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Select your affordable Chipping Norton extension builder
From £17,420
Tom Grenshaw
Relax... you have found a reliable extension builder in Chipping Norton. TG Projects Ltd is a friendly and reliable company based in Chipping Norto...
From £17,364
Trusted and professional extension builder in Chipping Norton. Experienced in all extension buildering work and keeping within budget and on quote....
From £17,492
DH Building Services (Oxford) Ltd are a family-owned building firm based in Witney with over 30 years of experience providing professional, trustwo...

Underpinning ranges from £17,364 (MARCUS STOBART CONSTRUCTION based in OX7) to £17,492 (DH Building Services (Oxford) Ltd based in OX29), 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 Chipping Norton by posting a job with HaMuch and we will send it to extension builders in Chipping Norton.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Witney | £32 | £244 |
| Underpin A Building near Banbury | £33 | £239 |
| Underpin A Building near Cherwell | £35 | £249 |
| Underpin A Building near Oxford | £38 | £270 |
| Underpin A Building near Bicester | £35 | £249 |
| Underpin A Building near Vale of White Horse | £36 | £271 |
| Underpin A Building near Abingdon-on-Thames | £35 | £258 |
| Underpin A Building near Stratford-upon-Avon | £27 | £215 |
| Underpin A Building near Stratford-on-Avon | £27 | £215 |
| Underpin A Building near Evesham | £35 | £264 |
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 - £17,425

Two storey extension - £87,888

Build a timber frame extension - £25,925

Build a swimming pool - £80,925

Single storey extension - £53,507

Side return extension - £40,660

Install an RSJ - £2,125

Outbuilding - £9,925

Build a Mansard loft conversion - £51,925

Loft conversion - £33,050

Build a kitchen extension - £41,925

Hip to gable loft conversion - £41,925

Granny annexe - £86,925

Garden office - £9,925

Convert a Garage - £15,925

Garage - £18,425

Build a flat roof extension - £21,925

Build a dormer loft conversion - £41,925

Concrete foundations - £6,175

Convert a bungalow loft - £28,925

Convert a basement - £36,660