From £17,380
Experienced extension builder ready to quote for your work. CIA Construction Limited is the best extension builder in ME3. No obligation free quote...
From £17,564
Hyde Building Ltd are here to help customers who need an Extension Builder in ME3. We offer a competitive rate to complete all your extension build...
From £17,860
Need an Extension Builder in ME3? Ellis & James Builders Limited has been helping local clients (20 mile radius) with their extension buildering jo...
From £17,508
Over 35 years experience
We are Gas Safe registered
We are Verified
We pride ourselves on great custom...
From £18,116
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in ME3 and the surrounding area. Contact us to today to get a comp...
From £17,740
M&J Brickwork Ltd are a Chelmsford based Bricklaying & General Building company that operate throughout the Essex and South London...
From £18,732
Optimus Build Solutions delivers exceptional construction services in London and surronding areas. Specializing in bathroom and kitchen refurbishme...
From £17,716
Experienced extension builder ready to quote for your work. Liviu Toma is the best extension builder in ME3. No obligation free quotes and many hap...
From £17,756
Lover Build is an established and experienced local extension builder in ME3. Please contact us for a free, no obligation quote and competitive rat...
From £17,676
Witton & Pearce Builders in Essex is a trusted extension builder serving customers in ME3 and the surrounding area. Contact us to today to get a co...

Underpinning ranges from £17,380 (CIA Construction Limited based in RM18) to £18,732 (Optimus Build Solutions based in Rm1), 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 ME3 by posting a job with HaMuch and we will send it to extension builders in ME3.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Chatham | £39 | £254 |
| Underpin A Building near Gillingham | £39 | £253 |
| Underpin A Building near Rochester | £39 | £254 |
| Underpin A Building near Canvey Island | £39 | £256 |
| Underpin A Building near Gravesend | £40 | £260 |
| Underpin A Building near Stanford-le-Hope | £40 | £254 |
| Underpin A Building near Northfleet | £41 | £261 |
| Underpin A Building near Thurrock | £41 | £260 |
| Underpin A Building near Thundersley | £38 | £251 |
| Underpin A Building near Chafford Hundred | £41 | £261 |
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 - £17,805

Two storey extension - £88,457

Build a timber frame extension - £26,305

Build a swimming pool - £81,305

Single storey extension - £61,096

Side return extension - £44,929

Install an RSJ - £2,505

Outbuilding - £10,305

Build a Mansard loft conversion - £52,305

Loft conversion - £36,608

Build a kitchen extension - £42,305

Hip to gable loft conversion - £42,305

Granny annexe - £87,305

Garden office - £10,305

Convert a Garage - £16,305

Garage - £18,805

Build a flat roof extension - £22,305

Build a dormer loft conversion - £42,305

Concrete foundations - £6,555

Convert a bungalow loft - £29,305

Convert a basement - £40,929