Heating installer in
Aarau

7 companies in Heating installer based in Aarau — name and year of registration from the commercial register. The list below shows them all.

Companies

All 7 companies in Aarau

Boschetti AG Logo

Boschetti AG

Since 1976 · 21–50 empl.4.1(32)

Boschetti AG plans and installs building services systems in plumbing, heating, ventilation and climate control. Its services include consulting, repairs, maintenance and servicing, from small jobs to large projects.

Air conditioningSanitary, heating and ventilation installationsPlanning & consultingPlumbing
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #1
AW Haustechnik GmbH Logo

AW Haustechnik GmbH

Since 2020 · 1–10 empl.5.0(15)

AW Haustechnik GmbH plans, installs and maintains heating, plumbing and ventilation systems for new builds and renovations. The company also provides repairs and servicing for building services equipment.

Air conditioningHeating systemsPlumbing installationsVentilation technology
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #2
Locher AG Haustechnik Logo

Locher AG Haustechnik

Since 1992 · 1–10 empl.4.6(19)

Locher AG Haustechnik plans and installs sanitary and heating systems and carries out bathroom and kitchen projects. Its services include plumbing installations, heating system upgrades, water treatment and execution planning.

Heating installerSanitary InstallationHeating InstallationPlanning and Consulting
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #3
RUNER SOLAR GMBH Logo

RUNER SOLAR GMBH

Since 2020 · 1–10 empl.5.0(16)

RUNER SOLAR GMBH plans and installs photovoltaic systems with battery storage, heat pumps and charging stations for private and business customers. Its services also include electrical installations, large-scale commercial PV systems and energy consulting.

ElectricianSolar systems & battery storageHeat pumpsLarge-scale systems & commercial storage
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #4
Hälg & Co. AG, Zweigniederlassung Aarau Logo

Hälg & Co. AG, Zweigniederlassung Aarau

Since 2009 · 101–500 empl.

Hälg & Co. AG, Zweigniederlassung Aarau provides building-services engineering and maintenance. Its work includes consulting, planning, installation, servicing and renovation of heating, cooling, ventilation, air-conditioning and plumbing systems.

Air conditioningPlant engineering / serviceHeating/coolingVentilation/air conditioning
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #5
Steiner HTK GmbH Logo

Steiner HTK GmbH

Since 2017 · 1–10 empl.5.0(1)

Steiner HTK GmbH provides consulting, planning and installation services for heating and plumbing systems. Its work includes heat pumps, district heating, wood and pellet, oil and gas heating systems, as well as plumbing installations, bathroom renovations, maintenance and repairs.

Heating installerConsulting and planning for heating systemsSanitary installationsRenovation and bathroom refurbishment
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #6
AA

AEK AG

Since 2020 · 1–10 empl.3.2(9)

Electrician
ranQ Trust Score 3.6 out of 5.0, rated Solid, Rank #7

Heating installer in Aarau

7Heating installerCommercial register (Zefix) · as of November 15, 2026
2017Median year of registrationCommercial register (Zefix) · as of November 15, 2026
394in the Canton of AargauCommercial register (Zefix) · as of November 15, 2026
5,147in SwitzerlandCommercial register (Zefix) · as of November 15, 2026
Locations

Heating installer in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of November 15, 2026