Unvented Cylinders

Hot water solutions for modern homes

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Unvented Cylinder Specialists

Unvented hot water cylinders provide mains-pressure hot water throughout your home, delivering powerful showers and improved water flow without the need for a cold water tank in the loft. At Reliant Plumbing & Heating Ltd, we're fully qualified to install, service, and repair unvented cylinders, ensuring your system operates safely and efficiently. This specialist qualification is a legal requirement for working on pressurised hot water systems, and our expertise gives you confidence that the work is completed to the highest standards.

Modern unvented cylinders offer significant advantages over traditional vented systems, including faster bath filling, better shower performance, and more usable loft space. They're particularly beneficial in properties with multiple bathrooms or high hot water demand. Whether you're upgrading from a vented system, replacing an existing unvented cylinder, or installing hot water in a new extension, we'll recommend the right capacity and specification for your household's needs.

Unvented Cylinder Services We Provide

Working with unvented systems requires specialist knowledge of pressure controls, safety devices, and building regulations. Our G3 qualification demonstrates our competence in all aspects of unvented cylinder work.

Our services include:

  • New unvented cylinder installations
  • Replacement of failed or inefficient cylinders
  • Annual servicing and safety checks
  • Pressure relief valve testing and replacement
  • Expansion vessel servicing
  • Temperature and pressure control repairs
  • Upgrades from vented to unvented systems
  • Fault diagnosis and emergency repairs
  • System commissioning and certification

Professional Hot Water Solutions Across Cambridge

With team members with 20+ years in the industry, we've installed and maintained unvented cylinders across diverse properties throughout Cambridgeshire. We serve domestic customers across Cambridge, providing the same meticulous attention to detail on every installation. Our Homecare Plans offer ongoing support for your hot water system, with Gold Plan members receiving coverage for hot water cylinders, expansion tanks, and related components.

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Why Choose Reliant Plumbing & Heating?

When it comes to your home's heating system, you need a company you can trust. With over 15 years of experience serving homeowners and contractors across Cambridge, we pride ourselves on delivering exceptional service, expert workmanship, and honest advice every time. Here's what sets us apart:

Here for all your plumbing and heating needs

Whether you need a new boiler, an urgent repair, or want to protect your heating system with one of our Homecare Plans, we're here to help customers across Cambridge.

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