From £17,396
HIGHTOWN CONSTRUCTION LTD is an established extension buildering business in Knowsley. We come highly recommended and provide competitive quotes fo...
From £17,300
Event planning interior designer new to buisness platform but have project managed a lot of my own home projects and organised events for birthdays...
From £17,876
We are Aurora Building Company & we are the home improvement company you can depend upon to help transform your home to suit your needs. We spe...
From £17,188
Relax... you have found a reliable extension builder in Knowsley. Hyst is a friendly and reliable company based in Knowsley who consider no job as ...
From £17,804
Experienced extension builder ready to quote for your work. Spectrum is the best extension builder in Knowsley. No obligation free quotes and many ...
From £16,604
Liverpool Direct Builders is a trusted extension builder serving customers in Knowsley and the surrounding area. Contact us to today to get a compe...
From £17,204
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,380
Need to find an Extension Builder near you for all your extension buildering work?
Leabra Construction North West Ltd provides a local, tru...
From £17,372
G. Finnigan Builders is an established extension buildering business in Knowsley. We come highly recommended and provide competitive quotes for you...
From £17,300
McBuild is a trusted extension builder serving customers in Knowsley and the surrounding area. Contact us to today to get a competitive quote for e...

Underpinning ranges from £16,604 (Liverpool Direct Builders based in L14) to £17,876 (Aurora Building company ltd based in L12), 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 Knowsley by posting a job with HaMuch and we will send it to extension builders in Knowsley.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Knowsley | £31 | £221 |
| Underpin A Building near Prescot | £31 | £222 |
| Underpin A Building near Huyton with Roby | £31 | £225 |
| Underpin A Building near Kirkby | £31 | £222 |
| Underpin A Building near St Helens | £31 | £224 |
| Underpin A Building near Widnes | £31 | £220 |
| Underpin A Building near Halton | £31 | £220 |
| Underpin A Building near Bootle | £32 | £223 |
| Underpin A Building near Liverpool | £31 | £222 |
| Underpin A Building near Maghull | £33 | £219 |
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 - £17,342

Two storey extension - £87,764

Build a timber frame extension - £25,842

Build a swimming pool - £80,842

Single storey extension - £51,848

Side return extension - £39,727

Install an RSJ - £2,042

Outbuilding - £9,842

Build a Mansard loft conversion - £51,842

Loft conversion - £32,273

Build a kitchen extension - £41,842

Hip to gable loft conversion - £41,842

Granny annexe - £86,842

Garden office - £9,842

Convert a Garage - £15,842

Garage - £18,342

Build a flat roof extension - £21,842

Build a dormer loft conversion - £41,842

Concrete foundations - £6,092

Convert a bungalow loft - £28,842

Convert a basement - £35,727