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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsZurichMaster Alarm C. De Maio
Master Alarm C. De Maio Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Master Alarm is the planning, installation and maintenance of security systems, including alarm systems, fire warning systems, video systems and fog systems. Additionally, the company offers security consulting, locksmith services and emergency repairs.

AI-generated
Offering

Products & services

Industry:Specialized Construction Installations
✓ Offered8
Alarm systems
Radio alarm systems for burglary protection, planning, installation, service and support; Daitem alarm systems are also mentioned.
Fire warning system
Fire warning systems for warning in the event of fire incidents, listed as a separate product in the field of security technology.
Video systems
Video systems for high-tech video surveillance or wireless camera installation, suitable for security applications.
Fogging systems
Fog generators and fogging systems to deter and delay burglars.
24h emergency service / emergency duty service
24-hour emergency service with telephone availability in an emergency.
Security consulting
Security consulting for suitable solutions, offered free of charge and without obligation.
Locksmith service
Locksmith service in the Zurich area for access, keys and lock issues.
Immediate repairs
Immediate repairs for break-in damage to quickly restore security.
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4.1/5

Master Alarm C. De Maio

Trust & reputation

ranQ Trust Score of Master Alarm C. De Maio: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Master Alarm C. De Maio has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Master Alarm C. De Maio 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%
Master Alarm C. De Maio 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%
Master Alarm C. De Maio scores 45.7 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 35.45.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Master Alarm C. De Maio reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Berninaplatz 1
8057 Zurich
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
Sole proprietorship
UID
CHE-112.322.474
Founded
2005 · 21 years
Last commercial register change
May 12, 2025
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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