From £16,660
MKS Builders Ltd is an established extension buildering business in OL11. We come highly recommended and provide competitive quotes for your work.<...
From £17,324
Jnc has been going for 15 years now we have over 10 lads at any time working for us . We Speselied in new building and Exstenshons
From £17,516
Experienced extension builder ready to quote for your work. Tetlow Construction Ltd is the best extension builder in OL11. No obligation free quote...
From £17,604
Need to find an Extension Builder near you for all your extension buildering work?
Tetrosyl provides a local, trusted extension buildering ...
From £17,316
We are a local building company who specialises in keeping our customers happy we are reliable friendly. We carry out all types of building wo...
From £17,092
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,244
H.B.S is an established extension buildering business in OL11. We come highly recommended and provide competitive quotes for your work.
From £16,460
Member since November 2019
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,436
PLP CONSTRUCTION LTD is an established and experienced local extension builder in OL11. Please contact us for a free, no obligation quote and compe...
From £17,556
I G Smedley is an established and experienced local extension builder in OL11. Please contact us for a free, no obligation quote and competitive ra...

Underpinning ranges from £16,460 (Aquatec Builder based in OL10) to £17,604 (Tetrosyl based in OL16), 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 OL11 by posting a job with HaMuch and we will send it to extension builders in OL11.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Rochdale | £30 | £221 |
| Underpin A Building near Heywood | £30 | £222 |
| Underpin A Building near Royton | £30 | £225 |
| Underpin A Building near Middleton | £31 | £227 |
| Underpin A Building near Chadderton | £31 | £224 |
| Underpin A Building near Bury | £30 | £220 |
| Underpin A Building near Oldham | £31 | £228 |
| Underpin A Building near Whitefield | £31 | £229 |
| Underpin A Building near Prestwich | £31 | £234 |
| Underpin A Building near Failsworth | £35 | £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 - £17,221

Two storey extension - £87,581

Build a timber frame extension - £25,721

Build a swimming pool - £80,721

Single storey extension - £49,416

Side return extension - £38,359

Install an RSJ - £1,921

Outbuilding - £9,721

Build a Mansard loft conversion - £51,721

Loft conversion - £31,133

Build a kitchen extension - £41,721

Hip to gable loft conversion - £41,721

Granny annexe - £86,721

Garden office - £9,721

Convert a Garage - £15,721

Garage - £18,221

Build a flat roof extension - £21,721

Build a dormer loft conversion - £41,721

Concrete foundations - £5,971

Convert a bungalow loft - £28,721

Convert a basement - £34,359