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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,563 companies indexed · Last updated: today
DirectoryIndustryMechanical Engineering IndustryGümligenWalter Wettstein AG, Spezialunternehmung für Kältetechnik
Walter Wettstein AG, Spezialunternehmung für Kältetechnik Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Walter Wettstein AG, Spezialunternehmung für Kältetechnik designs, installs and operates refrigeration and heat pump systems, including industrial chillers, large heat pumps, artificial ice rinks and propane-based installations. Services include engineering, automation, operational optimisation, maintenance, training and a 24-hour on-call service.

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Products & services

Industry:Mechanical Engineering Industry
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4.3/5

Walter Wettstein AG, Spezialunternehmung für Kältetechnik

✓ Offered
10
Industrial refrigeration
Refrigeration systems for industry, including cooling and deep-freeze plants, deep-freeze storage, prefabricated units, process cooling and ice-water systems.
Heat pumps
Heat pumps with natural refrigerants, in particular NH3 heat pumps, waste-heat stages from refrigeration systems and heating solutions using seawater.
Artificial ice rinks
Planning, implementation and refurbishment of ice sports facilities, including new builds, rink systems and refurbishment concepts.
Propane systems
Individually designed, externally installed refrigeration and heating systems using propane, including Wettstein-Pro-Cool and Wettstein-Pro-Heat.
Engineering
End-to-end service packages for refrigeration systems, heat pumps and artificial ice rinks, from feasibility study and detailed design to commissioning and lifetime maintenance.
Maintenance
Maintenance and plant coaching for refrigeration systems and heat pumps, including inspections, vibration analyses, service work, measurements and spare-parts storage.
Automation
Operationally reliable and energy-optimised automation solutions for refrigeration and heat pump systems, including Wettronic compressor control.
Operational optimisation
Remote maintenance and plant portal for operational optimisation, fault detection, diagnosis and data analysis, as well as condition analyses of systems.
24-hour on-call service
24/7 service for breakdowns at all times, 365 days a year, with immediate technical support in emergencies.
Training
In-house training for operators, planners and maintenance personnel, including a general refrigeration course, an ice master course and company courses.
Trust & reputation

ranQ Trust Score of Walter Wettstein AG, Spezialunternehmung für Kältetechnik: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Walter Wettstein AG, Spezialunternehmung für Kältetechnik scores 73.1 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.70.724%
  • 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.67.110%
  • 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%
Walter Wettstein AG, Spezialunternehmung für Kältetechnik scores 92.3 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.82.07%
Walter Wettstein AG, Spezialunternehmung für Kältetechnik 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%
Walter Wettstein AG, Spezialunternehmung für Kältetechnik scores 65.7 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 35.65.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Walter Wettstein AG, Spezialunternehmung für Kältetechnik reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.5 out of 5 stars from 13 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
4.5
of 5

Aggregated from 13 reviews across all connected sources

Sources
GGoogle4.513
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Mattenstrasse 11
3073 Gümligen
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.751.574
Founded
1953 · 73 years
Last commercial register change
March 6, 2026
Employees
21 to 50
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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