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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryGeneral Goods ProductionRoggwil BeErnst Gerber AG
Ernst Gerber AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Ernst Gerber AG provides sewer and pipe cleaning, suction/blowing services and waste disposal including container (mulde) services. Offerings include CCTV inspection and leak testing of pipelines, dry and wet vacuuming for construction and roofs, mobile treatment units and installation of substrates for roof greening.

AI-generated
Offering

Products & services

Industry:General Goods Production
✓ Offered8
Waste disposal
Collection and disposal of household waste, green waste, paper and cardboard for municipalities and industrial operations; with refuse collection vehicles, Molok underground bins and a maintenance schedule.
Sewer cleaning
Cleaning of wastewater pipes, channels and manholes with high-pressure equipment, TV camera and vacuum and jetting vehicles; including maintenance of sewage tanks, grease separators and oil separators.
Skip and container service
Rental and use of skips and containers for waste-disposal issues, with a suitable solution for municipalities, businesses and private construction sites.
Drain cleaning
Cleaning of drains and wastewater connections to prevent blockages, backflow, odours and consequential costs.
Vacuum and blowing
Vacuuming and blowing solid and dry materials, including applications such as vacuuming and blowing flat-roof gravel.
Roof greening
Planning and installation of roof greening, as well as delivery of greening substrates, tree substrate and recycled roof tiles.
Sewer TV inspection
TV inspection of sewers and pipes for visual assessment of the condition underground.
Disposal of drilling mud
Disposal of drilling mud as part of waste-disposal services for commercial businesses and municipalities.
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4.4/5

Ernst Gerber AG

Trust & reputation

ranQ Trust Score of Ernst Gerber AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

Ernst Gerber AG scores 76.2 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.65.024%
  • 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.88.110%
  • 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.95.08%
Ernst Gerber AG scores 93.9 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.82.07%
Ernst Gerber AG scores 85.0 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).85.022%
Ernst Gerber AG scores 34.3 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 35.34.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Ernst Gerber AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.3 out of 5 stars from 31 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
4.3
of 5

Aggregated from 31 reviews across all connected sources

Sources
GGoogle4.331
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Mumenthalstrasse 5
4914 Roggwil Be
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:00
Tue
07:30 - 12:00, 13:30 - 17:00
Wed
07:30 - 12:00, 13:30 - 17:00
Thu
07:30 - 12:00, 13:30 - 17:00
Fri
07:30 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.193.923
Founded
1988 · 38 years
Last commercial register change
June 26, 2018
Employees
21 to 50
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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