Thermys
Carouge
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Thermys, based in Carouge near Geneva, specializes in installation, maintenance and repair of heat pumps across French-speaking Switzerland. Preventive maintenance runs through annual service contracts, and the company also handles replacing and upgrading entire systems. For diagnosing and fixing faults, the company says a team is on standby seven days a week.
Coverage includes the cantons of Vaud, Geneva, Valais, Fribourg, Neuchâtel and Jura. The work is carried out by certified technicians, and the company grants two years of warranty on materials and labor, which can be extended through an annual maintenance contract. The website is in French.