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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesGlazieryBrugg Agsim fenster ag
sim fenster ag Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of sim fenster ag is the planning, production and installation of high-quality window solutions, including plastic, wood, wood-metal and aluminum windows, as well as front doors and sliding doors. The company also offers services such as window renovation, security windows and burglary protection.

AI-generated
Offering

Products & services

Industry:Glaziery
✓ Offered10
Windows
Custom-made windows in plastic, wood, wood-metal and aluminium; also sliding windows, with planning, production and installation from one source.
Doors
Custom-made doors, including entrance doors, sliding doors and lift-and-slide doors; planning, production and installation from one source.
Window planning
Window planning for construction and renovation projects, with comprehensive advice, including on site, as well as planning of light, ventilation, energy efficiency and safety.
Window production
Window production in Switzerland to measure, using traditional craftsmanship and modern technology.
Window installation
Window installation as part of the all-in-one service, from planning through production to installation.
Window refurbishment
Window refurbishment to modernise existing windows and save energy.
Security windows
Security windows for enhanced burglary protection, focusing on safety and resistance.
Thermal insulation glass
Thermal insulation glass for improved thermal insulation and energy efficiency in windows.
Solar control glass
Solar control glass to reduce solar radiation and improve room comfort.
Safety glass
VSG and ESG safety glass for applications with increased safety requirements.
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4.0/5

sim fenster ag

Trust & reputation

ranQ Trust Score of sim fenster ag: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 100% · As of October 2026

sim fenster ag scores 68.1 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.58.624%
  • 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.74.910%
  • 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.88.08%
sim fenster ag scores 83.4 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.79.212%
  • 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%
sim fenster ag scores 86.7 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).86.722%
sim fenster ag scores 18.6 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 35.37.14%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

sim fenster ag reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.1 out of 5 stars from 18 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.1
of 5

Aggregated from 18 reviews across all connected sources

Sources
GGoogle4.118
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

May 5, 2026Media
Fensterfabrik kommt nach Mellingen
reussbote.ch
December 12, 2025Media
Fensterfabrik will im Aargau bleiben
reussbote.ch
December 2, 2025Media
Statt Felder eine Fensterfabrik mit Produktion
reussbote.ch

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Location

Wildischachenstrasse 14
5200 Brugg Ag
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-420.347.638
Founded
2018 · 8 years
Last commercial register change
June 16, 2025
Employees
21 to 50
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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