Unvented Hot Water Cylinder Installation in St Helens, St. Helens

Most older properties around St. Helens still have a 'vented' system. You’ll know the one—it involves a large cold water tank gathering dust in the loft and a cylinder in the airing cupboard. These rely purely on gravity to push water to your taps, which is why the pressure is often so poor on the upper floors. It is a bit like trying to fill a bucket with a leaky garden hose.An unvented cylinder, like the popular Megaflo range, changes everything. Because it is connected directly to your cold water mains, the hot water is delivered at the same high pressure as your cold water. This provides what we call 'balanced pressure' throughout the house. Imagine being able to run two showers at once without either person shouting about the temperature jumping! It’s the perfect solution for busy families and larger homes in the North West.

One of the perks our St Helens customers love most about unvented cylinders is the extra space they get back. By getting rid of that bulky cold water tank in the loft, you suddenly have a much clearer space—ideal if you are thinking about a loft conversion or just want more room for storage. Plus, because there is no open tank, there is no risk of the water getting contaminated or the pipes freezing during a cold Merseyside winter.These modern cylinders are also incredibly well-insulated. Unlike those old copper tanks wrapped in a flimsy red jacket, a new unvented cylinder can keep water hot for days. This means your boiler doesn't have to work nearly as hard, which is a big win for your energy bills. We can integrate these systems seamlessly with your existing boiler installation or even as part of a wider central heating upgrade.

Installing an unvented cylinder is a serious job that requires specialist skills. Because these systems hold water under high pressure, they must be fitted with specific safety features like an expansion vessel and a tundish (a small device that lets you see if the pressure relief valve is active). In the UK, it is actually a legal requirement that the person installing your cylinder holds a G3 Building Regulations qualification.When you choose Redorr Heating & Cooling Services, you are in safe hands. Our engineers are fully G3 qualified and Gas Safe registered (967977). We don’t just 'fit and forget'—we ensure every installation is fully compliant with Part G of the building regs, meticulously tested, and commissioned to work perfectly. We even hold £10 million in public liability insurance, so you can rest easy while we work in your St Helens home.

Are you planning a bathroom refurbishment or adding an ensuite? If so, your current hot water system might not be up to the task. A traditional boiler and tank setup often struggles to keep up with the demands of a modern household with multiple showers. An unvented cylinder is the 'gold standard' for high-demand homes, ensuring everyone gets a hot, powerful shower regardless of who else is using the water.We have been providing heating and cooling services across St Helens and the wider North West for years, and we know exactly how to design a system that fits your lifestyle. From choosing the right size cylinder to decommissioning your old tanks and tidying up the pipework, we handle the whole process with minimal fuss and zero mess.