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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentWaste Management IndustryZurichProkanal GmbH
Prokanal GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Prokanal GmbH provides cleaning, maintenance and rehabilitation services for sewers, drains and wastewater pipes. Its services include sewer cleaning, high-pressure flushing, mechanical clearing, CCTV (Kanal‑TV) inspection, shaft emptying, sewer rehabilitation and maintenance/contract services.

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Products & services

Industry:Waste Management Industry
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4.4/5

Prokanal GmbH

7
Sewer Cleaning
Sewer cleaning with mechanical and hydromechanical cleaning, high-pressure flushing, milling and drilling; for blocked wastewater pipes, building main drains, deposits and root intrusions.
Sewer TV Inspection
Sewer TV inspection to assess drain lines and channels, to locate damage, blockages and root intrusions, as well as for documentation and follow-up checks.
24h Emergency Service
24-hour emergency service for blocked or overflowing drains, toilets, kitchen waste outlets, urinals, floor drains, manholes and rainwater discharge from roofs.
Manhole Emptying
Manhole emptying for manholes and similar collection points in the piping and disposal sector; listed as a separate service in the overview.
Maintenance
Regular maintenance and service subscriptions for recurring cleaning and inspection work on house drains, vertical stacks, soakaway drains and terrace drains.
Gutter Cleaning
Gutter cleaning as a recurring cleaning service for building drainage systems.
Sewer Rehabilitation
Sewer rehabilitation with targeted repairs based on the inspection, including trenchless pipe lining and pipe renovation with hose liners.
Trust & reputation

ranQ Trust Score of Prokanal GmbH: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

Prokanal GmbH scores 90.4 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.93.924%
  • 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.98.510%
  • 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.70.08%
Prokanal GmbH scores 72.3 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.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%
Prokanal 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%
Prokanal GmbH scores 80.0 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 35.80.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Prokanal GmbH reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 47 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
5
of 5

Aggregated from 47 reviews across all connected sources

Sources
GGoogle547
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Hohlstrasse 192
8004 Zurich
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-271.046.554
Founded
2019 · 7 years
Last commercial register change
November 18, 2024
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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