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DirectoryReal EstateProperty ManagementSierreTschopp-Zwissig SA, Industrie du bois
Tschopp-Zwissig SA, Industrie du bois Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Tschopp-Zwissig SA, Industrie du bois is a joinery company that manufactures windows and carries out interior fittings. Its product range includes timber, timber‑aluminium and PVC windows (including the Pollux system), doors, fire/anti‑flood solutions and technical services related to thermal and acoustic insulation.

AI-generated
Offering

Products & services

Industry:Property Management
✓ Offered9
Wood-metal windows Structural
Wood-metal windows with bonded glazing on the timber and a metal profile; airtight and watertight, wind-resistant, with acoustic and thermal performance.
Kitchen
Interior fit-out kitchens in old wood, flush oak, rustic oak, assembled front, veneered or lacquered, depending on project requirements.
Wood entrance doors
Entrance doors in fir or fine woods such as oak or larch, with glazed versions, solid panels and options for electronic locking.
Interior fit-out
Custom interior fit-outs for interior walls, ceilings, bathrooms, staircases, libraries, cupboards, furniture and communication doors.
Wood windows
Wood windows for different configurations, with glazing options and variants tailored to requirements for performance, security and insulation.
Wood-metal windows
Wood-metal windows with technical and aesthetic variants, incorporating solutions for performance, sealing and insulation.
PVC windows
PVC windows offered within the window range, with variants adapted to new-build and renovation projects.
Wood-metal doors
Entrance doors in wood-metal, with designs tailored to requirements for security, insulation and design.
PVC doors
Entrance doors made of PVC, offered as a variant of the site's door range.
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4.7/5

Tschopp-Zwissig SA, Industrie du bois

Trust & reputation

ranQ Trust Score of Tschopp-Zwissig SA, Industrie du bois: 4.7 out of 5.0

Trust Score4.7/ 5.0

Excellent

x

Data basis 96% · As of October 2026

Tschopp-Zwissig SA, Industrie du bois scores 92.4 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.89.024%
  • 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.94.410%
  • 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%
Tschopp-Zwissig SA, Industrie du bois scores 97.4 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.96.07%
Tschopp-Zwissig SA, Industrie du bois 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%
Tschopp-Zwissig SA, Industrie du bois scores 57.1 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 35.57.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Tschopp-Zwissig SA, Industrie du bois reaches a ranQ Trust Score of 4.7 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.9 out of 5 stars from 40 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
4.9
of 5

Aggregated from 40 reviews across all connected sources

Sources
GGoogle4.940
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Hier entsteht die Karte
Chemin des Platanes 21
3960 Sierre
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-101.549.364
Founded
1981 · 45 years
Last commercial register change
December 27, 2017
Employees
101 to 500
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.85.03%
    • Full methodology

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