Plumbing & Building Services

A. Haller AG 

Rupperswil · Since 1973

The core activity of A. Haller AG is the provision of services in the field of building technology, particularly in the areas of sanitary and heating work. This includes consulting, planning, installation, renovation, service, repair and maintenance work on building technology systems, including sanitary installations, heating installations, heat pumps, underfloor heating, radiators and other related services.

Trachsel Haustechnik GmbH 

Ettingen · Since 2017

Trachsel Haustechnik GmbH provides sanitary and water-technology services, including sanitary installations, repair and maintenance, and boiler descaling and replacement. The company also offers water-filter and water-softening system installation and service, flushing of drinking-water pipes, and heating work such as underfloor/radiator flushing and heating renovation/heat-pump services.

AHS Haustechnik GmbH 

Spreitenbach · Since 2018

The core activity of AHS Haustechnik GmbH encompasses the planning, installation, repair, renewal and maintenance of heating systems, sprinkler fire protection systems and sanitary installations. A particular focus is placed on sustainable solutions using renewable energies and environmentally friendly technologies.

AJ Technik GmbH 

Gerlafingen · Since 2022

The core activity of AJ Technik GmbH is the installation, maintenance, repair and assembly of refrigeration, air conditioning, ventilation and sanitary systems, including air conditioning systems, refrigerators, cooling cells, ventilation technology, bathrooms, wet cells and sanitary fittings.

AJ Therm Sàrl 

Ecublens Vd · Since 2024

AJ Therm Sàrl is a heating and sanitary company providing installation, maintenance, repairs and a 7‑day emergency service. Services include heating system installation and replacement, heat pump and photovoltaic installations, plumbing work and energy renovation solutions for private and commercial clients.

AK Bautechnik GmbH 

Kerzers · Since 2016

The core activity of AK Bautechnik GmbH encompasses various services in the field of building technology, particularly: Sanitary work (total renovations, bathroom conversions), heating systems (heat pumps, air-water heat pumps, earth probes, pellet heating systems), ventilation systems (room comfort ventilation, fans, kitchen exhausts), painting and plastering work (interior and exterior work, wallpapering, exterior thermal insulation, lightweight walls, ceilings), and renovations and new constructions of buildings. The company offers a comprehensive range of services in the field of building technology and positions itself as a full-service provider for all aspects of building equipment and maintenance.

AK SWISS TEC Sàrl 

Veyrier · Since 2022

The core activity of AK Swiss Tec is the installation, renovation, transformation and repair of sanitary facilities, including: installation and repair of sanitary fixtures, drainage and sewerage, repair of heating and hot water systems, maintenance and repair of sanitary facilities, detection and repair of leaks, installation and maintenance of water and gas systems, and repair and maintenance of sanitary appliances and fittings. The company offers these services in the Geneva region and the Côte, and has over 20 years of experience in this field.

Alain WASSMER 

Pomy · Since 2001

The core activity of Alain Wassmer is the installation, maintenance and repair of heating systems, sanitary facilities and burners, including the installation of solar systems. The company also offers services for the renovation and refurbishment of bathrooms.

Albiser GmbH Planung Gebäudetechnik & Bauleitung 

Obfelden · Since 2022

Albiser GmbH Planung Gebäudetechnik & Bauleitung provides planning and construction management services for building services, producing 2D and 3D designs for heating, ventilation and sanitary systems. The company coordinates all trades, assists with administrative and permit-related steps, and offers private inspections of heating installations.

A. Lenz AG 

Therwil · Since 1968

A. Lenz AG is a plumbing and sheet-metal company that provides sanitary, heating and ventilation services, including repairs, maintenance and installations. Services listed on the website include boiler and solar installations, bathroom and kitchen fittings, heat pump and underfloor heating systems, and water treatment and filter services.

Alfred M. Riederer AG 

St. Moritz · Since 2008

Alfred M. Riederer AG provides sanitary installation and heating services and offers customer service, including a 24‑hour service.

Allemann Gebäudetechnik AG 

Lenk Im Simmental · Since 2013

The core activity of Allemann Gebäudetechnik AG encompasses the planning, execution and maintenance of heating and plumbing installations as well as sheet metal and concrete processing work for new buildings, conversions, renovations and repair work.

Alltech Installationen AG 

Muttenz · Since 1997

Alltech Installationen AG is an installation company that designs, installs and maintains sanitary, heating, refrigeration and industrial systems. Its services include energy systems (e.g. heat pumps, solar/photovoltaics), boiler service, prefabrication and a 24‑hour service, and it takes on project responsibility from small renovations to large-scale projects. The company operates according to SN EN ISO 9001 and is a recognized training provider.

Alltech Installationen AG 

Arlesheim · Since 2012

Alltech Installationen AG provides services for sanitary installations, heating, industrial and refrigeration systems, energy systems and boiler service. The company assumes overall responsibility for projects from small refurbishments to large construction assignments and offers a 24-hour service as well as maintenance and service work.

Alpen Sanitär AG 

Grosswangen · Since 2011

The core activity of Alpen Sanitär AG is the planning, installation, maintenance and repair of sanitary, heating and ventilation systems for private and commercial spaces.

Alpes sanitaires Sàrl 

Since 2022

Alpes sanitaires Sàrl is a company carrying out sanitary plumbing work. Its services include installation and replacement of sanitary fixtures, pipework, leak repairs, drain unclogging and bathroom renovations, and it provides a 24/7 emergency call-out service for residential, commercial and industrial installations.

AlpinTherm AG 

Spiez · Since 1990

The core activity of AlpinTherm AG is the provision of services in the field of building technology, particularly in heat pump, refrigeration and air conditioning technology. This includes: maintenance and inspection of heat pumps and other systems; repair service for malfunctions and defects; customer support and consulting for questions and problems; commissioning and optimization of heat pumps and other systems; coordination and professional commissioning of heat pumps. The company offers these services throughout Switzerland and positions itself as an expert in heat pump service, maintenance and repairs.

ALPTEQ Swiss SA 

Grand-Lancy · Since 2023

ALPTEQ Swiss SA provides building-technical services including design, installation and maintenance of sanitary, heating, ventilation and air-conditioning systems, and offers renewable energy solutions such as solar installations. Its services also cover floor coverings, painting work, building automation and energy renovation projects.

AlpThermic Sàrl 

Le Châble Vs · Since 2023

The core activity of AlpThermic Sàrl is the planning, implementation and management of projects in the field of heating, particularly: district heating, heating, ventilation and sanitary engineering. The company offers specific services such as: creation of thermal files for public tenders, creation of Minergie and Minergie-P files, studies and monitoring of projects in the field of air conditioning systems (CVS), renovation of heating systems, project management for industrial heating systems and CAD projects. AlpThermic positions itself as an expert in innovative, environmentally friendly and sustainable heating solutions and offers its customers a reliable and tailored service.

ALSE Wärmetechnik Selimi 

Alchenflüh · Since 2023