G3 Unvented Cylinder Installation in Devizes , Wiltshire

Every successful unvented cylinder installation begins with a thorough diagnostic assessment of your property. First, we test your incoming mains water supply to ensure your home has the necessary flow rate and pressure to support an unvented system. If your pressure meets the requirements, we will help you select the correctly sized cylinder based on your household's daily hot water demands.On installation day, our engineers carefully drain and decommission your old system, safely removing the obsolete cold water tank from your loft if you are upgrading from a gravity-fed setup. We then expertly position and install your new cylinder, integrating the required safety valves, expansion vessels, and thermostatic mixer controls. Finally, we carry out rigorous pressure testing and final commissioning to ensure the system runs flawlessly before we leave your home clean and tidy.

Making the switch to an unvented hot water cylinder provides several long-term benefits for your home. The most noticeable improvement is the dramatic increase in water pressure. Because the system does not rely on gravity, you will enjoy powerful, invigorating showers without the need to install noisy shower pumps. It also provides balanced hot and cold water pressure across all your taps, making it far easier to mix water to a comfortable temperature.Furthermore, an unvented system frees up valuable space in your property. By eliminating the need for a large cold water storage tank in your loft, you open up new possibilities for loft conversions or extra storage space. These modern cylinders are also heavily insulated, retaining heat exceptionally well and helping you reduce energy waste over time.

Safety and regulatory compliance are our top priorities. Unvented hot water systems operate at significant pressures and temperatures, which is why UK law mandates they must be installed in accordance with G3 Building Regulations. As a fully certified G3 installer, BC Plumbing guarantees that every safety mechanism—including pressure relief valves and temperature controls—is correctly specified and securely fitted.We also strictly use WRAS approved (Water Regulations Advisory Scheme) valves, fittings, and components to protect the integrity of your drinking water. Living in Devizes and the wider Wiltshire area means dealing with hard water scaling, which can drastically reduce the lifespan and efficiency of a hot water cylinder. To combat this, we highly recommend and can install appropriate scale inhibitors and water softeners alongside your new cylinder, protecting the heating elements from rapid limescale buildup.

From our base in Beckington, BC Plumbing proudly serves a 20-mile operating radius, covering towns and villages across Wiltshire and Somerset. We regularly provide specialist hot water and plumbing services to homes in Devizes, Trowbridge, Westbury, Warminster, Bradford-on-Avon, Bath, and Frome.Whether you live in a modern new build or a listed heritage property, we have the local expertise to recommend the safest and most efficient plumbing routes for your building type. If you are ever unsure whether your location falls within our catchment area, simply give us a call on 01373 482587 and our friendly team will be happy to assist.