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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,544 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceWeinfeldenWerner Lang & Co.
Werner Lang & Co. Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Werner Lang & Co. provides services for windows, doors and glazed surfaces, including repairs, conversions, installation, maintenance and replacement of glass and fittings. The company maintains an extensive stock of fittings and offers an emergency repair service, on‑site consultations and solutions such as burglar‑resistant fittings, exterior aluminium cladding and insect screens.

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Offering

Products & services

Industry:Building MaintenanceInterior Construction
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4.0/5

Werner Lang & Co.

✓ Offered4
Window service
All services covering windows, doors and large-area glazing: advice, installation, maintenance, a 24-hour repair service, and replacement of panes and hardware.
Repairs
Repairs to windows and glazing, where possible instead of replacement; replacement of glass or individual hardware parts and restoration even in more complex damage cases.
Alterations
Alterations and renovations for windows and doors, including on-site assessment, advice, sample windows, and an offer for improved burglary resistance and suitable system solutions.
Hardware
Hardware for windows and doors from one stock with around 5,000 different parts, including replacement, additions and installation of burglary-resistant hardware.
Trust & reputation

ranQ Trust Score of Werner Lang & Co.: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Werner Lang & Co. scores 65.8 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.67.124%
  • 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.52.910%
  • 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%
Werner Lang & Co. scores 81.0 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%
Werner Lang & Co. 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%
Werner Lang & Co. scores 7.1 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 35.7.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Werner Lang & Co. reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.4 out of 5 stars from 7 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
4.4
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.47
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Hubgasse 9
8570 Weinfelden
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Limited Partnership
UID
CHE-111.755.853
Founded
2004 · 22 years
Last commercial register change
July 13, 2004
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.
79.0
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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