Solar & Photovoltaics in
Rorschach

Carl Franke AG

Since 1980 · 1–10 empl.

The core activity of Carl Franke Haustechnik AG is the planning and execution of building technology in residential and commercial construction, including: Heating: design, estimation, installation of heat generators and distribution systems Sanitary: planning and execution of water, gas, compressed air and chemical lines, swimming pools and laundry drains Industrial piping: construction of industrial and commercial piping, cooling basins, transport lines and house connections Liquefied gas: inspection and installation of liquefied gas systems Solar systems: neutral design and estimation of solar systems The company also offers services such as cost estimates, scheduling and coordination with subcontractors.

Carl Franke Haustechnik AG

Since 2010 · 1–10 empl.·4.6(13)

The core activity of Carl Franke Haustechnik AG encompasses the planning and execution of building technology in residential and commercial construction, including: Heating: design, estimation, installation of heat generators and distribution systems Sanitary: planning and execution of water, gas, compressed air and chemical lines, swimming pools and laundry drains Industrial piping: construction of industrial piping for industry and commerce, cooling basins, transport lines and house connections Liquid gas: inspections and installations The company also offers neutral design and estimation of solar systems and coordinates with subcontractors.

Cioce AG

Since 2010 · 1–10 empl.

The core activity of CIOCE Gebäudetechnik is the planning, installation, maintenance and servicing of building technology systems, including heating, ventilation, air conditioning, sanitary and electrical installations.

LGTEC AG

Since 2015 · 1–10 empl.

LGTEC AG develops a technology for the metallization of solar cells that enables fine contact grid lines without using silver. The method reduces grid-line widths to about 10 micrometers and produces them in a single process step; the company offers sampling on a demonstrator machine for technology evaluation.

SolarTech Steffen Kopischke

Since 2023 · 1–10 empl.

The core activity of SolarTech Steffen Kopischke is the planning, implementation and maintenance of environmentally friendly energy solutions, particularly in the field of solar technology. This includes the installation and servicing of solar systems, heat pumps and other sustainable energy systems. The company offers a wide range of solutions to meet the individual energy needs of its customers while having a positive impact on the environment.

Rotard Group AG

Since 2022 · 1–10 empl.

GreenPower Projects AG

Since 2008 · 1–10 empl.

Clever Fenster GmbH

Since 2024 · 1–10 empl.

Quality Solar, Inh. Wilhelmy

Since 2024 · 1–10 empl.