Unvented Cylinder Installation, Servicing & Repairs
Eastbourne & East Sussex
Unvented hot water cylinders provide powerful, mains-pressure hot water to multiple taps and showers at the same time. Focused Heating offers professional unvented cylinder installation, servicing, maintenance and repairs in Eastbourne and across East Sussex.
Whether you’re upgrading your hot water system, replacing an old cylinder, or need a qualified engineer to service or repair an existing unit, we deliver safe, compliant and reliable solutions.
An unvented cylinder is a sealed hot water storage system that operates directly from the mains water supply. Unlike traditional vented cylinders, unvented systems deliver:
They are ideal for modern homes, larger households, and properties with multiple bathrooms.
We design and install unvented hot water systems tailored to your property, usage needs, and water pressure.
Our installation service includes:
All unvented cylinder installations are carried out by qualified engineers with the required G3 certification, ensuring full compliance with UK Building Regulations.
Upgrading to an unvented cylinder can offer:
We carry out thorough fault diagnosis to identify the issue and repair it safely and efficiently.
Annual servicing of an unvented cylinder is essential for safety, efficiency, and legal compliance.
Our unvented cylinder servicing in Eastbourne includes:
✔ Checking pressure-reducing valves
✔ Expansion vessel inspection
✔ Testing temperature & pressure relief valves
✔ Checking immersion heaters
✔ Safety discharge inspection
✔ Performance and efficiency checks
Regular servicing helps prevent failures, protects components, and ensures safe operation.
If your unvented cylinder isn’t working correctly, we offer fast diagnosis and professional repairs.
Common Unvented Cylinder Problems We Fix
✔ No hot water
✔ Low or fluctuating pressure
✔ Leaking valves or pipework
✔ Water discharging from tundish
✔ Faulty immersion heaters
✔ Pressure relief valve activation
We aim to restore your hot water quickly and safely, using high-quality replacement parts.
We focus on long-term reliability, safety, and performance.
We carry out thorough fault diagnosis to identify the issue and repair it safely and efficiently.
Yes. Annual servicing is strongly recommended and often required for safety and warranty purposes.
Yes, when installed and maintained by a G3-qualified engineer. Safety valves and controls are essential and must be checked regularly.
In many cases, yes. We’ll assess your water pressure, pipework, and system suitability before advising.
Yes — we repair most makes and models, subject to parts availability.
REVIEWS
On completion of jobs I ask my customers to provide some feedback so I can monitor and improve my service where needed.
Feel free to take a look at some of my valued customer reviews below.
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If you need unvented cylinder installation, servicing or repairs in Eastbourne, Focused Heating is here to help.
Request a quote or ask a question.