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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentWaste Management IndustryChamFretz Kanal-Service AG
Fretz Kanal-Service AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Fretz Kanal-Service AG is the provision of services in the field of sewer maintenance, cleaning, rehabilitation and inspection, including street and surface cleaning. This includes specific services such as drain and pipe cleaning, suction work and shaft recycling, sewer TV and tightness testing, as well as shaft rehabilitation.

AI-generated
Offering

Products & services

Industry:Waste Management Industry
✓ Offered7
Sewer cleaning
Sewer cleaning of pipes and drains with deposits, encrustations or roots grown in; cleaning from 150 to 2000 mm, and for stubborn deposits with high-performance cutting mills.
Drain and pipe cleaning
Drain and pipe cleaning for blockages in kitchens, bathrooms and WC; cleaning and emptying of foul-water, seepage and rainwater lines as well as grease separators and pump shafts.
Suction work and shaft recycling
Vacuum suction work on sludge interceptors, oil and grease separators and inlet shafts; suctioning material from manhole extraction units, with recycling of the suctioned material and a water-recycling system.
Sewer rehabilitation
Sewer rehabilitation with partial and complete repairs; locating damaged and leaky sections, rehabilitation without extensive excavation, use of robotic technology and hose liners.
Shaft rehabilitation
Shaft rehabilitation for round and square shafts, drainage and access manholes, as well as separators and collectors; repair of cracks, holes, defective couplings and connections.
CCTV sewer inspection and leak testing
CCTV sewer inspection for locating damage and monitoring condition, as well as leak testing of pipes, tanks, basins, shafts and building installations; testing with air or water, digitally documented.
Road and area cleaning
Cleaning of heavily contaminated road sections and squares, public or private; wet and dry cleaning with special vehicles, including removal of debris, oil traces and dirt.
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4.1/5

Fretz Kanal-Service AG

Trust & reputation

ranQ Trust Score of Fretz Kanal-Service AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

Fretz Kanal-Service AG scores 56.8 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.73.124%
  • 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.35.310%
  • 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.35.08%
Fretz Kanal-Service AG scores 95.9 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.100.012%
  • 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.90.07%
Fretz Kanal-Service 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%
Fretz Kanal-Service AG scores 52.2 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 35.94.34%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Fretz Kanal-Service AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 customer reviews. 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 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

January 19, 2023Media
Zusammenschluss zweier Kanal-service-Spezialisten
bote.ch
March 31, 2022Media
Düring verkauft Pfenniger Entsorgungs AG an Fretz Kanal-Service
luzernerzeitung.ch

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Location

Alte Steinhauserstrasse 34
6330 Cham
Opening hours
Mon
06:45 - 17:00
Tue
06:45 - 17:00
Wed
06:45 - 17:00
Thu
06:45 - 17:00
Fri
06:45 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.912.615
Founded
1990 · 36 years
Last commercial register change
June 19, 2026
Employees
51 to 100
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.85.03%
    • Full methodology

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