From £17,844
Farnborough, GU14
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,716
Farnborough, GU14
Experienced extension builder ready to quote for your work. INSEEN CONSTRUCTION LIMITED is the best extension builder in Farnborough. No obligation...
From £17,708
MLC Building Services are here to help customers who need an Extension Builder in Farnborough. We offer a competitive rate to complete all your ext...
From £17,500
Farnborough, GU14
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,908
Assuring every job undertaken to the highest standard
Member of Which trusted traders
From £17,692
Relax... you have found a reliable extension builder in Farnborough. OAKLEA BUILDERS LTD is a friendly and reliable company based in Farnborough wh...
From £17,428
Holt Builders Ltd are here to help customers who need an Extension Builder in Farnborough. We offer a competitive rate to complete all your extensi...
From £17,812
Relax... you have found a reliable extension builder in Farnborough. PRESTIGE HOMES BUILD SERVICES is a friendly and reliable company based in Farn...
From £17,124
Dynamelec Ltd is an established and experienced local extension builder in Farnborough. Please contact us for a free, no obligation quote and compe...

Underpinning ranges from £17,124 (Dynamelec Ltd based in GU51) to £17,908 (GR8 CONSTRUCTION AND CARPENTRY based in GU16), 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 Farnborough by posting a job with HaMuch and we will send it to extension builders in Farnborough.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Farnborough | £41 | £273 |
| Underpin A Building near Ash Vale | £41 | £277 |
| Underpin A Building near Aldershot | £41 | £275 |
| Underpin A Building near Camberley | £41 | £283 |
| Underpin A Building near Fleet | £41 | £270 |
| Underpin A Building near Sandhurst | £41 | £283 |
| Underpin A Building near Farnham | £41 | £276 |
| Underpin A Building near Bracknell | £41 | £286 |
| Underpin A Building near Bracknell Forest | £41 | £287 |
| Underpin A Building near Wokingham | £41 | £280 |
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 - £17,630

Two storey extension - £88,196

Build a timber frame extension - £26,130

Build a swimming pool - £81,130

Single storey extension - £57,608

Side return extension - £42,967

Install an RSJ - £2,330

Outbuilding - £10,130

Build a Mansard loft conversion - £52,130

Loft conversion - £34,973

Build a kitchen extension - £42,130

Hip to gable loft conversion - £42,130

Granny annexe - £87,130

Garden office - £10,130

Convert a Garage - £16,130

Garage - £18,630

Build a flat roof extension - £22,130

Build a dormer loft conversion - £42,130

Concrete foundations - £6,380

Convert a bungalow loft - £29,130

Convert a basement - £38,967