Building services engineer in the
Canton of Grisons

Collenberg Energietechnik AG

Since 2017 · 1–10 empl.

Collenberg Energietechnik AG provides engineering and planning services for building systems. Its work includes planning heating, ventilation and air-conditioning installations, energy consulting, technical coordination and construction management.

Anex Ingenieure AG

Since 2019 · 51–100 empl.

Anex Ingenieure AG is a consulting and engineering firm for building services. It develops energy and utilities concepts for processes, buildings and sites, and provides services including building services and automation planning, client consulting, quality assurance and energy planning. Its core sectors include industry, energy supply, hospital construction and the renovation of heritage buildings.

HEFTI. HESS. MARTIGNONI. St. Gallen AG, Niederlassung Chur

Since 2023 · 101–500 empl.

HEFTI. HESS. MARTIGNONI. St. Gallen AG, Niederlassung Chur is a branch of the HHM engineering group, which plans building services systems. Its services include integrated building-services planning, heating, ventilation, air conditioning and sanitary engineering, and electrical engineering for buildings and infrastructure, as well as building automation, energy supply, photovoltaics and fire protection.

CAVIEZEL klima GmbH

Since 2017 · 1–10 empl.

CAVIEZEL klima GmbH provides planning and consultancy for ventilation and air-conditioning systems, as well as detailed and execution planning and specialist construction supervision. Its services also include coordination of building-services trades and creating digital building models from 3D scans of existing buildings and installations.

Weibel Ing. AG

Since 2020 · 1–10 empl.

Weibel Ing. AG provides building services engineering in heating, ventilation, air conditioning and plumbing (HVAC). Its services include consulting, system concept development and planning, as well as energy assessments for new construction and renovation projects.

SCHERLER AG

Since 2007 · 101–500 empl.·4.7(3)

SCHERLER AG is an engineering company specialising in building technology and electrical engineering. Its services include planning and coordinating electrical systems, building installations, ICT, automation, safety systems, lighting and energy generation, as well as supporting construction projects from concept through implementation.

HOS geo-engineering GmbH

Since 2019 · 1–10 empl.

HOS geo-engineering GmbH plans and builds geothermal heating systems and provides geothermal and heat-pump solutions. Its services include drilling, measurements, heat-pump supply and assistance with troubleshooting.

Stolle Industries Swiss AG

Since 2023 · 1–10 empl.

Stolle Industries Swiss AG plans and implements building automation and building services, including heating, ventilation and air-conditioning systems. Its services also include energy consulting, integration planning, software development, validation and business consulting focused on intelligent building technology.

RMB Engineering AG - Niederlassung Chur

Since 2024 · 11–20 empl.

RMB Engineering AG - Niederlassung Chur is an engineering and planning firm specialising in building services and energy systems. Its services include the planning of heating, ventilation, air conditioning, refrigeration, plumbing and electrical systems, as well as energy planning, building automation and facility management.

HT-Plan Haustechnik-Planungs AG

Since 1989 · 1–10 empl.·4.3(6)

HT-Plan Haustechnik-Planungs AG plans building services systems for heating, ventilation and plumbing. Its services include energy-efficiency and renewable-energy advice, tendering and site supervision for new buildings and renovation projects.

EliteBuildingArchiTec Swiss AG

Since 2023 · 11–20 empl.

EliteBuildingArchiTec Swiss AG provides engineering services for building services and building automation. Its activities include consulting, planning, construction management and development, as well as planning for building automation, building management and process automation.

Camathias Planung AG

Since 2022 · 1–10 empl.

Camathias Planung AG provides planning and consulting for building services, including heating, ventilation, cooling and air-conditioning, and sanitary systems. Its services also cover photovoltaic and solar installations, technical coordination of building trades, and energy consulting.

Groll Patrick

Since 2014 · 1–10 empl.·4.9(7)

EZ Planung AG

Since 2013 · 1–10 empl.·5.0(2)

EZ Planung AG is a planning firm for energy and building services engineering. It plans new buildings, conversions and building-services renovations, and provides energy consulting and assessments of existing building systems.

czwei GmbH, Partner für Klimatechnik

Since 2003 · 11–20 empl.·5.0(1)

czwei GmbH, Partner für Klimatechnik plans concepts and system solutions for ventilation, air-conditioning and refrigeration systems in hospitals, industrial facilities and commercial buildings. Its services include technical calculations and plans, coordination with other trades, and oversight of system implementation and commissioning.

Sulser Heizung-Sanitärtechnik GmbH

Since 2011 · 1–10 empl.·3.4(10)

Sulser Heizung-Sanitärtechnik GmbH plans, installs, maintains and repairs heating, plumbing and ventilation systems for residential and commercial buildings. It also provides advice and technical planning for building-services projects.

czwei GmbH

Since 2016 · 11–20 empl.·5.0(1)

czwei GmbH plans ventilation, air-conditioning and refrigeration systems, as well as building-services solutions for hospitals, industry and commercial buildings. Its services include concepts and technical calculations, planning documents, coordination and supervision of implementation, and assessments of existing systems, including those for hygienically critical environments and cleanrooms.

