
Local engineers.
Proper standards. No shortcuts.
Since 2020 we've helped homeowners, landlords and letting agents across Oxfordshire and the Cotswolds fix leaks, replace boilers, install heat pumps and renovate bathrooms, with fixed prices and honest workmanship.
The directors behind every job.

Oliver Varndell-Dawes
Founder & Director
Founded Pinnacle in 2020 after a decade on the tools. Gas Safe registered and MCS trained, Ollie leads the heating and renewables side of the business, from combi swaps to full ground-source installs.
Johnny Ayris
Director
Joined as co-director in 2022. Johnny runs bathroom installations and larger project work, the person our clients speak to when they want one team managing plumbing, tiling and electrics under a single fixed price.
Built in Carterton. Trusted across Oxfordshire.
Pinnacle Plumbing & Heating Direct was founded in 2020 by Oliver Varndell-Dawes, an engineer with a decade of hands-on experience and a stubborn belief that homeowners deserve better than half-explanations and moving prices. In 2022 he was joined by co-director Johnny Ayris, and together they've grown the business into a five-engineer team operating out of Carterton.
We work for homeowners with a dripping tap, landlords with a compliance deadline, letting agents managing dozens of properties, and developers on new-build sites. Whatever the job, one thing stays the same: we turn up when we say we will, we quote a fixed price before we start, and we don't leave until you're happy.
Our patch covers Witney, Carterton, Oxford, Abingdon, Bicester, Woodstock, Moreton-in-Marsh and the wider Cotswolds, a mix of Victorian terraces, listed cottages and modern estates. That variety is why our engineers are trained on everything from combi swaps to MCS-certified heat pump installs.
Make plumbing and heating something you don't have to worry about.
One team. One fixed price. One point of contact from first phone call to final sign-off, so the job gets done properly the first time, and the warranty means something when you need it.
Four things we won't compromise on.
Fixed prices, agreed upfront
Every job, from a tap repair to a full bathroom, is quoted before work begins. No day-rate creep, no hidden extras.
Gas Safe & MCS certified
Every gas engineer is individually Gas Safe registered. Our heat-pump installs are MCS certified, the requirement for BUS grant funding.
Own engineers, never subbed
Five directly employed engineers and apprentices. The person who quotes is the same team who does the work.
Warranties that mean something
7-year manufacturer warranty on standard boiler installs, extendable up to 10 years. £5m public liability on every job.
Certified where it matters, insured where it counts.
Ready to talk to a real engineer?
Free quotes, honest advice and fixed prices upfront. Call 07415 083473 or send a message and we'll come back the same working day.
