From £17,332
J D Holland Building Services is a trusted extension builder serving customers in FY6 and the surrounding area. Contact us to today to get a compet...
From £16,996
COASTAL CONSTRUCTION LTD is an established and experienced local extension builder in FY6. Please contact us for a free, no obligation quote and co...
From £17,044
Need to find an Extension Builder near you for all your extension buildering work?
Poulton Building & Joinery Services provides a local, tr...
From £17,148
JSM BUILDING SOLUTIONS LIMITED is a trusted extension builder serving customers in FY6 and the surrounding area. Contact us to today to get a compe...
From £17,148
Interbuild is an established extension buildering business in FY6. We come highly recommended and provide competitive quotes for your work.
From £16,996
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,324
We do it all from plan to completion
25 yrs and no complaints ..
modern and contemporary
kitchen bathrooms
From £17,132
TECH BUILDING limited is an established extension buildering business in FY6. We come highly recommended and provide competitive quotes for your wo...
From £17,284
Relax... you have found a reliable extension builder in FY6. Rps property services Ltd is a friendly and reliable company based in FY6 who consider...

Underpinning ranges from £16,996 (COASTAL CONSTRUCTION LTD based in FY5) to £17,332 (J D Holland Building Services based in FY5), 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 FY6 by posting a job with HaMuch and we will send it to extension builders in FY6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Fleetwood | £28 | £206 |
| Underpin A Building near Blackpool | £29 | £209 |
| Underpin A Building near Lytham St Annes | £28 | £206 |
| Underpin A Building near Fulwood | £31 | £217 |
| Underpin A Building near Penwortham | £30 | £218 |
| Underpin A Building near Preston | £30 | £219 |
| Underpin A Building near Lancaster | £25 | £211 |
| Underpin A Building near Morecambe | £25 | £212 |
| Underpin A Building near Bamber Bridge | £30 | £217 |
| Underpin A Building near Southport | £27 | £198 |
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 - £17,150

Two storey extension - £87,476

Build a timber frame extension - £25,650

Build a swimming pool - £80,650

Single storey extension - £48,008

Side return extension - £37,567

Install an RSJ - £1,850

Outbuilding - £9,650

Build a Mansard loft conversion - £51,650

Loft conversion - £30,473

Build a kitchen extension - £41,650

Hip to gable loft conversion - £41,650

Granny annexe - £86,650

Garden office - £9,650

Convert a Garage - £15,650

Garage - £18,150

Build a flat roof extension - £21,650

Build a dormer loft conversion - £41,650

Concrete foundations - £5,900

Convert a bungalow loft - £28,650

Convert a basement - £33,567