Plumbing & Building Services

Gersbach AG 

Rheinfelden · Since 1987

The core activity of Gersbach AG consists of planning, installing and maintaining sanitary facilities and heating systems, including bathroom renovations, boiler replacements, radiator and floor heating systems, as well as consulting and implementing energy-saving measures.

gex sa ventilation - climatisation 

Aigle · Since 2001

gex sa ventilation - climatisation provides planning and consulting services and performs fabrication, installation and commissioning of ventilation and air‑conditioning systems. Services include air treatment systems, reversible air conditioners, duct fabrication, maintenance and cleaning, as well as a 24‑hour emergency service.

gex sa ventilation - climatisation, succursale de Satigny 

Satigny · Since 2023

gex sa ventilation - climatisation, succursale de Satigny provides consulting and planning as well as fabrication, installation and commissioning of ventilation, air‑treatment and air‑conditioning systems. The company also offers maintenance, cleaning services and a 24‑hour emergency service for these installations.

G&G Sanitaire SA 

Le Mont-Sur-Lausanne · Since 2019

The company gg-sanitaire.ch is active in the field of sanitary installations.

GH Sanitaire-Chauffage Sàrl 

Romanel-Sur-Morges · Since 2025

GH Sanitaire-Chauffage Sàrl is a service company for sanitary, heating and ventilation systems offering emergency repairs, drain unclogging, leak detection, descaling and appliance replacement. The company also performs installations and renovations of bathrooms and kitchens as well as heating-system installation for houses and apartment buildings.

Gianni Godi SA 

Cadro · Since 1994

Gianni Godi SA provides plumbing, heating and renewable energy services. The company designs, installs and maintains heating, ventilation and sanitary systems, undertakes bathroom projects and offers emergency repair and turnkey solutions.

Gianni Lettieri Sanitär 

Wolfhausen · Since 2004

The core activity of G. Lettieri Sanitär Wolfhausen is the planning, installation, maintenance and repair of sanitary systems, including new construction and renovation of sanitary facilities.

Gian-Paolo Ziulu Cawa Haustechnik 

Basel · Since 2023

The core activity of cawa-Haustechnik is the provision of services in the field of building technology, particularly in the Basel region.

Giger Wärmetechnik GmbH 

Freidorf Tg · Since 2020

The core activity of Giger Wärmetechnik GmbH is the service and maintenance of burners and heating systems, particularly in Eastern Switzerland.

Giovannini Sanitaires SA 

Gingins · Since 2020

Giovannini Sanitaires SA is a company for sanitary, heating and air-conditioning installations offering installation, maintenance, repairs and renovations. Services include water treatment (softeners, reverse osmosis), heat pump installation and servicing, air-conditioning systems, 24/7 emergency repairs, and project coordination including permit and subsidy handling.

Giovanoli & Willy SA Impianti sanitari, riscaldamenti e ventilazioni 

Borgonovo · Since 2007

The core activity of Giovanoli & Willy SA encompasses the planning, installation, maintenance and repair of: Sanitary and heating systems, Ventilation systems, Water supply and wastewater systems, Fire protection systems, Solar systems, Gas systems, Heat generation and distribution systems, Pump and heating systems for renewable energy. The company also offers emergency services and specializes in the realization of projects in the field of building technology, from small individual systems to larger systems for residential, commercial and public buildings.

Giston AG 

Samedan · Since 1982

The core activity of Giston includes the planning, implementation and maintenance of heating, ventilation and sanitary systems. This includes in particular: Heating: planning and installation of heating systems such as heat pumps, wood and pellet heating systems, oil heating systems, as well as room regulation and heating control via WLAN or GSM. Ventilation: planning and installation of ventilation systems for new buildings, ventilation service and consulting, wet cell and kitchen exhaust, controlled residential ventilation, commercial ventilation, kitchen and restaurant ventilation, as well as ventilation cleaning and humidification. Sanitary: planning and installation of sanitary work for new buildings, sanitary service and consulting, bathroom renovations and conversions, as well as maintenance and service work. The company offers these services for new buildings, renovations and existing buildings and also provides a 24/7 emergency service for its customers.

Gjino GmbH 

Kloten · Since 2015

GK Lüftung AG 

Zurich · Since 2025

GK Lüftung AG is a building services company specializing in ventilation and HVAC systems. It provides consulting, engineering and execution as well as maintenance, decommissioning and client support for new‑build, renovation and tenant fit‑out projects.

GK Lüftung AG 

Pfäffikon Sz · Since 2022

GK Lüftung AG is a building services company specializing in ventilation and HVAC systems. Its services include consultancy, design, installation, maintenance, dismantling and client support for ventilation, heating, cooling and sanitary systems, as well as project work for new builds, renovations and tenant fit-outs.

GK Wärme und Metall GmbH 

Galgenen · Since 2010

The core activity of GK Wärme und Metall GmbH is the provision of services in the field of heating and metal processing. Specifically, this includes the manufacture of railings, stairs and balconies in the locksmith's shop, the installation and maintenance of firing systems, the provision of mobile heating systems, as well as the execution of special works, including repairs and special productions.

Glatt Gebäudetechnik AG 

Wallisellen · Since 2023

The core activity of Glatt Gebäudetechnik GmbH is the planning, installation and maintenance of building technology systems, including energy-efficient solutions, to create optimal well-being and comfort in buildings.

Glaus-Handwerk GmbH 

Bennau · Since 2023

GL Wärmepumpen GmbH 

Hünenberg · Since 2020

GL Wärmepumpen GmbH supplies heat pumps and provides product information on its GL Inverter model range (e.g. GL Inverter 12M, 15M, 19M, 30M).

G. Nikollbibaj Sanitär Heizung GmbH 

Erlenbach Zh · Since 2024

G. Nikollbibaj Sanitär Heizung GmbH provides plumbing and heating services, including bathroom and kitchen renovations, boiler servicing and replacement, repairs, and advice and installation of water-softening systems and shower-toilet (Dusch-WC) units. The company also performs fitting and appliance replacement and operates an emergency on-call service; hourly rates and standby fees are listed on the website.