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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentWaste disposalPfungenWaser Rohrunterhalt GmbH
Waser Rohrunterhalt GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Waser Rohrunterhalt GmbH provides services for wastewater pipes and sewers. Its work includes pipe and sewer cleaning, sewer rehabilitation, CCTV inspections and leak-tightness tests.

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Service area

Offering

Products & services

Industry:Waste disposal
✓ Offered
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4.2/5

Waser Rohrunterhalt GmbH

6
Sewer & pipe cleaning
Sewer and pipe cleaning for blockages, drainage problems and preventive maintenance; including high-pressure flushing, electromechanical cleaning, 24h emergency service and suction of pipes and channels.
Sewer rehabilitation & pipe rehabilitation
Trenchless sewer and pipe rehabilitation using Inliner and Kurzliner methods; on-site damage analysis, sealing of damaged lines and repair without extensive excavation.
Sewer CCTV inspection
Sewer inspection with a special camera for visual testing of sewer systems and sewer pipes; 360° recording, instant video images on site and support for assessing damage.
Emergency pipe blockage service
Immediate help for blocked pipes and urgent drainage problems in Winterthur, Zurich and Thurgau; 24-hour service every day of the year.
Pipe leak tightness testing
Testing of pipes, shafts and channels with water or air to locate leaks in the wastewater system and to assess the condition of the line.
Sewer cleaning for property management companies
Sewer cleaning, sewer rehabilitation and maintenance subscriptions for property management companies and owners; including service planning, special terms and 24h emergency service without surcharges.
Trust & reputation

ranQ Trust Score of Waser Rohrunterhalt GmbH: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of November 2026

Waser Rohrunterhalt GmbH scores 83.5 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.82.624%
  • 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.81.910%
  • 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%
Waser Rohrunterhalt GmbH scores 67.8 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.64.612%
  • 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%
Waser Rohrunterhalt 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%
Waser Rohrunterhalt GmbH scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Waser Rohrunterhalt GmbH reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.8 out of 5 stars from 24 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
4.8
of 5

Aggregated from 24 reviews across all connected sources

Sources
GGoogle4.824
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Brunistrasse 20
8422 Pfungen
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Limited Liability Company
UID
CHE-378.056.896
Founded
2021 · 5 years
Last commercial register change
May 23, 2025
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ZHPfungen
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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