Unvented Cylinder Service

£165.00

Unvented water heaters are safe to use if installed and maintained correctly though an annual service.

Please contact the office via phone or WhatsApp to arrange a booking. Online bookings are currently turned off until January 2026.

Time Slot (the engineer will arrive within the selected time)

Our engineer will carry out the following works on the service

  • Expansion relief valve testing
  • Temperature and pressure relief valve testing
  • Storage tank draining as needed
  • Combination valve/pressure reduction valve stripping and line strainer cleaning
  • Pressure expansion vessel check (if so equipped)
  • Expansion vessel pressure top up
  • Leak check
  • Main and boost immersion heater and thermostat function testing
  • Main and boost immersion heater resistance check
  • Service record completion and signing

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