Plumbing & Building Services

Schäfli & Dieterich AG 

Frauenfeld · Since 2016

Schäfli & Dieterich AG provides building services engineering, offering design, installation and maintenance of sanitary, heating and energy systems. Offerings include bathroom and heating installations, energy assessments (GEAK), solar/PV systems and a seven-day emergency service.

Schäfli Management AG 

Frauenfeld · Since 1973

SERVICES PLUS ENERGIES SA 

Bernex · Since 2008

The core activity of Services Plus Energies SA is the planning, installation, maintenance and repair of heating, ventilation and air conditioning systems, as well as the use of renewable energies such as solar and wood energy. The company also provides services in the field of energy efficiency, such as optimizing energy consumption and conducting energy audits.

Swiss Hydro Sàrl 

Lausanne 27 · Since 2022

The core activity of SwissHydro is the development and distribution of solutions for the natural treatment and revitalization of water in various fields of application, including drinking water, industrial processes and building technology. The company offers products and services aimed at improving water quality, reducing energy consumption and protecting the environment.

Tecaro S.A. 

Cortaillod · Since 1990

The core activity of Tecaro SA consists of the installation, maintenance and repair of sanitary facilities and heating systems, including the provision of emergency services (24/7) and the planning of projects in the field of sanitary and heating technology.

Walter Weber AG Heizung-Lüftung 

Gelterkinden · Since 2016

SQ Haustechnik GmbH 

Oensingen · Since 2025

SQ Haustechnik GmbH is a building services company providing sanitary, heating and ventilation services including planning, installation, maintenance and repair. Services cover bathroom planning and renovations, installation and servicing of heating systems (oil, gas, wood and renewable technologies) and ventilation systems with heat recovery, cleaning and upkeep.

3-Plan AG 

Winterthur · Since 1993

3-Plan AG is an engineering and consulting firm focused on building services and energy for the built environment. It delivers project development, technical building services planning (electrical, heating, ventilation, cooling, sanitary), specialist coordination, BIM/VDC services, prefabrication (Planer Plus), and support for operation and project management.

3-Plan Haustechnik Violka + Partner AG 

Kreuzlingen · Since 1999

3-Plan Haustechnik Violka + Partner AG is an engineering and consulting firm for building services and energy in building construction. Its services include technical development, TGA planning (electrical, heating, ventilation, cooling, sanitary), BIM/VDC-based modelling and operational services such as measurements, analyses, optimizations and digital facility management.

3-Plan Winterthur AG 

Winterthur · Since 1987

3-Plan Winterthur AG is an engineering and consulting firm for building services and energy in buildings, providing technical concept development and BIM/VDC-based planning. Its services include TGA planning (electrical, heating, ventilation, cooling, sanitary systems), specialist coordination, technical and energy development, operational analyses and digital facility management.

Baier Haustechnik Inhaber Vincenzo Paternò 

Elgg · Since 2010

The core activity of Baier Haustechnik Elgg is the provision of services in the field of building technology, particularly in the areas of plumbing, heating, renovations and household appliances. The company offers installations, repairs and maintenance, and has a 24-hour emergency service for urgent cases.

Berchtold Kältetechnik GmbH 

Niederbipp · Since 2020

The core activity of Berchtold Kältetechnik GmbH is the planning, installation, maintenance and repair of climate and refrigeration technology solutions, including air conditioning, heat pumps, sanitary technology and equipment rental. The company also offers a 24-hour emergency service and repairs and maintains third-party equipment of all brands.

Frei + Gaugler, Nachfolger Heinz Gaugler 

Hochwald · Since 2013

The core activity of Frei + Gaugler is the planning and execution of heating and plumbing installations for single-family and multi-family homes, as well as for industry and agriculture, including minor repairs and complex work on new and renovation projects.

Haizmann Haustechnik GmbH 

Münchenstein · Since 1998

Haizmann Haustechnik GmbH provides planning, installation and maintenance services for heating, plumbing and construction management and acts as a general contractor. Services include repairs, project engineering and execution, a 24‑hour emergency service and the provision of mobile heating units.

Hayoz & Brulhart SA 

Marly · Since 1982

The core activity of Hayoz & Brulhart is the installation, maintenance and repair of sanitary facilities, heating systems and ventilation systems. The company also offers services in the field of energy efficiency and sustainability, including the planning and implementation of energy-efficient solutions for new buildings, renovations and conversions.

M. Jäggli Sanitär GmbH 

Müntschemier · Since 2021

The company's core activity is the provision of services in the field of sanitary technology, specifically: Regular descaling and cleaning of boilers; New installations of domestic technology, including drinking water, hot water and wastewater systems; Repair and cleaning of sanitary problems, such as clogged drains or dripping faucets. The company thus offers a comprehensive range of services for the maintenance, installation and repair of sanitary technology.

Olivadoti Sanitär GmbH 

Bözen · Since 2021

The company Olivadoti offers services in the field of sanitation and heating, including installation, maintenance, repair and servicing of heating systems, sanitary technology, heat pumps, boilers and water solutions. They also carry out complete bathroom renovations and offer individual solutions for sanitary and heating systems.

RS Sanitaire Sàrl 

Satigny · Since 2021

The core activity of RS Sanitaire Sàrl is the provision of sanitary services, including: * Repair and maintenance (dépannage) of sanitary facilities * Detection and repair of leaks * Unclogging (débouchage) of sewage pipes * Replacement (remplacement) of fittings and sanitary appliances * Installation, transformation and modification of gas systems * Installation, renovation and maintenance (entretien) of sanitary facilities in residential and commercial premises. The company thus offers a wide range of sanitary services to meet the needs of its customers in Geneva and its surroundings.

Sutterlüti AG 

Zurich · Since 1978

Sutterlüti AG provides consulting, planning and installation services for plumbing and heating systems. Its offerings include renovations, new builds and maintenance work, as well as water supply and drainage systems, gas and medical gas installations, compressed-air and industrial installations for residential, commercial and institutional projects.

Tapernoux SA 

Bernex · Since 1977

The core activity of Tapernoux S.A. consists of planning, implementing and maintaining sanitary, medical fluid and medical gas installations, including the design and construction of laboratory and industrial facilities, as well as carrying out maintenance and repairs in these areas.