Unvented hot water cylinder installation
Speak to our expert on 02086822244
At Happy Dog Plumbing, we provide expert unvented hot water cylinder installations across London. These sealed systems connect directly to your mains water supply, delivering high hot water pressure without needing a cold-water storage tank. Ideal for homes with multiple bathrooms, unvented cylinders offer excellent flow rates and improved energy efficiency. Our Gas Safe registered engineers install trusted brands like Heatrae Sadia and Megaflo Eco, ensuring long-lasting performance and safety. Made from durable stainless steel and fitted with an expansion vessel, these systems are perfect for maximising space in your home. Whether you’re upgrading your current heating system or replacing a gravity–fed setup, we’ll ensure your new cylinder is installed and maintained to the highest standard.
Arrange a visit from one of our experts
Call us on 02086822244, email hello@happydogplumbing.london, or send a message via our contact form to book your installation. Whether you’re upgrading your hot water system or need expert advice on unvented cylinders, our experienced team is ready to help.
In partnership with Maintracts Services
We’ve partnered with Maintracts Services to deliver fast, reliable responses to every enquiry. With a shared commitment to quality and efficiency, our joined-up team ensures a qualified boiler repair engineer is always close by—so you’re never left waiting when it matters most.
Expert hot water cylinder repairs and maintenance in London
Our service goes beyond installation—we also provide thorough repairs and routine maintenance for your hot water cylinder. Much like a boiler, manufacturers advise annual servicing to catch issues early and keep your system running safely. Regular checks help ensure all safety components and controls function properly, avoiding unexpected breakdowns and costly repairs.
Unvented hot water cylinder brand we work
Heatrae Sadia Megaflow
A market leader offering high-performance, mains-pressure hot water cylinders with excellent insulation, fast heat recovery, and stainless steel durability—perfect for homes with high hot water demand.
Gledhill Pulsacoil
Designed for properties with specific heating setups, Pulsacoil units are ideal for electrically heated homes, using thermal storage to deliver efficient hot water without a traditional boiler.
Santon Premier Plus
Manufactured from Duplex stainless steel with a 30-year anti-corrosion guarantee, Santon Premier Plus cylinders are reliable, efficient, and compatible with a range of heating systems.
Joule
Joule cylinders combine robust construction with superior insulation and are available in a variety of sizes—suitable for homes needing dependable, energy-efficient hot water solutions.
Ariston
Ariston unvented cylinders connect directly to the mains, ensuring strong, consistent water pressure without the need for a cold water tank—ideal for compact, modern homes.
Dimplex Quantum
A smart, energy-efficient option, Dimplex’s Quantum Water Cylinder uses advanced technology for hot water storage, offering reliability, safety, and reduced running costs in busy households.
OSO
OSO cylinders focus on energy efficiency and user-friendly design, delivering reliable mains-pressure hot water with durable materials and compact form—great for modern residential needs.
Why choose Happy Dog Plumber as your unvented hot water cylinder installer
Choose Happy Dog Plumbing for expert unvented hot water cylinder installation in London. Our Gas Safe registered engineers ensure safe, efficient service tailored to your home. We install trusted brands, offer transparent pricing, and provide ongoing support—making us a reliable choice for improving water pressure and hot water performance in your property.
Trusted experts in unvented cylinder installations
Our reputation for quality workmanship makes us a trusted choice across London. Don’t just take our word for it—browse through our customer reviews to see the level of service and professionalism you can expect when choosing us for your unvented hot water cylinder needs.
Our guarantee for your unvented cylinder installation
We take pride in delivering top-quality workmanship on every unvented cylinder installation. All work is backed by a 12-month guarantee, giving you peace of mind that your system is installed safely, efficiently, and to the highest standards—no matter the scale of the job. You can rely on us for dependable results.
Unvented hot water cylinder installation FAQs
Happy Dog Plumbing offers competitive and transparent pricing for unvented hot water cylinder installations. While the exact cost can vary depending on the specific requirements of your property and the type of cylinder chosen, we ensure clear pricing with no hidden fees. For a tailored quote, you are recommended to contact us directly to discuss your needs.
Happy Dog Plumbing employs professional heating engineers who are qualified to install all types of hot water cylinders, including unvented systems. Their team ensures that the installed unvented hot water cylinder is the right choice for your heating and hot water requirements.
At Happy Dog Plumbing, we emphasise the importance of annual servicing to prevent major faults and ensure all controls and safety devices are working correctly, which can contribute to the longevity of the system.
The optimal location for an unvented hot water cylinder is as close as possible to the main points of hot water usage, such as bathrooms and kitchens. Placing the cylinder near these areas reduces heat loss and ensures quicker delivery of hot water. Additionally, installing the cylinder close to the mains cold water inlet can help maintain consistent water pressure.
Don’t hesitate:
Get in touch
Rely on our plumbers to meet all your requirements. We’ve worked in and around London for years! Just call 02086822244 or email hello@happydogplumbing.london to tell us your requirements.
