6'598 companies found
Gurtner Gebäudetechnik GmbH
Riehen · Since 2021
The core activity of Gurtner Gebäudetechnik is the planning, consulting, project management and construction management as well as the execution of work in the field of building technology, particularly: sanitary installations, sheet metal work, flat and pitched roof work, lightning protection systems, renovations, conversions, new buildings, and maintenance and repair work. The company offers these services to private individuals, architects and property managers.
Hablützel Gebäudetechnik AG
Herisau · Since 2018
Hablützel Gebäudetechnik AG is a building services company providing planning, installation and maintenance for sanitary systems, heating, solar and cooling/ventilation/air‑conditioning. Services include energy consulting, heating renovations, design and installation of photovoltaic and thermal solar systems, battery storage, and ongoing service and project management.
Hablützel Gebäudetechnik AG
Degersheim · Since 2018
Hablützel Gebäudetechnik AG provides planning and installation services in building services engineering, covering sanitary installations, heating systems, solar thermal and photovoltaic systems, and cooling/air-conditioning solutions. Services include 3D bathroom planning, heating renovations, PV self-consumption optimization and battery storage, ventilation systems, maintenance, energy consulting and project coordination.
Hartmeyer AG
Altstätten Sg · Since 2014
The core activity of Hartmeyer AG is the planning, installation and maintenance of sanitary facilities, building technology and supply systems, including water, heat and gas installations, for single-family and multi-family homes, public buildings and industrial buildings.
Hofer Feuerungsservice GmbH
Wichtrach · Since 2010
The core activity of Hofer Feuerungsservice GmbH is the service and maintenance of combustion systems, particularly oil and gas combustion systems, as well as the performance of burner services and the rectification of malfunctions.
Hofmann Haustechnik AG
Elsau · Since 2011
Hofmann Haustechnik AG is a company for heating and sanitary installations. Services include installation and renovation of heating systems (oil, gas, heat pumps, solar, pellets), underfloor and radiator heating systems, water, gas and wastewater installations, hot-water production, water-softening and repair services.
Hofmann Haustechnik GmbH Heizungen Sanitär
Hunzenschwil · Since 2003
The core activity of Hofmann Haustechnik GmbH is the planning, installation and maintenance of heating and sanitary systems, including the provision of solutions for heat pumps, oil and gas heating, wood pellets, firewood, water softening, decalcification and sanitary facilities such as showers and toilet systems.
Hofmann + Mader AG
Münchenbuchsee · Since 1968
Hofmann + Mader AG performs dismantling and building deconstruction, carries out tank decommissioning, handles installation of heavy components, and provides hazardous-material investigations and remediation.
Hoti Gebäudetechnik GmbH
Brüttelen · Since 2021
The core activity of Hoti Gebäudetechnik GmbH is the provision of services in the field of sanitary and heating technology, particularly the installation, maintenance and repair of sanitary and heating systems, as well as the resolution of issues with water, wastewater and gas pipes.
Hugentobler Rain AG
Zuzwil Sg · Since 2013
The core activity of Hugentobler Rain AG is the sale, installation and repair of bathroom furniture, fixtures and accessories, particularly sinks, shower partitions and other bathroom accessories. The company also offers a comprehensive service, including assembly, repair and replacement of bathroom furniture and accessories, and has a large warehouse for sinks and other products.
IHT Fuchs GmbH
Escholzmatt · Since 2018
The core activity of IHT Fuchs is the provision of sanitary, heating and solar system services, including repair and maintenance work. The company also offers sanitary work and has a federally certified sanitary master.
Impianti 2000 Sagl
Giubiasco · Since 2013
Isolux S.A.
Cugy Vd · Since 1977
The core activity of ISOLUX is the manufacture and distribution of thermal equipment, particularly stainless steel water heaters (CHAUFFE-EAU EN INOX) and heat exchangers (ECHANGEURS de chaleur en inox), designed for various applications such as the production of hot water and heat recovery.
Itin Wassertechnik GmbH
Lausen · Since 2016
The core activity of Itin Wassertechnik GmbH is the consulting, sales and maintenance of drinking water treatment plants, in particular water softening systems and drinking water dispensers, as well as the performance of service and repair work for these systems.
Jaun Haustechnik GmbH
Liesberg · Since 2011
Jaun Haustechnik GmbH is a trades company specializing in sanitary, heating and ventilation systems, providing planning, installation and maintenance services. Offerings include new-build and renovation plumbing, repairs, water softening systems, bathroom projects (including bidet-toilet systems and specialist taps), heating systems (gas, oil, solid-fuel boilers and heat pumps) and ongoing service and emergency support; the company is a certified installer under the Wärmepumpen-System-Modul.
JCB, Jean-Claude Bonjour, successeur Olivier Bonjour
Blonay · Since 2018
The core activity of JCB Chauffage Sanitaire is the installation, maintenance, and repair of sanitary facilities, heating systems, and thermal installations, including: Sanitary facilities: installation, maintenance, and repair of sanitary facilities in buildings and industrial facilities, including water softening, piping work, water supply, and solar systems. Heating systems: installation, maintenance, and repair of various heating systems, including gas heating, wood heating, heat pumps, and oil heating. Thermal installations: installation, maintenance, and repair of thermal installations, including solar heating systems. The company also provides consulting, cost estimates, and studies for these services.
Josef Luternauer Sanitäre Anlagen, Spenglerei
Roggliswil · Since 1989
Joss + Huggenberger AG
Seon · Since 1988
The core activity of Joss & Huggenberger AG is the planning, installation and maintenance of heating systems, sanitary facilities and photovoltaic systems.
Kanaltip GmbH
Winterthur · Since 2024
The core activity of Kanaltip GmbH is the professional cleaning, maintenance and repair of sewage pipes, channels and drainage systems, including sewer cleaning, TV inspections, maintenance and repair as well as a 24/7 emergency service.
Karakas Gebäudetechnik
Dietikon · Since 2025
The core activity of Karakas Gebäudetechnik is the installation, maintenance and repair of sanitary and heating systems, including the provision of emergency services for pipe breaks, heating defects and other urgent problems.
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Source: Federal Statistical Office, UID register