Unvented Hot Water Systems in Hereford

An unvented hot water system is a modern, sealed system that connects directly to your mains water supply. Unlike traditional vented systems, it doesn’t require a cold water tank in the loft. This allows the system to provide high pressure hot water throughout your home, giving you stronger showers, quicker fills on baths, and more responsive taps. It’s a clean, space-saving, and efficient solution used in many modern homes today.

Unvented systems are ideal for most modern homes and are especially beneficial where mains water pressure is strong and consistent. They work particularly well in homes with multiple bathrooms or where loft space is limited. If you're unsure whether your property in Hereford is suitable, our team can carry out a pressure and flow test to advise you on the best solution.

Yes, you can. Many homeowners choose to upgrade to an unvented system to take advantage of better water pressure and free up loft space. During the upgrade, we remove the cold water storage tank, reconfigure your pipework where necessary, and install a new unvented cylinder. The process is straightforward, and we’ll guide you through each step to ensure your home remains safe and compliant with building regulations.

Absolutely. Unvented hot water systems are designed with multiple safety mechanisms to prevent overpressure or overheating. These include temperature and pressure relief valves, expansion vessels, and thermostats. All installations must comply with G3 building regulations, and our engineers are qualified and certified to ensure your system is installed and maintained safely.

We recommend servicing your unvented hot water system once a year. During a service, we’ll check all safety components, pressure levels, and ensure the expansion vessel is working correctly. Regular servicing not only ensures safety but also helps maintain system performance and prolongs the lifespan of your cylinder.

Loss of pressure or performance issues can happen for several reasons — such as valve failure, a faulty thermostat, or issues with the expansion vessel. If your system is underperforming, it’s important to call a qualified engineer. Our team can quickly diagnose the issue, carry out any repairs, and get your hot water back up and running as soon as possible.

Most installations are completed within 1–2 days. If you're upgrading from a traditional vented system, additional work may be required to remove old tanks and update pipework, which could extend the timeframe slightly. We'll provide a clear schedule before starting and aim to keep disruption to a minimum.

The cost depends on the size of the cylinder, the complexity of the installation, and whether you're upgrading from an older system. After a free home survey, we’ll provide you with a fixed-price quote — with no hidden extras. We also offer advice on ongoing maintenance to help you get the most from your system long-term.