Unvented Cylinder Installation and Service

Why Choose an Unvented Cylinder?

An unvented cylinder delivers hot water at mains pressure directly to your taps and showers — no cold water tank required in the loft, and no waiting for pressure to build. Whether you're upgrading from a traditional vented system or moving into a new property, an unvented cylinder is one of the most effective ways to improve your home's hot water performance.

As a Gas Safe registered heating engineer based in Gravesend, I supply and install unvented cylinders throughout Kent, including Dartford, Longfield, and the surrounding areas.

What Is an Unvented Cylinder?

An unvented cylinder is a sealed hot water storage system connected directly to the mains water supply. Because it's fed by mains pressure, you get a stronger, more consistent flow of hot water to every outlet in your home — perfect for households with multiple bathrooms or high hot water demand.

Unlike traditional vented systems, there's no need for a cold water tank in the loft, freeing up valuable space and reducing the risk of contamination.

Installation

Installing an unvented cylinder is a job for a qualified engineer. I am G3 certified — the legal requirement for anyone working on unvented hot water systems. I'll assess your property, recommend the right cylinder size and specification for your household, and carry out the installation to the highest standard, with full testing and commissioning before I leave.

Servicing and Maintenance

Like any pressurised system, unvented cylinders require regular servicing to keep them safe and efficient. I recommend an annual service to check the pressure relief valve, expansion vessel, and all safety components. This helps prevent unexpected breakdowns and ensures your cylinder remains within manufacturer warranty conditions.

Brands I Work With

Working with high-quality brands to provide the best service — I only recommend products I trust.

Gledhill

A leading UK manufacturer of unvented hot water cylinders, Gledhill products are known for their reliability, energy efficiency, and long-lasting performance. They're one of the most trusted names in the industry, and a brand I'm happy to recommend and install.

Monarch Water

Monarch Water offer a range of high-quality water heating and treatment solutions, ideal for homes looking to improve both hot water output and water quality.

Get in Touch

If you're considering an unvented cylinder installation in Gravesend, Dartford, or anywhere across Kent, I'd love to help. Call me on 07813 586111 or 01474 630211 for a free, no-obligation quote — or fill in my contact form and I'll get back to you as soon as possible.