Unvented Cylinders
Unvented cylinders, fitted and serviced safely.
Unvented cylinders give you mains-pressure hot water, but they need a qualified engineer. We install, replace, service and repair them.
G3 qualified
What's included
- Installation
- Replacement
- Annual servicing
- Repairs
Common questions
Does an unvented cylinder need servicing?+
Yes — manufacturers recommend annual servicing to check safety valves and expansion, and it's often required to keep the warranty valid.
What does G3 qualified mean?+
G3 is the building regulation covering unvented hot water systems. Only qualified engineers should install or work on them.
My hot water is dripping from a pipe outside — is that serious?+
It can mean a safety valve is discharging. Call us so we can check it.
Do I get paperwork?+
Yes — paperwork plus a full detailed report with photos of the job, sent the same day.
Need a plumber who does it properly?
Tell us what's going on. We'll agree a fixed price before any work starts — and we offer 24/7 call-outs for emergencies.