- cleaning of the water heater
- checking the thermal insulation of external pipes
- checking of connections, valves, seals, pumps, etc.
- checking the good condition of the expansion tank and its parameters
- checking the acidity level and efficiency rate of the liquid

The service does not include:
- any eventual repairs
- maintenance kits prescribed by the manufacturer
- extra workload due to previous maintenance not performed
- adding or replacing solar liquid
[SRECES-SREPES] Solar tank maintenance

- cleaning of the ventilation system
- checking and replacing the ventilation unit filters
- maintenance of the internal heat exchanger of the unit
- checking of the supply and extraction vents
- filter kits

The service does not include:
- any necessary repairs
- any additional workload caused by previous neglected maintenance
[SREVDCA] Zehnder Comfo-Air ventilation maintenance

- cleaning of the water heater
- checking the thermal insulation of external pipes
- checking of connections, valves, seals, pumps, etc.
- checking the good condition of the expansion tank and its parameters
- checking the acidity level and efficiency rate of the liquid

The service does not include:
- any eventual repairs
- maintenance kits prescribed by the manufacturer
- extra workload due to previous maintenance not performed
- adding or replacing solar liquid
[SRECES-SREPES] Solar tank maintenance