From £17,236
Relax... you have found a reliable extension builder in L18. R Sargeant is a friendly and reliable company based in L18 who consider no job as too ...
From £17,476
Nathan Thomas Plumbing is an established extension buildering business in L18. We come highly recommended and provide competitive quotes for your w...
From £17,316
DK Building is an established extension buildering business in L18. We come highly recommended and provide competitive quotes for your work.
From £17,588
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,372
Experienced extension builder ready to quote for your work. Elevate Finishing is the best extension builder in L18. No obligation free quotes and m...
From £17,300
Experienced extension builder ready to quote for your work. Oxygen Property Partners is the best extension builder in L18. No obligation free quot...
From £17,516
Art Henry's are here to help customers who need an Extension Builder in L18. We offer a competitive rate to complete all your extension buildering ...
From £17,804
Experienced extension builder ready to quote for your work. Spectrum is the best extension builder in L18. No obligation free quotes and many happy...
From £16,604
Liverpool Direct Builders is a trusted extension builder serving customers in L18 and the surrounding area. Contact us to today to get a competitiv...
From £17,252
Need an Extension Builder in L18? ARGYLE BUILDING AND MAINTENANCE has been helping local clients (20 mile radius) with their extension buildering j...

Underpinning ranges from £16,604 (Liverpool Direct Builders based in L14) to £17,804 (Spectrum based in L14), 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 L18 by posting a job with HaMuch and we will send it to extension builders in L18.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Liverpool | £31 | £222 |
| Underpin A Building near Huyton with Roby | £31 | £225 |
| Underpin A Building near Knowsley | £31 | £222 |
| Underpin A Building near Bebington | £31 | £222 |
| Underpin A Building near Birkenhead | £31 | £219 |
| Underpin A Building near Prescot | £31 | £223 |
| Underpin A Building near Wallasey | £32 | £224 |
| Underpin A Building near Bootle | £32 | £223 |
| Underpin A Building near Kirkby | £31 | £223 |
| Underpin A Building near Widnes | £31 | £220 |
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 - £17,346

Two storey extension - £87,770

Build a timber frame extension - £25,846

Build a swimming pool - £80,846

Single storey extension - £51,928

Side return extension - £39,772

Install an RSJ - £2,046

Outbuilding - £9,846

Build a Mansard loft conversion - £51,846

Loft conversion - £32,310

Build a kitchen extension - £41,846

Hip to gable loft conversion - £41,846

Granny annexe - £86,846

Garden office - £9,846

Convert a Garage - £15,846

Garage - £18,346

Build a flat roof extension - £21,846

Build a dormer loft conversion - £41,846

Concrete foundations - £6,096

Convert a bungalow loft - £28,846

Convert a basement - £35,772