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Relax... you have found a reliable extension builder in Denbighshire. L & J BUILDERS is a friendly and reliable company based in Denbighshire who c...

Underpinning ranges from £17,396 (L & J BUILDERS based in LL15) to £17,396 (L & J BUILDERS based in LL15), 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 Denbighshire by posting a job with HaMuch and we will send it to extension builders in Denbighshire.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Flintshire | £33 | £224 |
| Underpin A Building near Wrexham | £34 | £263 |
| Underpin A Building near Hawarden | £33 | £228 |
| Underpin A Building near Connah's Quay | £33 | £229 |
| Underpin A Building near Vale Royal | £35 | £251 |
| Underpin A Building near Wrexham Maelor | £34 | £261 |
| Underpin A Building near Rhyl | £28 | £209 |
| Underpin A Building near Prestatyn | £29 | £213 |
| Underpin A Building near Heswall | £30 | £213 |
| Underpin A Building near Chester | £32 | £220 |
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 - £17,396

Two storey extension - £87,844

Build a timber frame extension - £25,896

Build a swimming pool - £80,896

Single storey extension - £52,920

Side return extension - £40,330

Install an RSJ - £2,096

Outbuilding - £9,896

Build a Mansard loft conversion - £51,896

Loft conversion - £32,775

Build a kitchen extension - £41,896

Hip to gable loft conversion - £41,896

Granny annexe - £86,896

Garden office - £9,896

Convert a Garage - £15,896

Garage - £18,396

Build a flat roof extension - £21,896

Build a dormer loft conversion - £41,896

Concrete foundations - £6,146

Convert a bungalow loft - £28,896

Convert a basement - £36,330