Unvented Cylinder Service
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Unvented Cylinder Servicing
Keep your unvented hot water cylinder operating safely and efficiently with a full annual service. This is a requirement for maintaining manufacturer warranty and ensuring compliance with G3 Building Regulations.
Pricing and information:
Unvented Cylinder Servicing
From £90
Service inclues:
Inspection of pressure-reducing valve and expansion vessel
Check and test of temperature and pressure relief valves (T&P)
Discharge pipework inspection and flow check
Check of pressure gauge and vessel air charge
Visual inspection of cylinder condition and pipework
Operation check of immersion heater (if present)
Issuing of service record (digital or paper)
A service typically takes 45–60 minutes. Access to the cylinder and isolation valves is required.




Why Annual Servicing Matters:
- Maintains compliance with G3 Building Regulations
- Prevents risk of overheating and discharge issues
- Helps extend the life of your system
- Keeps your manufacturer warranty valid
