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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,837 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSpecialized Construction ActivitiesLiebefeldAMS Air-Material- + Service AG
AMS Air-Material- + Service AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of AMS – Air Material & Service AG is control and regulation technology for ventilation and air conditioning systems, the sale and installation of split air conditioning systems and heat pumps, the planning and construction of refrigeration components for complete air conditioning systems, as well as the service and maintenance of ventilation and air conditioning systems.

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Offering

Products & services

Industry:Specialized Construction ActivitiesPlumbing & Building Services
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AMS Air-Material- + Service AG

✓ Offered6
Air conditioning
Air-conditioning systems, refrigeration systems and heat pumps for production halls, commercial buildings, offices and residential spaces; design, installation, maintenance, servicing and installation replacement.
Control and regulation
Control and regulation of ventilation, heating and refrigeration systems; electrical diagrams, control panel construction, commissioning and MSRL systems for HVAC applications.
Advisory, design and installation of air-conditioning and refrigeration systems
Advisory on system selection, design of new systems or integration into existing building services, installation of single, multi-split and industrial refrigeration systems.
Maintenance, servicing and repair of air-conditioning and refrigeration systems
Professional maintenance, servicing and repair of existing air-conditioning and refrigeration systems, including required test records and manufacturer-independent support.
Air-to-water heat pumps
Design and installation of energy-efficient air-to-water heat pumps for single and multi-family houses, tailored to usage behaviour and also as a replacement for existing heating systems.
Building automation and MSRL control systems
Control engineering for small to medium-sized and simple to complex ventilation, heating and refrigeration systems using Regin Controls, Schneider Electric and Lovato Electric.
Trust & reputation

ranQ Trust Score of AMS Air-Material- + Service AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

AMS Air-Material- + Service AG scores 73.6 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.77.424%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.52.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.88.08%
AMS Air-Material- + Service AG scores 89.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.70.07%
AMS Air-Material- + Service AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).85.022%
AMS Air-Material- + Service AG scores 28.6 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

AMS Air-Material- + Service AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.9 out of 5 stars from 7 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.9
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.97
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Könizstrasse 161
3097 Liebefeld
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 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.058.671
Founded
1990 · 36 years
Last commercial register change
July 2, 2026
Employees
11 to 20
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.100.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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