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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,194 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesWinterthurE3 HLK AG
E3 HLK AG Logo
Verified· 4 sources

E3 HLK AG

Summary

About the company

E3 HLK AG plans and installs heating, ventilation and refrigeration systems for building technology. The company also provides service, maintenance, upkeep and operational optimisation for energy systems.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered4
Heating
Heating systems for buildings, including energy central units, heat-and-power systems, heat pump systems and district heating systems; installation from the thermostat sensor to the industrial heating system.
Ventilation
Ventilation systems for office and administrative buildings, hotels and restaurants, fitness, cultural and leisure facilities as well as cleanroom installations; air treatment with heat recovery.
Refrigeration
Refrigeration technology for building services, in particular large-scale air conditioning and refrigeration plants; installation of systems that must work down to the last detail.
Service and Maintenance
Maintenance and upkeep of energy technology and systems; service for existing systems so that full performance is maintained.
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Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle56
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Press

Media

December 10, 2018Media
BKW übernimmt Ostschweizer E3 HLK AG
tagesanzeiger.ch

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Location

Zürcherstrasse 322
8406 Winterthur
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Branch
UID
CHE-137.306.853
Founded
2010 · 16 years
Last commercial register change
December 24, 2025
Employees
11 to 20

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