Annual maintenance and system upgrades are always included in our service.
For our customers, a cold November morning is just another morning. But for many property owners with their own geothermal system, the first freezing day often comes as an unpleasant surprise. When the heating season begins, neglected maintenance can quickly lead to problems, with indoor temperatures dropping to 15°C. Service queues grow, energy consumption spirals out of control, and every hour of downtime comes at a cost.
This is reality for many — but not for our customers.
With Voltan’s service model, you only pay for the energy you use, and we take care of the rest. We look after your property’s geothermal system on your behalf, well before any problems arise. Regular maintenance keeps energy consumption under control, extends equipment lifetime, and ensures reliable heating performance in all conditions.
When you choose us as your geothermal partner, annual maintenance and system upgrades are always included in our service. We ensure that your system operates efficiently and safely throughout the entire season — before issues even have a chance to develop.
Annual maintenance includes, for example:
🔹 Statutory refrigerant inspections
🔹 Cleaning of evaporator and condenser circuit filters
🔹 Expansion vessel pre-charge checks and fluid top-ups
🔹 System venting, heat pump and auxiliary heating source testing
🔹 Automation alarm diagnostics and replacement of faulty components
Maintenance, upkeep, upgrades, and fault management are our responsibility.
The result is an energy-efficient, risk-free, and worry-free property operation — exactly as it should be.