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Carterton, OX18
Trusted and professional extension builder in Carterton. Experienced in all extension buildering work and keeping within budget and on quote. Millr...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,420
Tom Grenshaw
Relax... you have found a reliable extension builder in Carterton. TG Projects Ltd is a friendly and reliable company based in Carterton who consid...
From £17,532
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 £17,532
Experienced extension builder ready to quote for your work. MILLHOUSE CONSTRUCTION LIMITED is the best extension builder in Carterton. No obligatio...
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 £17,212 (Reece Berry Building Contractor based in OX28) to £17,924 (Millrick Construction based in OX18), 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 Carterton by posting a job with HaMuch and we will send it to extension builders in Carterton.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Witney | £32 | £244 |
| Underpin A Building near Vale of White Horse | £36 | £271 |
| Underpin A Building near Stratton St Margaret | £32 | £238 |
| Underpin A Building near Oxford | £38 | £270 |
| Underpin A Building near Abingdon-on-Thames | £35 | £258 |
| Underpin A Building near Thamesdown | £31 | £239 |
| Underpin A Building near Swindon | £31 | £238 |
| Underpin A Building near Didcot | £36 | £266 |
| Underpin A Building near Cherwell | £35 | £249 |
| Underpin A Building near Bicester | £35 | £249 |
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 - £17,519

Two storey extension - £88,028

Build a timber frame extension - £26,019

Build a swimming pool - £81,019

Single storey extension - £55,373

Side return extension - £41,710

Install an RSJ - £2,219

Outbuilding - £10,019

Build a Mansard loft conversion - £52,019

Loft conversion - £33,925

Build a kitchen extension - £42,019

Hip to gable loft conversion - £42,019

Granny annexe - £87,019

Garden office - £10,019

Convert a Garage - £16,019

Garage - £18,519

Build a flat roof extension - £22,019

Build a dormer loft conversion - £42,019

Concrete foundations - £6,269

Convert a bungalow loft - £29,019

Convert a basement - £37,710