— Our Services
Unvented Hot Water Cylinder Installation
— About This Service
Unvented Hot Water Cylinder Installation
Rpk Plumbing and Heating installs and commissions unvented hot water cylinders across Telford and surrounding areas. Owner-run with 28 years' experience, the business designs systems to suit new builds, bespoke homes and properties using air source heat pumps or oil boilers. Installations include full pipework, safety valves, expansion vessels and a complete commissioning and handover with documentation. All work is completed to meet Building Regulations and safe-working practice.

— Our Process
How It Works
Survey & System Design
On-site assessment of cold water supply, hot water demand and heating source; bespoke sizing and layout for new builds or one-off homes.
Installation & Integration
Secure install of cylinder, expansion vessel, safety valves and pipework; integration with ASHP, oil or gas boilers as specified.
Commissioning & Handover
Pressure tests, safety checks, temperature settings, and a commissioning certificate with manufacturer instructions and system notes for handover.
— Benefits
Why Choose Unvented Hot Water Cylinder Installation?
Tailored for New Builds & One-Off Homes
Owner-led design that coordinates with builders and PLUMBING trades to fit tight build programmes and bespoke layouts.
Works with Renewable and Rural Systems
Proven experience integrating unvented cylinders with air source heat pumps and oil-fired boilers for efficient hot water delivery.
Hands-on, Reliable Expertise
28 years' hands-on experience means accurate installs, correct safety components and a clear commissioning process you can trust.
High-pressure hot water exactly where you need it. An unvented hot water cylinder delivers mains-pressure hot water to multiple showers, taps and baths without the need for a cold water storage tank in the loft. For new builds and one-off homes around Telford, this is the preferred solution where performance, neat plantrooms and compatibility with modern heating systems matter.
What the installation includes:
- Full site survey and bespoke cylinder sizing based on number of outlets and peak demand.
- Supply and installation of expansion vessel, pressure relief valve, non-return/check valves and all safety devices required by Building Regulations (Approved Document G).
- Integration with your primary heat source — compatible with air source heat pumps, oil boilers and common boiler brands such as Worcester, Grant and Warmflow.
- Commissioning, pressure testing, temperature settings and a written handover including manufacturer instructions and commissioning certificate.
— FAQ
Frequently Asked Questions
An unvented cylinder stores hot water at mains pressure, so taps and showers get strong flow without a header tank. Vented systems rely on a cold water cistern and deliver lower pressure; unvented cylinders need safety devices and a competent installer for correct commissioning.
Ready for reliable, mains-pressure hot water?
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