From £17,780
Member since August 2026
Relax... you have found a reliable extension builder in Watlington. ABC Associates STRUCTURES 4 U is a friendly and reliable company based in Watli...
From £17,836
Ohanaa Ltd is a trusted extension builder serving customers in Watlington and the surrounding area. Contact us to today to get a competitive quote ...
From £17,612
JASON SHARP SHARP BUILDERS is a trusted extension builder serving customers in Watlington and the surrounding area. Contact us to today to get a co...
From £17,700
The business can carry out all aspects of building work:- single or double storey extensions- kitchen and bathroom installations- p...
From £17,692
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,484
Lambert Home Builds is a trusted extension builder serving customers in Watlington and the surrounding area. Contact us to today to get a competiti...
From £17,716
Experienced extension builder ready to quote for your work. DRC Construction is the best extension builder in Watlington. No obligation free quotes...
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 £17,412
Trusted and professional extension builder in Watlington. Experienced in all extension buildering work and keeping within budget and on quote. TENN...
From £17,492
EIC Builders Ltd are here to help customers who need an Extension Builder in Watlington. We offer a competitive rate to complete all your extension...

Underpinning ranges from £17,412 (TENNORCREST CONSTRUCTION based in SL6) to £17,836 (Ohanaa Ltd based in SL2), 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 Watlington by posting a job with HaMuch and we will send it to extension builders in Watlington.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near South Oxfordshire | £36 | £253 |
| Underpin A Building near Wycombe | £39 | £271 |
| Underpin A Building near High Wycombe | £39 | £272 |
| Underpin A Building near Didcot | £36 | £266 |
| Underpin A Building near Caversham | £38 | £265 |
| Underpin A Building near Hazlemere | £40 | £272 |
| Underpin A Building near Abingdon-on-Thames | £35 | £258 |
| Underpin A Building near Oxford | £37 | £261 |
| Underpin A Building near Reading | £42 | £266 |
| Underpin A Building near Aylesbury | £42 | £270 |
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 - £17,644

Two storey extension - £88,216

Build a timber frame extension - £26,144

Build a swimming pool - £81,144

Single storey extension - £57,880

Side return extension - £43,120

Install an RSJ - £2,344

Outbuilding - £10,144

Build a Mansard loft conversion - £52,144

Loft conversion - £35,100

Build a kitchen extension - £42,144

Hip to gable loft conversion - £42,144

Granny annexe - £87,144

Garden office - £10,144

Convert a Garage - £16,144

Garage - £18,644

Build a flat roof extension - £22,144

Build a dormer loft conversion - £42,144

Concrete foundations - £6,394

Convert a bungalow loft - £29,144

Convert a basement - £39,120