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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryCrafts & TradesCarpenterAlosenAdolf Nussbaumer Fensterbau AG
Adolf Nussbaumer Fensterbau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Adolf Nussbaumer Fensterbau AG manufactures and sells windows for new buildings, conversions and renovations. Its products include timber windows, timber-aluminium windows, renovation windows, and lift-and-slide and parallel-slide doors.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Carpenter
✓ Offered3
Wood-metal and renovation windows
Wood-metal windows and renovation windows with replacement frames for new builds, conversions and renovations; on request energy-efficient, with an aluminium cladding and as little loss of light as possible.
Wood windows
Wood windows made from local timbers such as spruce, fir or pine; available in various designs, natural-coloured or spray-painted white, for traditional and modern building projects.
Sliding doors
Lift-and-slide and parallel sliding doors for large glass surfaces and flexible openings; available in wood-metal or wood versions, for new builds, conversions and renovations.
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4.1/5

Adolf Nussbaumer Fensterbau AG

Trust & reputation

ranQ Trust Score of Adolf Nussbaumer Fensterbau AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of November 2026

Adolf Nussbaumer Fensterbau AG scores 68.0 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.76.724%
  • 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.45.610%
  • 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%
Adolf Nussbaumer Fensterbau 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%
Adolf Nussbaumer Fensterbau AG 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%
Adolf Nussbaumer Fensterbau AG scores 6.6 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 35.6.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Adolf Nussbaumer Fensterbau 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 5 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Schwandstrasse 18
6315 Alosen
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.911.449
Founded
1982 · 44 years
Last commercial register change
June 21, 2024
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ZGOberägeri
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.70.03%
    • Full methodology

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