From £17,380
Experienced extension builder ready to quote for your work. CIA Construction Limited is the best extension builder in CM16. No obligation free quot...
From £17,860
Need an Extension Builder in CM16? Ellis & James Builders Limited has been helping local clients (20 mile radius) with their extension buildering j...
1 review
From £17,692
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
"Did callout made safe my elctrical work thanks" - reviewed 16/05/23, REECYRUSSO
From £17,524
Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...
From £17,892
Need an Extension Builder in CM16? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for many ye...
From £17,812
Local Boiler Plumbing & Heating Services is an established and experienced local extension builder in CM16. Please contact us for a free, no obliga...
From £17,420
NISUP BUILDING SERVICES Company specializes in the domestic and commercial building industry :1. Refurbishm...
From £17,932
Krystian Wojasiewicz is a trusted extension builder serving customers in CM16 and the surrounding area. Contact us to today to get a competitive qu...
From £17,932
Platinum Electrics is a Branch off Platinum Premier Projects who deal in all types of construction projects. Platinum Electrics are based in London...
From £17,644
Experienced extension builder ready to quote for your work. Khetani Builders (UK) Ltd is the best extension builder in CM16. No obligation free quo...

Underpinning ranges from £17,380 (CIA Construction Limited based in RM18) to £17,932 (Krystian Wojasiewicz based in HA9), 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 CM16 by posting a job with HaMuch and we will send it to extension builders in CM16.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Loughton | £44 | £273 |
| Underpin A Building near Epping Forest | £44 | £273 |
| Underpin A Building near Harlow | £43 | £288 |
| Underpin A Building near Hoddesdon | £46 | £296 |
| Underpin A Building near Cheshunt | £48 | £285 |
| Underpin A Building near Romford | £45 | £274 |
| Underpin A Building near Redbridge | £41 | £264 |
| Underpin A Building near Ware | £47 | £296 |
| Underpin A Building near Walthamstow | £45 | £277 |
| Underpin A Building near Brentwood | £39 | £255 |
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 - £17,709

Two storey extension - £88,313

Build a timber frame extension - £26,209

Build a swimming pool - £81,209

Single storey extension - £59,176

Side return extension - £43,849

Install an RSJ - £2,409

Outbuilding - £10,209

Build a Mansard loft conversion - £52,209

Loft conversion - £35,708

Build a kitchen extension - £42,209

Hip to gable loft conversion - £42,209

Granny annexe - £87,209

Garden office - £10,209

Convert a Garage - £16,209

Garage - £18,709

Build a flat roof extension - £22,209

Build a dormer loft conversion - £42,209

Concrete foundations - £6,459

Convert a bungalow loft - £29,209

Convert a basement - £39,849