From £17,068
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,228
Experienced extension builder ready to quote for your work. TowerView Properties is the best extension builder in BL0. No obligation free quotes an...
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 £17,388
Experienced extension builder ready to quote for your work. Unity Building Services is the best extension builder in BL0. No obligation free quotes...
From £17,100
Chino's Maintenance is a trusted extension builder serving customers in BL0 and the surrounding area. Contact us to today to get a competitive quot...
From £17,084
Amak Construction is an established and experienced local extension builder in BL0. Please contact us for a free, no obligation quote and competiti...
From £17,372
SMH Build & Renovate is an established extension buildering business in BL0. We come highly recommended and provide competitive quotes for your wor...
From £17,420
Zero Gravity Design is a disruptive design studio born in Manchester. We’re moon walking, space shaping, interior creatives. We pride ourselves i...
From £17,388
Broadley Construction is an established extension buildering business in BL0. We come highly recommended and provide competitive quotes for your 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...

Underpinning ranges from £17,068 (Passive Building Structures based in BL0) to £17,420 (Zero Gravity Design based in BL9), 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 BL0 by posting a job with HaMuch and we will send it to extension builders in BL0.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Bury | £30 | £220 |
| Underpin A Building near Rawtenstall | £31 | £230 |
| Underpin A Building near Heywood | £30 | £222 |
| Underpin A Building near Radcliffe | £30 | £220 |
| Underpin A Building near Bolton | £31 | £219 |
| Underpin A Building near Whitefield | £31 | £229 |
| Underpin A Building near Rochdale | £30 | £221 |
| Underpin A Building near Darwen | £34 | £253 |
| Underpin A Building near Farnworth | £30 | £219 |
| Underpin A Building near Accrington | £33 | £245 |
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 - £17,254

Two storey extension - £87,630

Build a timber frame extension - £25,754

Build a swimming pool - £80,754

Single storey extension - £50,072

Side return extension - £38,728

Install an RSJ - £1,954

Outbuilding - £9,754

Build a Mansard loft conversion - £51,754

Loft conversion - £31,440

Build a kitchen extension - £41,754

Hip to gable loft conversion - £41,754

Granny annexe - £86,754

Garden office - £9,754

Convert a Garage - £15,754

Garage - £18,254

Build a flat roof extension - £21,754

Build a dormer loft conversion - £41,754

Concrete foundations - £6,004

Convert a bungalow loft - £28,754

Convert a basement - £34,728