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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint742,806 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringHorgenAltner AG
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Altner AG

Summary

About the company

The core activity of Altner AG is the planning, installation, maintenance and repair of heating systems, particularly those using renewable energy sources, as well as consulting and determining the best solution for buildings in terms of heating technology.

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Offering

Products & services

Industry:Technical Consulting & EngineeringPlumbing & Building Services
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Heating system planning
Planning of heating systems for new builds and conversions, renovations and replacements; selecting suitable systems and considering building and operating requirements.
Heating system installation
Installation of heating systems, including eco-friendly and cost-effective heating solutions; mounting air/water heat pumps, ground-source (borehole) heat pumps, wood-fired units and district heating systems.
Heating maintenance
Maintenance of heating systems and boilers as part of an all-round service, with qualified specialists and regular service visits.
Heating repair
Repair of heating systems and boilers in case of faults; 24-hour emergency service and standby duty outside regular working hours.
Reviews

Aggregated rating

Aggregated rating
4.8
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle4.88
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Seestrasse 260
8810 Horgen
Opening hours
Mon
07:00 - 12:00, 13:30 - 17:00
Tue
07:00 - 12:00, 13:30 - 17:00
Wed
07:00 - 12:00, 13:30 - 17:00
Thu
07:00 - 12:00, 13:30 - 17:00
Fri
07:00 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-109.350.607
Founded
2001 · 25 years
Last commercial register change
July 2, 2024
Employees
11 to 20

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