork based in BL9) to £17,540 (5 Star Roofing Manchester based in M25), 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 M25 by posting a job with HaMuch and we will send it to extension builders in M25.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Prestwich | £31 | £234 |
| Underpin A Building near Whitefield | £31 | £229 |
| Underpin A Building near Swinton | £32 | £235 |
| Underpin A Building near Salford | £32 | £238 |
| Underpin A Building near Radcliffe | £30 | £220 |
| Underpin A Building near Manchester | £32 | £236 |
| Underpin A Building near Middleton | £31 | £227 |
| Underpin A Building near Eccles | £32 | £237 |
| Underpin A Building near Bury | £30 | £220 |
| Underpin A Building near Heywood | £30 | £222 |
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 - £17,306

Two storey extension - £87,708

Build a timber frame extension - £25,806

Build a swimming pool - £80,806

Single storey extension - £51,112

Side return extension - £39,313

Install an RSJ - £2,006

Outbuilding - £9,806

Build a Mansard loft conversion - £51,806

Loft conversion - £31,928

Build a kitchen extension - £41,806

Hip to gable loft conversion - £41,806

Granny annexe - £86,806

Garden office - £9,806

Convert a Garage - £15,806

Garage - £18,306

Build a flat roof extension - £21,806

Build a dormer loft conversion - £41,806

Concrete foundations - £6,056

Convert a bungalow loft - £28,806

Convert a basement - £35,313