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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,947 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesZurichKoster AG Gebäudetechnik
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Verified· 3 sources

Koster AG Gebäudetechnik

Summary

About the company

Koster AG Gebäudetechnik provides building services covering heating, ventilation, air conditioning, refrigeration, sanitary systems and MSRL/building automation. The company carries out planning, installation, control‑cabinet production, commissioning, maintenance (including 24h service) and offers consulting, energy concepts and renewable‑energy installations.

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Offering

Products & services

Industry:Plumbing & Building Services
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✓ Offered9
Building services
Turnkey building services for heating, ventilation, air conditioning, MSRL and sanitary installations; planning, installation, upkeep, maintenance, fault rectification as well as renovation and optimization of existing systems.
24h Service
On-call service 24/7 for heating breakdowns, water damage and other faults; quick help, on-site service and telephone contact.
Building automation
Building automation for conversions and existing systems; energy optimization, control concepts, remote maintenance, remote control, commissioning, documentation, as well as creation of control cabinets and wiring diagrams.
Renewable energy
Planning and installation of heat pumps, photovoltaic systems as well as systems for extracting geothermal or solar energy; including energy concept and advice.
Sanitary installations
Advice, planning, implementation, repair and upkeep of sanitary installations for single-family homes, villas, residential developments as well as commercial and industrial buildings.
Maintenance contract
Maintenance contracts for all building services with heating, ventilation and sanitary installations; one contract and one contact person for ongoing upkeep.
Small installations
Building services for smaller properties with heating, ventilation, air conditioning, electrical and sanitary installations; new build, conversions, renovation, maintenance and repair.
Large systems
Planning, installation and support for complex large-scale systems for heating, ventilation, sanitary installations, MSRL, air conditioning and refrigeration.
Advisory and quotations
Consulting from site inspection and planning through to quotation; analysis, energy concepts and clear quotations for conversions, renovation and repairs.
Reviews

Aggregated rating

Aggregated rating
3.5
of 5

Aggregated from 55 reviews across all connected sources

Sources
GGoogle3.555
★TrustpilotSoon
PProvenExpertSoon

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Location

Hier entsteht die Karte
Juchstrasse 11
8048 Zurich
Opening hours
Mon
07:00 - 12:00, 13:00 - 16:30
Tue
07:00 - 12:00, 13:00 - 16:30
Wed
07:00 - 12:00, 13:00 - 16:30
Thu
07:00 - 12:00, 13:00 - 16:30
Fri
07:00 - 12:00, 13:00 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.926.916
Founded
1970 · 56 years
Last commercial register change
March 5, 2026
Employees
51 to 100

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