From £17,492
ARC Building Services is a trusted extension builder serving customers in LU1 and the surrounding area. Contact us to today to get a competitive q...
From £17,436
Plumbing, painting exterior, interior, extensions, plastering, skiming, carpeting, Flooring, you can ask us ..
From £16,956
we are very efficient in our work.and make sure our client is one 100% satisfied with our work.
From £17,540
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,620
GA Plan and Design is an established and experienced local extension builder in LU1. Please contact us for a free, no obligation quote and competit...
From £17,908
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,724
Inkerman Building & Roofing Co are here to help customers who need an Extension Builder in LU1. We offer a competitive rate to complete all your ex...
From £17,500
S Sherazi Home Improvement Service are here to help customers who need an Extension Builder in LU1. We offer a competitive rate to complete all you...
From £17,892
ACR Build is an established and experienced local extension builder in LU1. Please contact us for a free, no obligation quote and competitive rates...
From £20,452
Painting & Decorating including property maintenance Building services honest trustworthy fully qualified decorators established 35 years.We cove...

Underpinning ranges from £16,956 (Rite Builders based in LU1) to £20,452 ( A & D Maintenance Services Ltd based in LU2), 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 LU1 by posting a job with HaMuch and we will send it to extension builders in LU1.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Luton | £37 | £240 |
| Underpin A Building near Dunstable | £36 | £235 |
| Underpin A Building near Harpenden | £70 | £264 |
| Underpin A Building near Hitchin | £37 | £238 |
| Underpin A Building near Hemel Hempstead | £36 | £232 |
| Underpin A Building near Mid Bedfordshire | £34 | £225 |
| Underpin A Building near St Albans | £52 | £246 |
| Underpin A Building near Dacorum | £36 | £232 |
| Underpin A Building near Berkhamsted | £35 | £227 |
| Underpin A Building near Stevenage | £37 | £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 - £17,852

Two storey extension - £88,528

Build a timber frame extension - £26,352

Build a swimming pool - £81,352

Single storey extension - £62,040

Side return extension - £45,460

Install an RSJ - £2,552

Outbuilding - £10,352

Build a Mansard loft conversion - £52,352

Loft conversion - £37,050

Build a kitchen extension - £42,352

Hip to gable loft conversion - £42,352

Granny annexe - £87,352

Garden office - £10,352

Convert a Garage - £16,352

Garage - £18,852

Build a flat roof extension - £22,352

Build a dormer loft conversion - £42,352

Concrete foundations - £6,602

Convert a bungalow loft - £29,352

Convert a basement - £41,460