Our Services
Unvented Cylinders
Mains-pressure hot water across showers and taps, installed and serviced to current Building Regulations by a G3 certified, Gas Safe registered engineer serving Norwich and Poringland.
About This Service
Unvented Cylinders
Norwich Heating Services fits and maintains unvented hot water cylinders for properties that need reliable mains-pressure hot water at multiple outlets. With over 20 years' hands-on experience, installations are completed to G3 and Building Regulations standards, with compliance documentation issued and systems commissioned and safe. Site surveys, honest system design and annual servicing ensure efficient performance for years — with fast local response for repairs and emergencies across Norwich, Poringland and surrounding Norfolk towns.
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Our Process
How It Works
Survey & System Design
On-site assessment of hot water demand, mains pressure and space — cylinder size and ancillary kit (expansion vessel, valves, pressure reducing valve) recommended with a written, no-obligation proposal.
Installation & Commissioning
Certified engineer installs to G3 and Building Regulations, fits safety controls, carries out pressure testing and issues a full commissioning checklist and compliance certificate.
Handover & Ongoing Care
Controls are demonstrated, documentation left, work registered with Building Control if required, and annual servicing and fast emergency repairs offered to keep the system safe and efficient.
Benefits
Why Choose us for Unvented Cylinders?
Reliable mains‑pressure hot water
Powerful showers and simultaneous outlets — cylinders and ancillaries are sized to match family bathrooms, en suites and high-flow showers common in Norfolk homes.
Certified, compliant work
G3 certified and Gas Safe registered installation and commissioning to Building Regulations — with necessary compliance paperwork provided and £5m public liability cover.
Local expertise & fast response
Based in Poringland with 20 years' experience, Martyn prioritises fast response times for repairs and emergencies across Norwich and surrounding villages.
What's installed — modern unvented cylinders (stainless steel or factory-insulated copper/indirect types) sized to your household demand, complete with expansion vessels, pressure relief valves, temperature controls and pressure reducing valves where needed. Suitable for family houses, flats and larger properties that require mains-pressure hot water to multiple showers and taps without a loft cold tank.
Safe, compliant servicing — all installations are carried out by a G3 certified, Gas Safe registered engineer and come with a full commissioning certificate and paperwork for Building Control when required. Annual servicing is available to test relief valves, check the expansion vessel and thermostats, and issue a service record that helps maintain performance and warranty conditions.
Local, practical advice — Some older Norwich and Norfolk properties need minor adaptations (pump upgrades, incoming mains checks or additional safety kit) before an unvented cylinder can be fitted — options are explained clearly with the most robust, cost-effective solution recommended for your property type. To arrange a site survey or discuss an existing cylinder call 07830 829741 or email info@norwichheatingservices.co.uk.
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FAQ
Frequently Asked Questions
Vented systems use a cold water tank in the loft and rely on gravity for flow; unvented cylinders connect directly to the mains and deliver high pressure at taps and showers. That means better shower performance and no loft tank, but unvented systems must be fitted to G3 standards with appropriate safety valves and an expansion vessel.