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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesEngineerThunDTL Zenuni AG
DTL Zenuni AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of DTL Zenuni AG is the planning, installation and maintenance of building technology systems, particularly in the areas of heating, sanitation and ventilation. The company offers comprehensive services for private and commercial buildings, from planning to installation and maintenance of heating, sanitation and ventilation systems.

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Service area

Offering

Products & services

Industry:Engineer
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4.3/5

DTL Zenuni AG

Plumber
✓ Offered4
Heating
Heating system planning and installation for residential, industrial and commercial buildings; heat pumps, solar energy, wood heating systems, district heating, gas and oil heating systems, maintenance and repairs.
Plumbing
Plumbing works for private and commercial properties; advice and planning, new builds and conversions, water, gas and compressed-air installations, water treatment, rainwater use, repairs and maintenance.
Ventilation
Ventilation and air-conditioning technology for private and commercial buildings; controlled residential and comfort ventilation, heat recovery, bathroom and kitchen ventilation, split systems, wine cellar cooling, maintenance and repairs.
Planning
Building services design and consulting for clients, architects and construction companies; solutions that are technically, economically and ecologically sound, SIA-oriented planning and project support.
Trust & reputation

ranQ Trust Score of DTL Zenuni AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of November 2026

DTL Zenuni AG scores 80.8 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.86.024%
  • 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.70.510%
  • 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.78.08%
DTL Zenuni AG scores 79.5 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.70.212%
  • 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%
DTL Zenuni AG scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
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).86.722%
DTL Zenuni AG scores 7.7 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 35.7.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

DTL Zenuni AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 15 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 15 reviews across all connected sources

Sources
GGoogle515
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Tempelstrasse 1
3608 Thun
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-260.639.448
Founded
2020 · 6 years
Last commercial register change
June 11, 2024
Employees
21 to 50

Active in 1 of 26 cantons

  • BEBern
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.
100.0
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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