We provide design, construction, inspection, service and repair of electrical equipment in the voltage level of 0.4 to 400kV - transformer stations, industrial installations, PV plants, biogas stations and public lighting. We carry out earthworks and earth protrusions. We offer services from project documentation to implementation.

We provide design, construction, inspection, service and repair of electrical equipment in the voltage level of 0.4 to 400kV - transformer stations, industrial installations, PV plants, biogas stations and public lighting. We carry out earthworks and earth protrusions. We offer services from project documentation to implementation.

Offering turnkey electrical work, from design and implementation to initial inspection. We mainly carry out high current wiring. We provide complete supply, reconstruction and repair of electrical installations in residential and non-residential buildings. We are dedicated to the installation of lightning rods on buildings of all classes.

Carrying out installation of industrial and domestic wiring and cable runs. We offer transformer and substation installations for 6, 22, 35 and 110 kV, earthing and lightning conductors, indoor and outdoor lighting, backup power and spare power supplies, motor and process installation including switchgear.

We specialize in the design, inspection, installation and repair of electrical equipment. We manufacture all-concrete, combination and steel plate transformers and high and low voltage switching stations for distribution power companies.

We are engaged in the revision of all types of installations with E1A authorization. Revision of electrical installations without voltage limitation and revision and inspection of PV plants of all types. We also carry out replacements and modifications of metering and circuit cabinets, including new connections.

Kormak Praha a. s. (PRE Group) offers the construction of electrical power structures, installation and repair of cable sets, construction and rental of transformer stations. Furthermore, installation of terminals and couplings, inspection, maintenance and contractual breakdown service. We provide complete design work and construction of public lighting.

We provide electrical installations and inspections of electrical equipment without voltage limitations. We manufacture switchboards for construction, industry and technology.

Manufacture and sale of lightning rods and surge protectors.

We offer inspection, repair, replacement and maintenance of electrical equipment. We carry out projects of low and high voltage electrical equipment. We provide installation of lightning conductors and electrical fire alarm systems. We are involved in electrical repairs of circuit breakers as well as adjustments of circuit breakers.

We provide inspection of electrical installations up to 1000 V, electrical appliances and hand tools. Offer electrical installation and wiring work.

We provide supply and installation of high and low current equipment.