From £17,484
Lambert Home Builds is a trusted extension builder serving customers in Frilford and the surrounding area. Contact us to today to get a competitive...
From £17,692
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,700
The business can carry out all aspects of building work:- single or double storey extensions- kitchen and bathroom installations- p...
From £17,716
Experienced extension builder ready to quote for your work. DRC Construction is the best extension builder in Frilford. No obligation free quotes a...
From £17,716
Need to find an Extension Builder near you for all your extension buildering work?
BA Knott Oxford Ltd provides a local, trusted extension ...
From £17,628
Relax... you have found a reliable extension builder in Frilford. CHF CONSTRUCTION is a friendly and reliable company based in Frilford who conside...
From £17,692
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £16,980
MR HOWELL are here to help customers who need an Extension Builder in Frilford. We offer a competitive rate to complete all your extension builderi...
From £17,740
Approved extension builder in Frilford, covering 20 miles.
Whatever extension buildering work you need, including emergency repairs, hire a ...
From £17,572
We have a skilled and dedicated team of professional tradesmen to carry out all your requirements. Whether you are looking to build, extend or upgr...

Underpinning ranges from £16,980 (MR HOWELL based in SN3) to £17,740 (APH Construction Limited based in OX2), 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 Frilford by posting a job with HaMuch and we will send it to extension builders in Frilford.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Abingdon-on-Thames | £35 | £258 |
| Underpin A Building near Oxford | £37 | £261 |
| Underpin A Building near Vale of White Horse | £36 | £271 |
| Underpin A Building near Didcot | £36 | £266 |
| Underpin A Building near Witney | £32 | £244 |
| Underpin A Building near South Oxfordshire | £36 | £253 |
| Underpin A Building near Cherwell | £35 | £249 |
| Underpin A Building near Bicester | £35 | £249 |
| Underpin A Building near Stratton St Margaret | £37 | £238 |
| Underpin A Building near Newbury | £37 | £262 |
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 - £17,592

Two storey extension - £88,138

Build a timber frame extension - £26,092

Build a swimming pool - £81,092

Single storey extension - £56,840

Side return extension - £42,535

Install an RSJ - £2,292

Outbuilding - £10,092

Build a Mansard loft conversion - £52,092

Loft conversion - £34,613

Build a kitchen extension - £42,092

Hip to gable loft conversion - £42,092

Granny annexe - £87,092

Garden office - £10,092

Convert a Garage - £16,092

Garage - £18,592

Build a flat roof extension - £22,092

Build a dormer loft conversion - £42,092

Concrete foundations - £6,342

Convert a bungalow loft - £29,092

Convert a basement - £38,535