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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryCrafts & TradesMetalworkAltstätten SgKarl Wüst AG
Karl Wüst AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Karl Wüst AG is a company that provides steel, metal and façade construction, including metal–glass façades, locksmith work, stairs and exhibition construction. Its services include cost estimation, project planning, in-house production and on-site assembly.

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Service area

Offering

Products & services

Industry:Metalwork
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Karl Wüst AG

✓ Offered7
Metal construction
Metal doors and metal windows, balcony systems, staircases and railings, glazing, fire-protection solutions, awnings, canopies and carports.
Steel construction
Planning, fabrication and assembly of steel construction solutions for office buildings, production facilities, industrial halls, warehouses, extensions on top, balcony structures, seismic protection and steel structures.
Light metal construction
Aluminium and glass solutions with metal-glass façades, windows, doors, lift-and-slide elements, folding walls, winter gardens, pergolas, fire-protection doors, soundproofing doors and post-and-beam constructions.
Building envelopes from concrete
Building envelopes for production buildings, commercial and office buildings, hangars, warehouses, extensions and renovations; planning, fabrication and installation from a single source.
Facade construction
Facade solutions for building envelopes with consulting on material and design; various systems in all shapes and colours, including for roof and façade construction.
Exhibition stand construction
Production of exhibition stands, bespoke manufacture as well as planning and implementation; set-up and dismantling at trade fair locations by partner company Fairtec AG.
Customer service
Repairs, service, maintenance and small jobs for doors, windows, façades and other metal components; including broken glass, jamming and break-in damage.
Trust & reputation

ranQ Trust Score of Karl Wüst AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 100% · As of November 2026

Karl Wüst AG scores 65.3 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.55.910%
  • 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%
Karl Wüst AG scores 92.3 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%
Karl Wüst AG scores 88.3 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).88.322%
Karl Wüst AG scores 57.4 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 35.71.44%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.43.34%
Qualifications+0.00

Karl Wüst AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.3 out of 5 stars from 8 customer reviews. As of November 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 8 reviews across all connected sources

Sources
GGoogle4.38
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

July 18, 2025Media
«Ohne Fleiss kein Preis»: 50 Jahre Wüst Metallbau
leaderdigital.ch
January 5, 2022Media
Wüst Metallbau AG ehrt Jubilarinnen und Jubilare
rheintaler.ch
December 22, 2014Media
Dem grossen Preisdruck getrotzt
tagblatt.ch
December 23, 2013Media
Ein gewaltiger Sprung nach vorn
tagblatt.ch

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Location

Bilchenweg 14
9450 Altstätten Sg
Opening hours
Mon
07:00 - 17:30
Tue
07:00 - 17:30
Wed
07:00 - 17:30
Thu
07:00 - 17:30
Fri
07:00 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.930.478
Founded
1979 · 47 years
Last commercial register change
June 13, 2017
Employees
21 to 50

Active in 1 of 26 cantons

  • SGSt. Gallen
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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