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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesOther Service IndustriesMünsingenCHANG ACS
CHANG ACS Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of ACS Sicherheits- und Schliesstechnik is the provision of services and sale of products in the field of lock technology, security technology, and shoe repair. Specifically, this includes: lock systems and lock service, key production and copying, including car keys with immobilizers, burglary protection and alarm systems, video surveillance, and shoe repair and sales. The company offers these services and products at one location in Münsingen and is available 24 hours a day.

AI-generated
Offering

Products & services

Industry:Other Service Industries
✓ Offered8
Key cutting
Key copies, safe keys, car keys and motorcycle keys with an immobiliser, including programming.
Locking systems
Planning and support for locking systems and access control for buildings and facilities.
Burglary protection
Security solutions to protect against break-ins, complemented by alarm systems and video surveillance.
Alarm systems
Alarm systems for residential and commercial premises.
Video surveillance
Video surveillance for premises, in addition to locking systems, burglary protection and alarm systems.
Lock repair
Repair of locks as part of the lock, key and engraving service.
Engraving and laser marking
Engravings and laser marking as an additional service alongside key and lock work.
Shoe repair
Services for shoe repair, integrated into the shop at Gartenstrasse 1.
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4.2/5

CHANG ACS

Trust & reputation

ranQ Trust Score of CHANG ACS: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

CHANG ACS scores 77.2 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.71.624%
  • 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.76.210%
  • 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.95.08%
CHANG ACS scores 78.5 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%
CHANG ACS 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%
CHANG ACS scores 31.4 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 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

CHANG ACS reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.5 out of 5 stars from 19 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
4.5
of 5

Aggregated from 19 reviews across all connected sources

Sources
GGoogle4.519
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Gartenstrasse 1
3110 Münsingen
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:30
Tue
08:00 - 12:00, 13:00 - 17:30
Wed
08:00 - 12:00, 13:00 - 17:30
Thu
08:00 - 12:00, 13:00 - 17:30
Fri
08:00 - 12:00, 13:00 - 17:30
Sat
09:00 - 14:00
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-180.634.005
Founded
2011 · 15 years
Last commercial register change
August 18, 2011
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.
67.0
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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