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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringWinterthurBWS Labor AG
BWS Labor AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of BWS Labor AG is the execution of construction damage analyses, material analyses, and the creation of renovation and restoration concepts for historic buildings. This includes assessing the structural condition, testing usability, and considering ecological and aesthetic requirements. The company also offers material-technical consulting, intervention concepts, and the development of recipes for the original material refurbishment.

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Products & services

Industry:Technical Consulting & Engineering
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BWS Labor AG

✓ Offered5
Condition and damage analyses
Comprehensive condition analysis, assessments of damage and serviceability testing of historic building fabric; including building investigations, moisture measurements, uncovering, probing and a written investigation report.
Material analyses
Material and material-property analyses in the laboratory as well as on site; material testing, sampling, identification of material composition, foreign substances, contaminations, building salts and signs of ageing.
Plaster and paint analyses
Plaster, mortar, paint and pigment analyses to determine historical layer sequences, material build-up, material compatibility, binders, pigments and accompanying substances relevant to damage.
Intervention concepts
Rehabilitation and restoration concepts with specific recommendations for measures, strategies to safeguard the fabric, material formulations and procedures to address damage processes.
Consulting
Material-technical and building-ecology consulting in the historic fabric; assessment of serviceability, building-physical compatibility, removability, reworkability, care, maintenance and disposal.
Trust & reputation

ranQ Trust Score of BWS Labor AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

BWS Labor AG scores 62.0 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.70.824%
  • 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.27.910%
  • 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.78.08%
BWS Labor AG scores 85.5 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.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.55.07%
BWS Labor 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%
BWS Labor AG scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

BWS Labor 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 2 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 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Hard 4
8408 Winterthur

At a glance

Legal form
Corporation
UID
CHE-107.371.366
Founded
1991 · 35 years
Last commercial register change
March 13, 2020
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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