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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint742,806 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesSchlierenHans Wälchli
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Verified· 3 sources

Hans Wälchli

Summary

About the company

Hans Wälchli designs, installs and maintains ventilation, air-conditioning and refrigeration systems, and provides engineering, monitoring and maintenance services.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered6
Ventilation systems
Design, installation and maintenance of ventilation systems for residential buildings, mixed-use residential and commercial properties, and specialist installations in swimming pools, restaurants/kitchens and industry.
Air-conditioning systems
Planning and implementation of air-conditioning units, recirculating cooling systems as well as partial and full air-conditioning systems for office buildings, laboratories, museums, data centres and industry.
Refrigeration systems
Planning and implementation of refrigeration systems, from standard chilled-water units to large-scale systems with freecooling and waste-heat recovery.
Engineering
Design of ventilation, air-conditioning and refrigeration systems, project development, project management, energy concepts, operating optimization, client advisory and expert assessments.
Maintenance and service
Fast maintenance, service and upkeep for installed systems; fault rectification and support of the system history in the CRM.
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Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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Location

Schulstrasse 4
8952 Schlieren
Opening hours
Mon
07:30 - 17:00
Tue
07:30 - 17:00
Wed
07:30 - 17:00
Thu
07:30 - 17:00
Fri
07:30 - 15:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-107.150.575
Founded
1972 · 54 years
Last commercial register change
April 14, 2025
Employees
1 to 10

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