— Our Services
Unvented Cylinder
If you're after stronger water pressure and a more reliable hot water supply, an unvented cylinder could be exactly what your home needs. Based in Longlevens, Gloucester, we install unvented hot water cylinders throughout the surrounding area including Cheltenham, Tewksbury and Cirencester.
— About This Service
Our unvented cylinder installation service
At G.Capper Plumbing and Heating, we supply and install unvented hot water cylinders for homes that want better pressure and flow without the need for a loft tank. Unlike traditional vented systems, unvented cylinders are fed directly from the mains, meaning every tap and shower in your home benefits from strong, consistent pressure. Our engineers are fully qualified and Gas Safe registered, and every installation is carried out to the highest safety standards, with all the necessary valves and controls fitted correctly to keep your system safe and compliant.
— Our Process
How It Works
Home survey and assessment
We visit your property to check your mains pressure, existing pipework and hot water demand to confirm an unvented cylinder is the right fit.
Cylinder selection
We help you choose the correct size and type of cylinder for your household, balancing hot water demand with the space available.
Professional installation
Our Gas Safe registered engineers fit your new cylinder along with all required safety valves, leaving your system fully tested and ready to use.
— Benefits
Why Choose us for Unvented Cylinders?
Stronger water pressure
Mains-fed cylinders deliver consistently strong pressure to every outlet, even with multiple taps or showers running at once.
No loft tank required
Unvented systems don't rely on a cold water storage tank, freeing up valuable loft space and simplifying your plumbing.
Quicker hot water recovery
A well-sized unvented cylinder reheats faster than a traditional tank, so your household is rarely left waiting for hot water.
With years of experience and Checkatrade membership, G.Capper Plumbing and Heating is the trusted choice for unvented cylinder installations in Gloucester. We're accredited with leading manufacturers including Ideal, Vaillant and Grant, and we'll always recommend the cylinder that genuinely suits your home rather than a one-size-fits-all solution. Whether you're replacing an old tank or upgrading your system for the first time, you can rely on us for a safe, well-fitted installation.
— FAQ
Frequently Asked Questions
An unvented cylinder is a hot water storage cylinder fed directly from the mains water supply, rather than from a cold water tank in the loft. This means hot water comes out at mains pressure, giving stronger flow at taps and showers.
Contact us today for a free quote on an unvented cylinder
If you're interested in upgrading to an unvented hot water cylinder, get in touch with G.Capper Plumbing and Heating for a free, no-obligation quote.