From £17,548
Experienced extension builder ready to quote for your work. RJM Brickwork is the best extension builder in Seamer. No obligation free quotes and ma...
From £17,228
NORCON CONSTRUCTION LTD is an established and experienced local extension builder in Seamer. Please contact us for a free, no obligation quote and ...
From £17,476
Relax... you have found a reliable extension builder in Seamer. Roof Force Roofing Specialists Limited is a friendly and reliable company based in ...
From £17,556
Trusted and professional extension builder in Seamer. Experienced in all extension buildering work and keeping within budget and on quote. Room at ...
From £17,364
Need to find an Extension Builder near you for all your extension buildering work?
MARK STRINGER BUILDING LIMITED provides a local, trusted...
From £17,468
Design and build new houses, extensions and refurbishments to the highest quality and professionalism.
From £17,156
Need to find an Extension Builder near you for all your extension buildering work?
A DUKES BUILDERS LIMITED provides a local, trusted exten...
From £17,452
Manor Farm Contractors is a trusted extension builder serving customers in Seamer and the surrounding area. Contact us to today to get a competitiv...

Underpinning ranges from £17,156 (A DUKES BUILDERS LIMITED based in YO17) to £17,556 (Room at the Top Loft Conversions based in YO16), 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 Seamer by posting a job with HaMuch and we will send it to extension builders in Seamer.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Scarborough | £29 | £234 |
| Underpin A Building near Bridlington | £32 | £252 |
| Underpin A Building near Beverley | £29 | £223 |
| Underpin A Building near East Riding | £29 | £223 |
| Underpin A Building near Redcar & Cleveland | £42 | £274 |
| Underpin A Building near York | £30 | £229 |
| Underpin A Building near Redcar | £41 | £264 |
| Underpin A Building near Eston | £42 | £254 |
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 - £17,406

Two storey extension - £87,859

Build a timber frame extension - £25,906

Build a swimming pool - £80,906

Single storey extension - £53,120

Side return extension - £40,443

Install an RSJ - £2,106

Outbuilding - £9,906

Build a Mansard loft conversion - £51,906

Loft conversion - £32,869

Build a kitchen extension - £41,906

Hip to gable loft conversion - £41,906

Granny annexe - £86,906

Garden office - £9,906

Convert a Garage - £15,906

Garage - £18,406

Build a flat roof extension - £21,906

Build a dormer loft conversion - £41,906

Concrete foundations - £6,156

Convert a bungalow loft - £28,906

Convert a basement - £36,443