From £17,716
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,836
Relax... you have found a reliable extension builder in SS7. TGC Roofing is a friendly and reliable company based in SS7 who consider no job as too...
From £17,564
Experienced extension builder ready to quote for your work. HIGHLAND CONSTRUCTION is the best extension builder in SS7. No obligation free quotes a...
From £17,924
Need to find an Extension Builder near you for all your extension buildering work?
LB Plastering Service provides a local, trusted extensio...
From £17,724
Welcome to Viking Carpentry, founded by Luke Tivey. Viking Carpentry is a family run business based in Rayleigh Essex with over 50 years experience...
From £17,268
Hudson Garden Rooms is an established and experienced local extension builder in SS7. Please contact us for a free, no obligation quote and competi...
From £17,620
Experienced extension builder ready to quote for your work. One Sterling Carpentry & Building Services is the best extension builder in SS7. No obl...
From £17,540
Experienced extension builder ready to quote for your work. BT Property Maintenance & Roofing is the best extension builder in SS7. No obligation f...
From £18,524
Our services include.
Bathroom design and installation.
Wood flooring.
Plastering and rendering.
Painting a...
From £17,596
Maple Construction Specialises in Loft and Garage Conversions, Extensions and Orangeries. My team of tradesmen have been working together for nearl...

Underpinning ranges from £17,268 (Hudson Garden Rooms based in SS12) to £18,524 (LAS Home Improvements based in SS6), 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 SS7 by posting a job with HaMuch and we will send it to extension builders in SS7.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Thundersley | £38 | £251 |
| Underpin A Building near Rayleigh | £39 | £253 |
| Underpin A Building near Canvey Island | £39 | £256 |
| Underpin A Building near Basildon | £39 | £251 |
| Underpin A Building near Wickford | £39 | £255 |
| Underpin A Building near Southend-on-Sea | £38 | £248 |
| Underpin A Building near Stanford-le-Hope | £40 | £254 |
| Underpin A Building near Billericay | £38 | £248 |
| Underpin A Building near Thurrock | £41 | £260 |
| Underpin A Building near Brentwood | £39 | £256 |
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 - £17,731

Two storey extension - £88,347

Build a timber frame extension - £26,231

Build a swimming pool - £81,231

Single storey extension - £59,624

Side return extension - £44,101

Install an RSJ - £2,431

Outbuilding - £10,231

Build a Mansard loft conversion - £52,231

Loft conversion - £35,918

Build a kitchen extension - £42,231

Hip to gable loft conversion - £42,231

Granny annexe - £87,231

Garden office - £10,231

Convert a Garage - £16,231

Garage - £18,731

Build a flat roof extension - £22,231

Build a dormer loft conversion - £42,231

Concrete foundations - £6,481

Convert a bungalow loft - £29,231

Convert a basement - £40,101