
Plumber in London
Hot Water Cylinder Installation in London
Need dependable hot water throughout your home? At 24/7 London Plumbers, we provide expert hot water cylinder installation in London—whether you’re upgrading an old tank, switching from a combi boiler, or fitting a new cylinder in a recently built property.
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- Existing cylinder is outdated or leaking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.

Why Choose 24/7 London Plumbers?
- Round-the-Clock Service: Our emergency plumbing team is available 247 plumber London, ready whenever you need assistance.
- Experienced Engineers: Our professionals are highly trained London plumbers, capable of handling all aspects of plumbing installation and repair.
- Rapid Response: We arrive quickly to prevent disruption and restore your system.
- Upfront Costs: We provide clear, honest pricing with no hidden extras.
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.