Expansion Vessels

We understand that heating systems need high-quality components to operate at their best, which is why we stock first-rate expansion tanks and accessories. You'll find options from leading brands such as Zilmet and Altecnic that are built to withstand the demands of modern central heating. 

With a range of sizes on offer, from 2L options to 200L tanks, there's something to suit all properties. We also stock expansion vessel kits that give you essential tools to complete the job, such as double-check valves, filling loops and wall brackets.

You can narrow your search using our filters to look at different brands, capacities and prices. Once you've found the right expansion vessel, take advantage of free delivery when you spend over £75 or Click & Collect to pick up from your local branch.

We have a wide range of central heating expansion tanks to suit projects of all sizes. The right one for you will depend on a few factors, such as the system's expansion ratio, operating pressure and volume. Here are some of the options we have:

We stock a range of wall mounted expansion tanks in different capacities, so you'll find options to suit your requirements. These include the Zilmet 24L Wall Mounted Expansion Vessel and the Zilmet 18L Wall Mounted Expansion Vessel made from carbon steel with a hard-wearing powder-coated finish. 

Our floor standing expansion tanks offer exceptional reliability and performance. Choose from several options including the Zilmet 35L, Zilmet 50L and Zilmet 80L that are suitable for all types of heating systems.

When purchasing hot water expansion tanks, it's important to choose the correct size so that your system operates safely and efficiently. So, if you're unsure of which one to buy, head to your local branch where our friendly team will be happy to help. 

We're an award-winning heating and plumbing company with over 40 years of experience in the trade. Our goal is to help you find the right tools for your job, and we pride ourselves on giving you the best customer service along the way. This has led us to receiving thousands of positive reviews on Trustpilot from customers across the UK. 

We work with leading manufacturers to offer high-quality products at great prices, plus you can get free delivery on orders over £75. And don't forget our Click & Collect service from over 360 branches throughout the UK. Simply order your central heating tank online and we'll let you know when you can pick it up from your local branch.

Browse our range to find quality central heating expansion vessels and kits at great prices. If you prefer to shop in person, or have any questions, visit your nearest branch where our experts will be on hand to assist you.