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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceSt. GallenRohrhelden Haus- und Kanaltechnik AG
Rohrhelden Haus- und Kanaltechnik AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of the company 'Rohrhelden' is sewer rehabilitation and pipe cleaning, including related services such as sewer TV inspection, pipe and sewer location and cleaning. The company also offers maintenance consulting for real estate and sanitary services.

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Offering

Products & services

Industry:Building Maintenance
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4.1/5

Rohrhelden Haus- und Kanaltechnik AG

✓ Offered4
Drainage sewer rehabilitation
Sewer lining using hose liner, part liner, poly liner and conventional pipe rehabilitation for damaged wastewater pipes, without or with open-cut excavation, including repair of isolated damage and pipe replacement.
Pipe & sewer cleaning
Hydrodynamic pipe cleaning, electromechanical pipe cleaning and manhole emptying for oil separators, pump pits, yard drains and sludge collectors, including professional disposal.
Sewer CCTV inspection
CCTV inspection for condition checks of cleaned or damaged pipes, with documentation of position and alignment as well as photos, videos and reports.
Sewer locating and mapping
Locating and mapping of wastewater systems to capture alignment and depth, including plan preparation with junction branches, pipe diameters and material specifications.
Trust & reputation

ranQ Trust Score of Rohrhelden Haus- und Kanaltechnik AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Rohrhelden Haus- und Kanaltechnik AG scores 87.4 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.87.924%
  • 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.76.210%
  • 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.100.08%
Rohrhelden Haus- und Kanaltechnik AG scores 59.7 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.39.612%
  • 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%
Rohrhelden Haus- und Kanaltechnik AG 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%
Rohrhelden Haus- und Kanaltechnik AG scores 1.1 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 35.1.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Rohrhelden Haus- und Kanaltechnik 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 19 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 19 reviews across all connected sources

Sources
GGoogle519
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Rorschacher Strasse 109a
9000 St. Gallen
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Corporation
UID
CHE-392.555.709
Founded
2024 · 2 years
Last commercial register change
December 27, 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.100.06%
  • 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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