Heating installer in
Frauenfeld

Kelvin - Kälte AG

Since 2007 · 11–20 empl.·4.7(23)

Kelvin - Kälte AG designs, installs and maintains commercial refrigeration systems, including cold and freezer rooms. Its services also include air conditioning and dehumidification, heat pumps, and repair and maintenance of refrigeration, climate-control and heat-pump equipment.

Häfelin AG

Since 2013 · 21–50 empl.·4.5(31)

Häfelin AG plans and installs heating and plumbing systems for residential, commercial and industrial buildings. Its services include different heating systems, bathroom renovations, water-softening systems, and plumbing maintenance and repairs.

Schütz Gebäudetechnik AG

Since 2017 · 11–20 empl.·5.0(17)

Schütz Gebäudetechnik AG plans and designs heating systems and carries out their installation, servicing and maintenance. It also provides system advice and planning services for heating systems and controlled residential ventilation.

Schäfli & Dieterich AG

Since 2016 · 1–10 empl.·4.5(30)

Schäfli & Dieterich AG plans and installs building-services systems for plumbing, heating and energy. Its services include bathroom and heating renovations, energy consulting, sustainable energy systems, and maintenance and repair.

Bosshard AG

Since 1985 · 1–10 empl.·4.8(17)

Bosshard AG provides plumbing and heating services, including renovations and new installations, as well as consultation, planning, installation and repairs. Its heating solutions include oil and gas systems, heat pumps, solar thermal systems and photovoltaics.

Hans Keller Energietechnik AG

Since 2000 · 11–20 empl.

Hans Keller Energietechnik AG provides heating, plumbing, ventilation and energy-system services. Its activities include planning, installation, maintenance, repairs and modernisation of systems, as well as energy consultations.

M. Rellstab GmbH

Since 2002 · 1–10 empl.

M. Rellstab GmbH plans and installs plumbing and heating systems for residential developments, industrial and public buildings, and single-family homes. Its services include project advice and planning, installation, and bathroom renovations.

Dünki Wärmetechnik GmbH

Since 2014 · 1–10 empl.

Dünki Wärmetechnik GmbH carries out heating system installations and repairs of various kinds. The company is to be integrated into Schäfli + Dieterich AG on 1 July 2026.

Gricu AG

Since 2020 · 1–10 empl.

Gricu AG plans, implements and operates building technology systems for new construction, conversions and renovations. Its services cover heating, ventilation, air conditioning, refrigeration and plumbing, as well as technical facility management, including system maintenance and optimisation.

TeWaTec GmbH

Since 2021 · 11–20 empl.

TeWaTec GmbH is a general contractor specialising in building services and comprehensive renovations. Its services include planning and installing plumbing, heating, ventilation and cooling systems, as well as managing new-build, conversion and renovation projects through construction supervision and coordination.

Urs Liechti GmbH

Since 1998 · 1–10 empl.·3.9(7)

Urs Liechti GmbH is a heating and plumbing contractor. It installs, maintains and repairs heating and plumbing systems, services oil and gas-fired equipment, and also repairs household appliances and installs solar systems.

MB Haustechnik GmbH

Since 2021 · 1–10 empl.

MB Haustechnik GmbH plans and installs plumbing systems and heating systems for new builds and renovations. Its services also include fire protection, pipe insulation, maintenance and repair work.