Lorenz Lehner AG

Since 2011 · 1–10 empl.·5.0(3)

The core activity of engatech AG is building technology, particularly sanitary and heating technology, as well as planning and installation of bathrooms and air conditioning systems. The company also offers service activities, such as maintenance and repair, and is involved in energy consulting.

Gini Planung AG

Since 2023 · 11–20 empl.·4.8(4)

Gini Planung AG is a building services and energy-efficiency planning firm. It plans heating, ventilation and plumbing systems for new buildings, renovations and refurbishments, and provides energy consultancy, studies and building-services coordination.

Giovanoli Gebäudetechnik GmbH

Since 2014 · 1–10 empl.·5.0(1)

Giovanoli Gebäudetechnik GmbH is an engineering consultancy that plans heating, ventilation, air-conditioning and plumbing systems. Its services also include dynamic building simulations, energy and MINERGIE certifications, technical coordination and Revit training.

hesaplan ag

Since 2004 · 1–10 empl.·3.5(2)

hesaplan ag is an independent building services engineering firm. It plans plumbing, heating, ventilation and air-conditioning systems and provides energy consultancy for construction and renovation projects.

Energy Group AG Zweigniederlassung Chur

Since 2025 · 21–50 empl.

Energy Group AG Zweigniederlassung Chur is an interdisciplinary engineering company specialising in energy and building services. It plans and optimises building automation, energy strategies and energy infrastructure, and supports projects from planning through to operation.

Vinzens Energietechnik GmbH

Since 2024 · 1–10 empl.·4.2(5)

Vinzens Energietechnik GmbH provides consulting and planning for building services, including heating, cooling, plumbing, ventilation and air conditioning. Its services also include site supervision, coordination, energy optimisation, and support with construction and subsidy applications.

Bündner Energietechnik GmbH

Since 2025 · 1–10 empl.

Bündner Energietechnik GmbH plans and installs heating systems, ventilation systems and sanitary technology for new builds and renovations. Its services also include energy consulting, maintenance and servicing.

Rieger Energietechnik AG

Since 2026 · 1–10 empl.

Rieger Energietechnik AG provides engineering, planning and project support for energy infrastructure and building technology. Its services include district heating planning, pipe stress analysis, heating load calculations, and the planning of heat pumps, photovoltaic systems and energy storage.

ENEG GmbH

Since 2026 · 1–10 empl.

ENEG GmbH is an independent engineering consultancy specializing in building services. It provides consulting, design and project support for heating, ventilation, air-conditioning, cooling, plumbing and sprinkler systems, including support during operation.

PAGAenergie AG

Since 1989 · 1–10 empl.

PAGAenergie AG is an independent engineering consultancy for building services and fire protection. It plans and advises on heating, ventilation, air conditioning, refrigeration and plumbing systems, energy supply and efficiency, and conducts thermal building simulations.

ENERTEL SAGL

Since 1996 · 1–10 empl.

ENERTEL SAGL provides consulting, planning and technical services in automation, energy, building and information technology. Its work includes building and tunnel automation concepts, energy cost management, sustainability reporting and communication networks.

Lenova energia GmbH

Since 2014 · 11–20 empl.

Lenova energia GmbH provides planning and consulting for building services and energy systems. Its services include heating and comfort ventilation systems, sanitary installations, and energy advice on consumption, savings potential, and renewable energy.

Meisser Haustechnik Davos GmbH

Since 2018 · 1–10 empl.

Meisser Haustechnik Davos GmbH plans heating and sanitary systems. Its services include consultancy, preliminary studies, project planning, tendering, execution documents, construction supervision, and the management and optimization of systems.

CRT Sterile Solutions SA

Since 2018 · 1–10 empl.

CRT Sterile Solutions SA designs, builds and validates clean rooms and other controlled-contamination environments. Its services also include consulting, commissioning and maintenance, as well as the design and installation of related systems and process equipment for sectors such as pharmaceuticals, chemicals, food, electronics, healthcare and research.

Büro M GmbH

Since 2022 · 1–10 empl.

Büro M GmbH is an independent building-services planning office specialising in heating, ventilation and plumbing. Its services range from strategic planning and design to tendering, implementation and specialist site supervision, for projects including residential, public, hotel, industrial and commercial buildings.

HTB Willi

Since 2025 · 1–10 empl.

HTB Willi provides consulting for building-services projects, including the analysis and optimisation of existing systems and support during project implementation. Its services also include coordinating tradespeople, quality checks, and maintenance, repair and service work on heating systems.

Wurzel3 GmbH

Since 2025 · 1–10 empl.

Wurzel3 GmbH is a planning office for electrical engineering and building technology. Its services include electrical concepts and smart systems, support for photovoltaic and e-mobility projects, and guidance for construction projects from strategic planning through to operation.

IBG Engineering AG

Since 1974 · 1–10 empl.

Ingenieurbüro Kleinstein

Since 1992 · 1–10 empl.

Ch. Tung, Tecnica da confort, S-chodamaints/sanitari

Since 1997 · 1–10 empl.

Bulach Jürg HTP

Since 1998 · 1–10 empl.