From £17,228
iConstruction are here to help customers who need an Extension Builder in HD1. We offer a competitive rate to complete all your extension builderin...
From £17,164
Relax... you have found a reliable extension builder in HD1. Walkden Bricklaying is a friendly and reliable company based in HD1 who consider no jo...
From £17,508
Paul Brook Quality Builder is a trusted extension builder serving customers in HD1 and the surrounding area. Contact us to today to get a competiti...
From £17,316
SJL Construction is a trusted extension builder serving customers in HD1 and the surrounding area. Contact us to today to get a competitive quote f...
From £17,316
Trusted and professional extension builder in HD1. Experienced in all extension buildering work and keeping within budget and on quote. J P McDonag...
From £17,108
Relax... you have found a reliable extension builder in HD1. Conroy Brook Group is a friendly and reliable company based in HD1 who consider no job...
From £17,436
Need an Extension Builder in HD1? Paragon Oak Ltd has been helping local clients (20 mile radius) with their extension buildering jobs for many yea...
From £17,212
Irving Property is an established extension buildering business in HD1. We come highly recommended and provide competitive quotes for your work.
From £17,564
Experienced extension builder ready to quote for your work. west yorkshire plumbing and heating services ltd is the best extension builder in HD1. ...
From £17,580
OD Contractors ltd provides a range of building services to bring home improvement projects to life. With over 30 years of shared experience our bu...

Underpinning ranges from £17,108 (Conroy Brook Group based in HD9) to £17,580 (OD Contractors Ltd based in HD8), 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 HD1 by posting a job with HaMuch and we will send it to extension builders in HD1.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Huddersfield | £29 | £224 |
| Underpin A Building near Kirklees | £30 | £231 |
| Underpin A Building near Brighouse | £30 | £230 |
| Underpin A Building near Mirfield | £31 | £236 |
| Underpin A Building near Holmfirth | £30 | £232 |
| Underpin A Building near Halifax | £32 | £243 |
| Underpin A Building near Dewsbury | £33 | £245 |
| Underpin A Building near Batley | £32 | £239 |
| Underpin A Building near Ossett | £33 | £245 |
| Underpin A Building near Morley | £31 | £239 |
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 - £17,343

Two storey extension - £87,765

Build a timber frame extension - £25,843

Build a swimming pool - £80,843

Single storey extension - £51,864

Side return extension - £39,736

Install an RSJ - £2,043

Outbuilding - £9,843

Build a Mansard loft conversion - £51,843

Loft conversion - £32,280

Build a kitchen extension - £41,843

Hip to gable loft conversion - £41,843

Granny annexe - £86,843

Garden office - £9,843

Convert a Garage - £15,843

Garage - £18,343

Build a flat roof extension - £21,843

Build a dormer loft conversion - £41,843

Concrete foundations - £6,093

Convert a bungalow loft - £28,843

Convert a basement - £35,736