Unvented Hot Water Cylinder Installation in Liverpool, Liverpool

One of the biggest headaches with traditional heating systems is the sheer amount of space they hog. You’ve got the cylinder in the airing cupboard and then those massive, heavy cold-water storage tanks sitting in the loft. If you’re planning a loft conversion or just want to clear out some clutter, an unvented system is a total game-changer.

Because these cylinders are mains-fed, those bulky loft tanks become completely redundant. We can remove them, pipe everything directly, and suddenly you’ve got a much cleaner, safer, and more spacious loft area. Plus, without those tanks, you don’t have to worry about pipes freezing in the roof during a harsh Liverpool winter or birds getting into your header tank (yes, it happens more than you’d think!).

Installing an unvented hot water cylinder isn’t a job for a DIY enthusiast or a general handyman. Because these systems are under high pressure, they are governed by strict G3 Building Regulations. At Redorr Heating & Cooling Services, our engineers are fully G3 qualified, which is a legal requirement for this type of work.

We don’t just 'fit and forget'. Every installation we do includes the necessary safety features like the expansion vessel, pressure relief valves, and the all-important tundish (that little plastic 'window' that lets you see if the system is discharging). We’re also Gas Safe registered (967977) and carry £10 million in public liability insurance. When you choose us, you aren't just getting a new cylinder; you’re getting the peace of mind that your home and family are safe.

If you’ve ever looked into boosting your water pressure, you might have been told to install a noisy power shower pump. While they work, they can be loud enough to wake the whole house in the morning. An unvented cylinder gives you that same 'power shower' experience naturally, using the existing pressure from the Liverpool mains.

It’s the perfect solution for busy families in areas like Allerton, Crosby, or Woolton who are tired of fighting over who gets the shower first. Whether you have a large property with four bathrooms or a smaller terrace looking for more efficiency, we can design a system that works perfectly for your needs. We can even integrate these systems with air source heat pump installation or ground source heat pump installation for an even greener home.

Already have an unvented cylinder but noticed the pressure has dropped or there’s water dripping from a pipe? Don't ignore it. These systems require an annual service to check the safety valves and recharge the internal air gap or expansion vessel. Neglecting this can lead to expensive emergency plumbing services down the line.

Our team provides comprehensive boiler repairs and servicing and dedicated cylinder maintenance throughout Liverpool and the surrounding 25-mile radius. We’ll check the entire system, ensure it’s running at peak energy efficiency, and make sure those safety discharge pipes are clear. We pride ourselves on transparent, honest advice—if it’s a simple fix, we’ll tell you. If it’s time for a replacement, we’ll provide a clear, fixed quote with no hidden extras.