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KERTEK s.r.o. is managed by managing director Matěj Polášek, building directly on his prior independent trade experience in electrical installations and residential energy systems. Our registered office in Prague 2 serves as an administrative address, while all surveys and installations take place directly on construction sites.

We specialize in air-to-water heat pumps, photovoltaic systems and power and data electrical installations in residential buildings (both new builds and renovations within low-voltage networks up to 1 kV, TN-C-S earthing system). Every installation is designed so that connection capacity, protection devices and connected loads work as a unified system.

All work is carried out in compliance with applicable ČSN standards and handed over with complete as-built documentation and a handover protocol. Initial inspection for completed projects is always provided by an independent certified inspector.