From £17,228
Need to find an Extension Builder near you for all your extension buildering work?
W F CLAYTON & CO LTD provides a local, trusted extension...
From £17,220
Need an Extension Builder in LL58? Hughes Construction has been helping local clients (20 mile radius) with their extension buildering jobs for man...
From £17,020
Relax... you have found a reliable extension builder in LL58. Property Maintenance Solutions is a friendly and reliable company based in LL58 who c...
From £17,244
Fiting of door internal/external All joinery work from new joists to fitting off skirting boards Kitchen fitting Staircase or replac...
From £17,300
Need an Extension Builder in LL58? Chris's Roofing & Property Maintenance has been helping local clients (20 mile radius) with their extension buil...
From £17,028
Glyndwr Roofing & Building Services are here to help customers who need an Extension Builder in LL58. We offer a competitive rate to complete all y...
From £17,076
Relax... you have found a reliable extension builder in LL58. UK Leisure Living Ltd is a friendly and reliable company based in LL58 who consider n...
From £16,756
Building & Flat Roofing Contractors is a trusted extension builder serving customers in LL58 and the surrounding area. Contact us to today to get a...

Underpinning ranges from £16,756 (Building & Flat Roofing Contractors based in LL54) to £17,300 (Chris's Roofing & Property Maintenance based in LL31), 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 LL58 by posting a job with HaMuch and we will send it to extension builders in LL58.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Conwy | £24 | £184 |
| Underpin A Building near Conway | £24 | £184 |
| Underpin A Building near Llandudno | £24 | £184 |
| Underpin A Building near Colwyn Bay | £24 | £184 |
| Underpin A Building near Rhyl | £24 | £178 |
| Underpin A Building near Prestatyn | £24 | £179 |
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 - £17,109

Two storey extension - £87,414

Build a timber frame extension - £25,609

Build a swimming pool - £80,609

Single storey extension - £47,180

Side return extension - £37,101

Install an RSJ - £1,809

Outbuilding - £9,609

Build a Mansard loft conversion - £51,609

Loft conversion - £30,084

Build a kitchen extension - £41,609

Hip to gable loft conversion - £41,609

Granny annexe - £86,609

Garden office - £9,609

Convert a Garage - £15,609

Garage - £18,109

Build a flat roof extension - £21,609

Build a dormer loft conversion - £41,609

Concrete foundations - £5,859

Convert a bungalow loft - £28,609

Convert a basement - £33,101