From £17,980
On time/ professional/ time served/trustworthy
From £18,412
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...
From £17,604
RAINTON CONSTRUCTION LTD is an established and experienced local extension builder in Seaton Sluice. Please contact us for a free, no obligation qu...
From £17,308
ANDREW HUNTER BUILDING SERVICES is an established and experienced local extension builder in Seaton Sluice. Please contact us for a free, no obliga...
From £16,540
Member since July 2020
I have over 40 years experience in the field of construction. Thank you and I hope I will be of service to you.
From £17,284
Trusted and professional extension builder in Seaton Sluice. Experienced in all extension buildering work and keeping within budget and on quote. D...
From £17,980
Arrowhead Construction is a trusted extension builder serving customers in Seaton Sluice and the surrounding area. Contact us to today to get a com...
From £17,492
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,436
Building Craft Ltd is an established extension buildering business in Seaton Sluice. We come highly recommended and provide competitive quotes for ...
From £17,484
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Underpinning ranges from £16,540 (OCC Construction based in NE10) to £18,412 (Radici Construction North East Ltd based in DH1), 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 Seaton Sluice by posting a job with HaMuch and we will send it to extension builders in Seaton Sluice.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Whitley Bay | £38 | £268 |
| Underpin A Building near Tynemouth | £36 | £257 |
| Underpin A Building near North Tyneside | £35 | £253 |
| Underpin A Building near Wallsend | £34 | £245 |
| Underpin A Building near South Shields | £36 | £257 |
| Underpin A Building near Cramlington | £36 | £256 |
| Underpin A Building near Blyth | £42 | £288 |
| Underpin A Building near Jarrow | £34 | £262 |
| Underpin A Building near Longbenton | £34 | £234 |
| Underpin A Building near Hebburn | £34 | £246 |
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 - £17,552

Two storey extension - £88,078

Build a timber frame extension - £26,052

Build a swimming pool - £81,052

Single storey extension - £56,040

Side return extension - £42,085

Install an RSJ - £2,252

Outbuilding - £10,052

Build a Mansard loft conversion - £52,052

Loft conversion - £34,238

Build a kitchen extension - £42,052

Hip to gable loft conversion - £42,052

Granny annexe - £87,052

Garden office - £10,052

Convert a Garage - £16,052

Garage - £18,552

Build a flat roof extension - £22,052

Build a dormer loft conversion - £42,052

Concrete foundations - £6,302

Convert a bungalow loft - £29,052

Convert a basement - £38,085