From £17,516
SMH Property Services Ltd are here to help customers who need an Extension Builder in SS4. We offer a competitive rate to complete all your extensi...
From £17,228
Relax... you have found a reliable extension builder in SS4. Act Builders is a friendly and reliable company based in SS4 who consider no job as to...
From £17,508
Over 35 years experience
We are Gas Safe registered
We are Verified
We pride ourselves on great custom...
From £17,652
Relax... you have found a reliable extension builder in SS4. CLE BUILDING SERVICES LIMITED is a friendly and reliable company based in SS4 who cons...
From £17,372
EcoBuilders.Green Ltd is an established and experienced local extension builder in SS4. Please contact us for a free, no obligation quote and compe...
From £17,452
Need an Extension Builder in SS4? CONCORD BUILDERS LIMITED has been helping local clients (20 mile radius) with their extension buildering jobs for...
From £18,332
I constructed the luxury spa at Orsett hall hotel including the swimming pool and jacuzzi in the basement. I have constructed over 100 new build ho...
From £17,460
Experienced extension builder ready to quote for your work. J R CONSTRUCTION is the best extension builder in SS4. No obligation free quotes and ma...
From £17,588
Need an Extension Builder in SS4? DM Construction Builders Ltd has been helping local clients (20 mile radius) with their extension buildering jobs...

Underpinning ranges from £16,788 (SX Building Services Ltd based in SS4) to £18,332 (Solution building contractors LTD based in SS4), 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 SS4 by posting a job with HaMuch and we will send it to extension builders in SS4.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Southend-on-Sea | £38 | £248 |
| Underpin A Building near Rayleigh | £39 | £253 |
| Underpin A Building near Thundersley | £38 | £251 |
| Underpin A Building near Canvey Island | £39 | £256 |
| Underpin A Building near Wickford | £39 | £255 |
| Underpin A Building near Basildon | £39 | £251 |
| Underpin A Building near Maldon | £36 | £244 |
| Underpin A Building near Billericay | £38 | £248 |
| Underpin A Building near Stanford-le-Hope | £40 | £254 |
| Underpin A Building near Chelmsford | £38 | £258 |
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 - £17,490

Two storey extension - £87,984

Build a timber frame extension - £25,990

Build a swimming pool - £80,990

Single storey extension - £54,792

Side return extension - £41,383

Install an RSJ - £2,190

Outbuilding - £9,990

Build a Mansard loft conversion - £51,990

Loft conversion - £33,653

Build a kitchen extension - £41,990

Hip to gable loft conversion - £41,990

Granny annexe - £86,990

Garden office - £9,990

Convert a Garage - £15,990

Garage - £18,490

Build a flat roof extension - £21,990

Build a dormer loft conversion - £41,990

Concrete foundations - £6,240

Convert a bungalow loft - £28,990

Convert a basement - £37,383