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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsFüllinsdorfDelta T Kältetechnik GmbH
Delta T Kältetechnik GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Delta-T is the planning, installation and maintenance of air conditioning and refrigeration systems, including the provision of products and services in the field of refrigeration technology, such as chilled water sets, air-cooled chilled water sets, water-cooled chilled water sets, refrigeration machines, liquid coolers and heat pumps. The company offers its services to both private and commercial customers and focuses on providing solutions for room climate and cooling needs.

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Offering

Products & services

Industry:Specialized Construction Installations
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4.2/5

Delta T Kältetechnik GmbH

✓ Offered7
Engineering planning
Planning of air-conditioning and refrigeration systems, tailored to commercial, industrial and residential applications as well as to individual project requirements.
Refrigeration systems for commercial and industrial use
Refrigeration systems for gastronomy, supermarkets, butcher’s shops, bakeries and industrial applications; including commercial refrigeration technology, industrial refrigeration systems and chilled-water systems.
Air-conditioning systems
Air-conditioning solutions for buildings and sections, including room climate and chilled-water systems for different performance requirements.
Heat pumps
Heat pumps for residential and commercial projects, including air-to-air, air-to-water and brine-to-water heat pumps.
Chilled-water rental
Temporary cooling supply from 2 kW, including rentable chilled-water units for short-term or bridging applications.
Service and maintenance of refrigeration and air-conditioning systems
Service for existing systems, maintenance of older refrigeration and air-conditioning systems, and support with problems in home installations.
Installation of refrigeration and air-conditioning systems
Installation work for commercial, industrial and residential refrigeration, air-conditioning and heat-pump systems as part of projects.
Trust & reputation

ranQ Trust Score of Delta T Kältetechnik GmbH: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

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Data basis 96% · As of October 2026

Delta T Kältetechnik GmbH scores 80.9 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.82.024%
  • 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.95.08%
Delta T Kältetechnik GmbH scores 72.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.75.012%
  • 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.55.07%
Delta T Kältetechnik GmbH 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%
Delta T Kältetechnik GmbH scores 12.9 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.12.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Delta T Kältetechnik GmbH reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.9 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
4.9
of 5

Aggregated from 13 reviews across all connected sources

Sources
GGoogle4.913
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Giebenacherstrasse 23
4414 Füllinsdorf
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
Limited Liability Company
UID
CHE-491.302.661
Founded
2019 · 7 years
Last commercial register change
November 11, 2019
Employees
1 to 10
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.
88.0
6%
  • 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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