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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceDietikonBIGS Schadstoffsanierungen AG
BIGS Schadstoffsanierungen AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

BIGS Schadstoffsanierungen AG inspects buildings for pollutants such as asbestos, PCB, PAH, formaldehyde and microbial contamination. The company plans and carries out pollutant remediation, utility-shaft remediation and tailored technical consulting and training.

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Products & services

Industry:Building Maintenance
✓ Offered5
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3.9/5

BIGS Schadstoffsanierungen AG

Building assessments
Building assessments according to Article 16 VVEA, including analysis of asbestos, PCB, PAHs, formaldehyde and microbial infestation, as well as preparation of expert reports.
Hazardous substance remediation
Hazardous substance remediation for buildings of any kind, including safe and authorities-coordinated implementation of remediation concepts for asbestos, PCB, PAHs and other contaminants.
Riser pipe renovations
Riser pipe renovations as part of building refurbishments, combined with contaminant-related works and coordinated with zoning planning and air balance.
Specialist consulting
Individual specialist consulting for building contaminants, remediation concepts, zoning planning, air balance and coordination with authorities.
Lectures and training
Lectures and training for universities, schools, municipalities, private industry and private events on contaminants and remediation topics.
Trust & reputation

ranQ Trust Score of BIGS Schadstoffsanierungen AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

BIGS Schadstoffsanierungen AG scores 65.9 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.75.024%
  • 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.40.910%
  • 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.70.08%
BIGS Schadstoffsanierungen AG scores 67.5 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.58.012%
  • 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%
BIGS Schadstoffsanierungen 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%
BIGS Schadstoffsanierungen AG scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

BIGS Schadstoffsanierungen AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 4 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 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Riedstrasse 1
8953 Dietikon

At a glance

Legal form
Corporation
UID
CHE-316.307.291
Founded
2022 · 4 years
Last commercial register change
August 7, 2025
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.
100.0
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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