Plumber in London

Hot Water Cylinder Installation in London

Need reliable access to hot water in every corner of your home? At Arcas Plumbing, we provide expert hot water cylinder installation in London—perfect for property upgrades, conversions from combi systems, or new build installations.

Our qualified engineers fit both vented and unvented cylinders, carefully selecting the right solution based on your home’s size, water pressure, and daily usage. Whether you need improved water flow in multiple bathrooms or want a system that’s compatible with renewable heating, we’ll ensure safe, efficient installation from start to finish. Count on Arcas Plumbing for dependable hot water, day in and day out.

Common Reasons for Installing a Hot Water Cylinder

  • Insufficient hot water supply
  • Switching from combi to system boiler
  • Adding a secondary bathroom or en-suite
  • Existing cylinder is outdated or leaking
  • Pressure problems with taps or showers
  • Need for higher hot water storage capacity

What’s Included in Our Hot Water Cylinder Installation?

We take care of the full installation from start to finish, ensuring everything is properly sized, fitted, and tested:


  • Removal of your old cylinder (if required)
  • Advice on vented vs. unvented cylinder options
  • Installation of pipework and valves
  • Safety components including pressure relief and thermostats
  • System testing for leaks, flow, and temperature
  • Guidance on safe operation and maintenance


We install only high-quality cylinders from trusted manufacturers to ensure long-term reliability and energy efficiency.

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FAQs

What’s the difference between vented and unvented cylinders?

Vented cylinders are gravity-fed and require a cold water tank, while unvented cylinders are mains-fed and offer better pressure. We’ll help you choose the right type for your home.

How long does installation take?

Most installations are completed within one day, depending on access and system complexity.

Can I replace my old copper cylinder with a modern unvented one?

Yes, we can upgrade your system and bring it up to current safety and performance standards.

Is planning permission or a building notice required?

Unvented cylinders must be installed by a qualified engineer and may require building control notification—we handle all the compliance for you.

Still have a question?

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We serve London and the surrounding towns and commuter areas.

Enfield

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Croydon

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Newham

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Brent

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Ealing

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Barnet

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Wandsworth

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Hillingdon

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Kingston upon Thames

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Guildford

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Redbridge

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Tower Hamlets

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London

About Arcas Plumbing

A Team of Reliable Full-Service Plumbing Experts for Homes and Businesses Across London.


With over 15 years of experience delivering expert plumbing services across London, Arcas Plumbing is your trusted, family-run local business. From quick fixes to complex plumbing and heating issues, our skilled engineers provide honest advice, fast diagnostics, and reliable solutions—all at competitive prices.

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Arcas Plumbing in London

Have an Emergency?


Need help with plumbing or heating? Arcas Plumbing offers fast, affordable emergency services—just a call away.

For immediate assistance with plumbing emergencies in London, reach out to us:

Phone: 077 2365 1551 

Online Contact Form: Contact Us