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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumberChamwengerenergie GmbH
wengerenergie GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

wengerenergie GmbH provides solutions for treating and maintaining water quality in heating and cooling systems. Its services include water analysis, fine filtration, vacuum degassing, pressure maintenance, and ongoing system care.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Plumber
✓ Offered9
Plant and system water treatment
Plant and system water treatment for heating, cooling and process plants; water analysis, treatment, adjustment of pH value and conductivity, as well as ongoing monitoring.
Water analysis and system survey
Water analysis of fill water and system water, determining contamination, pH value and conductivity, including lab evaluation and a list of measures.
Treatment of system water
Temporary or stationary cleaning with fine filter system, adjustment of pH value and conductivity, and removal of dirt, sludge and iron.
Long-term assurance of water quality
Fixed installation of vacuum deaerators, fine filter systems, pressure maintenance and top-up stations to permanently stabilize water quality in heating and cooling plants.
Maintenance and follow-up support
Annual inspection of system water, maintenance of the equipment and support after commissioning, including documentation and assistance with problems.
Fine filter system
Fine filter system for removing dirt and sludge from heating circuit water; as a temporary or stationary solution with side-stream/bypass operation.
Vacuum deaerator
Fully automatic vacuum deaerator for heating, cooling and process plants as well as ground-source heat pumps with remote access, automatic top-up function and deaeration.
Pressure maintenance
Pressure maintenance with membrane expansion vessels and pressure holding systems for stable control of system pressure in heating and cooling systems.
Fill and top-up system
Fill and top-up systems for demineralizing and stabilizing heating water; controlled top-ups for consistently good water quality.
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4.0/5

wengerenergie GmbH

Trust & reputation

ranQ Trust Score of wengerenergie GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of November 2026

wengerenergie GmbH scores 62.1 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.75.024%
  • 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.40.910%
  • 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.50.08%
wengerenergie GmbH scores 82.0 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.97.712%
  • 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%
wengerenergie GmbH 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%
wengerenergie GmbH scores 2.9 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 35.2.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

wengerenergie GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 4 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 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Alte Steinhauserstrasse 19
6330 Cham
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-384.270.564
Founded
2012 · 14 years
Last commercial register change
February 28, 2023
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ZGCham
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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