Specialized Construction Installations

GKL Schweiz GmbH 

Thayngen · Since 2020

The core activity of GKL consists of developing, producing and installing municipal guidance systems and signage for industrial areas, cities and municipalities. This includes planning and implementing uniform and clear signage systems that enable clear orientation and navigation in industrial areas. GKL also offers services to companies and businesses, such as creating company signs, illuminated advertisements and orientation panels.

GLASNESS Glassey Sébastien 

Vétroz · Since 2011

The core activity of Glasness is the manufacture and distribution of heating appliances, particularly: wood-burning stoves, pellet stoves, hybrid stoves (wood-pellet), which can burn both wood and pellets, fireplaces and fireplace inserts, wood and pellet cooking stoves, boilers and outdoor heating appliances. In addition, the company also offers services such as installation and maintenance of heating appliances, as well as the sale of accessories like chimneys and exhaust pipes.

Glutform Füürparadies GmbH 

Pratteln · Since 2024

glutform SG GmbH 

Arnegg · Since 2015

GMC Stores Sàrl 

Villeneuve Vd · Since 2022

GMC Stores Sàrl supplies, installs and services window‑covering and closure systems and related products. The range includes venetian and roller blinds, awnings and awning fabrics, pergolas, mosquito nets, garage doors, and motorisation and home‑automation solutions.

Good Sonnenschutz GmbH 

Mels · Since 2014

Good Sonnenschutz GmbH provides consulting on sun and weather protection systems for architects and planners. The company offers training on the application of various products for specialist installers and is a member of VSR Schweiz (Verband Sonnenschutz und Storentechnik).

grbau gmbh 

Fläsch · Since 2020

The core activity of grbau gmbh is consulting, brokerage and execution of assembly orders of all kinds, particularly in the field of wood-based materials, stone coverings, electrical appliances, windows and glazing. The company also offers services such as coordinating construction projects, taking measurements and assembling doors, windows and other building elements.

Green Air AG 

Schlieren · Since 2016

The core activity of Green Air AG consists of planning, installing and maintaining heating, ventilation and air conditioning systems for industrial and residential buildings, with the aim of creating a balanced and pleasant indoor climate.

Gremion et Staremberg SA 

Epagny · Since 2019

Grieder Haustechnik AG 

Füllinsdorf · Since 1976

The core activity of Grieder Haustechnik AG encompasses the planning, installation, and maintenance of building technology systems, particularly in the areas of: Heating (heat pumps, heating systems, new installations, renovations, gas heating and oil heating, boiler replacement, radiators, and floor heating); Sanitation (sanitary facilities, new construction, bathroom renovations, water treatment, sanitary installations, fixtures, sanitary technology, devices, water filters); and Ventilation (exhaust air, supply air, ventilation systems, new installations, renovations, ventilation control, fresh air supply, exhaust air cleaning, ventilation grilles). The company also offers consulting and planning services for these areas and places a strong emphasis on the highest quality standards, punctuality, precision, and professionalism.

Grieder Ofenbau AG 

Zurich · Since 1976

The company's core activity is the sale, consulting and construction of fireplaces, chimneys, tile stoves, soapstone stoves and other heating systems, including the corresponding components and accessories.

Grischa Kälte AG 

Zizers · Since 2009

The core activity of Grischa Kälte AG is the planning, installation, maintenance and repair of refrigeration and air conditioning systems.

Grogg Sicherheitstechnik GmbH 

Belp · Since 2020

The core activity of Grogg Sicherheitstechnik GmbH is the provision of services and the sale of products in the field of security technology, particularly: key services, burglary protection, locking systems, security devices for doors and windows, and the sale of security products such as locks, keys, padlocks, cash boxes and other security articles. The company also offers services such as the installation and maintenance of security systems.

G. Seiz AG 

Kirchberg Sg · Since 1987

The core activity of G. Seiz AG is the planning, installation and renovation of heating, ventilation and sanitary systems, particularly in the area of controlled residential ventilation, pipeline construction, chimney construction and the conversion or renovation of sanitary facilities.

GST Solutions GmbH 

Zurich · Since 2020

The core activity of GST Solutions GmbH is the planning, integration and maintenance of intelligent building control systems, particularly with KNX and Loxone technologies. This includes consulting, project planning, electrical installation, energy management, heating control, access systems and smart pool solutions for residential and commercial buildings.

GTB Prog Sàrl 

Givisiez · Since 2022

The core activity of GTB Prog Sàrl is the development and implementation of domotics solutions, i.e. home automation and building technology control.

GTR-Luft GmbH 

Baar · Since 2005

GTR-Luft GmbH provides ventilation, heating and smoke-extraction systems, including commercial kitchen ventilation (SÜDLUFT) and decentralized air heaters. Services cover site analysis, planning, installation, commissioning and after-sales service.

Gübeli Energie Technik GmbH 

Degersheim · Since 2012

The core activity of Gübeli Energie Technik GmbH is the planning, consulting and implementation of projects in the field of heating, ventilation, air conditioning and energy, with a focus on efficient, environmentally friendly and integral solutions.

Güdel Oefen AG 

Muttenz · Since 1989

The core activity of Güdel Öfen AG is the manufacture and distribution of ceramic wall and floor coverings, fireplaces and tile stoves, as well as the execution of conversions and renovations in the construction industry.

Gurten Storen GmbH 

Köniz · Since 2022

The core activity of Gurten Storen GmbH is the planning, consulting, installation and repair of sunshade solutions, including slat blinds, roller shutters, sunshades, conservatory shading, interior shading, window shutters and side shading.