G. Finnigan Builders is an established extension buildering business in L35. We come highly recommended and provide competitive quotes for your wor...
From £17,804
Stephen Waddup
Experienced extension builder ready to quote for your work. Spectrum is the best extension builder in L35. No obligation free quotes and many happy...
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 £17,396
HIGHTOWN CONSTRUCTION LTD is an established extension buildering business in L35. We come highly recommended and provide competitive quotes for you...

Underpinning ranges from £17,300 (Freyaroseofficiallimited based in L36) to £17,804 (Spectrum based in L14), 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 L35 by posting a job with HaMuch and we will send it to extension builders in L35.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Huyton with Roby | £31 | £225 |
| Underpin A Building near Prescot | £31 | £223 |
| Underpin A Building near Knowsley | £31 | £222 |
| Underpin A Building near Widnes | £31 | £220 |
| Underpin A Building near St Helens | £31 | £224 |
| Underpin A Building near Halton | £31 | £220 |
| Underpin A Building near Kirkby | £31 | £224 |
| Underpin A Building near Runcorn | £33 | £228 |
| Underpin A Building near Newton-le-Willows | £31 | £221 |
| Underpin A Building near Warrington | £31 | £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 - £17,487

Two storey extension - £87,981

Build a timber frame extension - £25,987

Build a swimming pool - £80,987

Single storey extension - £54,744

Side return extension - £41,356

Install an RSJ - £2,187

Outbuilding - £9,987

Build a Mansard loft conversion - £51,987

Loft conversion - £33,630

Build a kitchen extension - £41,987

Hip to gable loft conversion - £41,987

Granny annexe - £86,987

Garden office - £9,987

Convert a Garage - £15,987

Garage - £18,487

Build a flat roof extension - £21,987

Build a dormer loft conversion - £41,987

Concrete foundations - £6,237

Convert a bungalow loft - £28,987

Convert a basement - £37,356