Lovehome Construction is an established and experienced local extension builder in CM13. Please contact us for a free, no obligation quote and comp...
CLYDESDALE CONSTRUCTION LTD is an established extension buildering business in CM13. We come highly recommended and provide competitive quotes for ...
Kay Shearing
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
Billericay Loft Conversions is a trusted extension builder serving customers in CM13 and the surrounding area. Contact us to today to get a competi...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £18,044
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,276
Rimantas Seskus
Rimantas is an established extension buildering business in CM13. We come highly recommended and provide competitive quotes for your work.
From £17,404
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
From £17,412
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,772
Our building services company Harris Murray Carpentry & Building Ltd has been helping customers in Brentwood, Billericay, and Essex by providing pr...

Underpinning ranges from £17,276 (Rimantas based in CM12) to £18,044 (Clive Williams based in CM13), 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 CM13 by posting a job with HaMuch and we will send it to extension builders in CM13.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Brentwood | £39 | £255 |
| Underpin A Building near Billericay | £38 | £248 |
| Underpin A Building near Basildon | £39 | £251 |
| Underpin A Building near Romford | £45 | £274 |
| Underpin A Building near Stanford-le-Hope | £40 | £254 |
| Underpin A Building near South Ockendon | £58 | £276 |
| Underpin A Building near Thurrock | £41 | £260 |
| Underpin A Building near Wickford | £39 | £255 |
| Underpin A Building near Chafford Hundred | £41 | £261 |
| Underpin A Building near Grays | £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 - £17,618

Two storey extension - £88,178

Build a timber frame extension - £26,118

Build a swimming pool - £81,118

Single storey extension - £57,368

Side return extension - £42,832

Install an RSJ - £2,318

Outbuilding - £10,118

Build a Mansard loft conversion - £52,118

Loft conversion - £34,860

Build a kitchen extension - £42,118

Hip to gable loft conversion - £42,118

Granny annexe - £87,118

Garden office - £10,118

Convert a Garage - £16,118

Garage - £18,618

Build a flat roof extension - £22,118

Build a dormer loft conversion - £42,118

Concrete foundations - £6,368

Convert a bungalow loft - £29,118

Convert a basement - £38,832