Unvented Cylinders (G3)
High-pressure hot water systems installed & maintained by G3 qualified engineers.
Safe, compliant unvented cylinder installation & servicing
Unvented cylinders deliver powerful, mains-pressure hot water — ideal for modern homes, commercial units, and multi-bathroom properties. Our engineers are fully G3 qualified to install, service and maintain these high-performance systems safely and legally.
We provide installation and servicing across Birmingham, Solihull, Coventry, Wolverhampton, Walsall, Dudley, Sandwell and the wider West Midlands.
G3 Certified Engineers
Fully qualified to install, repair and service unvented cylinders to legal standards.
Installations & upgrades
Unvented cylinder replacements, system upgrades and new installations.
Servicing & safety valves
Annual servicing, safety valve checks, expansion vessel inspection and system testing.
Commercial & domestic
Suitable for homes, offices, salons, gyms, rental properties and commercial buildings.
Domestic unvented cylinders
Perfect for properties with multiple bathrooms or where powerful hot water is required. We install all leading brands including Megaflo, Gledhill, Telford, Worcester and more.
Commercial unvented hot water systems
We install and maintain high-capacity, commercial-grade cylinders suitable for:
- Shops, offices & commercial units
- Salons, gyms & hospitality
- Schools and public buildings
- Apartment blocks and HMOs
What’s included with installation
- Full system assessment
- Correct sizing & specification
- All G3 safety components installed
- Commissioning & documentation
- Building control notification
Annual servicing
Unvented cylinders require yearly servicing to remain safe and compliant. We check:
- Pressure relief & safety valves
- Expansion vessel charge
- T&P valve operation
- Strainers & filters
- Immersion heaters
- Discharge pipework
Our G3 certified engineers provide domestic & commercial installations across the West Midlands.