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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesSecurity ServicesZurichAAAAAAAAAA24h-Schlüsseldienst Master-Key C. De Maio
AAAAAAAAAA24h-Schlüsseldienst Master-Key C. De Maio Logo
Verified· 3 sourcesTrust Score
Summary

About the company

AAAAAAAAAA24h-Schlüsseldienst Master-Key C. De Maio provides 24-hour locksmith services including emergency door openings, lock and cylinder repairs, and key duplication. The company plans, supplies and installs mechanical and electronic locking systems and offers security products such as alarm, video and fog systems as well as emergency response after burglary damage.

AI-generated
Offering

Products & services

Industry:Security Services
✓ Offered12
24-hour locksmith service Zurich
Emergency door openings, help with lost keys, broken keys and defective locks; 24 hours a day, 365 days a year, with immediate deployment in Zurich and the surrounding area.
Door and lock repairs
Repairs and maintenance of locks, door openers, door closers, as well as replacement of locking systems that cannot be repaired and installation of replacement components.
Key and cylinder ordering
Ordering of spare keys and mechanical cylinders, with online ordering for KABA and KESO systems and dispatch or processing with a security card.
Emergency service after burglary damage
Immediate measures and repairs after break-ins, temporary securing of doors and cylinders, and support with statements for insurance companies.
Locking system planning
Design, planning, ordering, delivery and installation of mechanical or mechatronic locking systems, including individual concepts for administrations, owners and tenants.
Security consulting
Free security concepts and advice on mechanical and electronic burglary protection, locking systems, window security devices, safes, alarm systems, video and fog systems.
Access control
Electronic access organization with smartphone, transponders and manageable access authorizations; suitable for time- and space-based access rules and flexible locking hierarchies.
Mechanical locking systems
Mechanical locking systems for buildings and premises, planned and installed using products from KABA, KESO, DOM, SEA and other specialist partners.
Electronic locking systems
Electronic locking systems for flexible access management, with solutions from KABA/dormakaba, DOM, Ikon Verso and other systems.
Alarm systems
Alarm systems for electronic burglary protection, including Daitem systems, as part of security concepts and advice.
Video surveillance systems
Video surveillance systems as part of electronic burglary protection and individual security concepts.
Fog systems
Fog systems to complement security concepts and electronic burglary protection.
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4.5/5

AAAAAAAAAA24h-Schlüsseldienst Master-Key C. De Maio

Trust & reputation

ranQ Trust Score of AAAAAAAAAA24h-Schlüsseldienst Master-Key C. De Maio: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of October 2026

AAAAAAAAAA24h-Schlüsseldienst Master-Key C. De Maio scores 93.9 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.89.324%
  • 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.100.010%
  • 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.100.08%
AAAAAAAAAA24h-Schlüsseldienst Master-Key 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%
AAAAAAAAAA24h-Schlüsseldienst Master-Key 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%
AAAAAAAAAA24h-Schlüsseldienst Master-Key C. De Maio scores 71.4 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: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

AAAAAAAAAA24h-Schlüsseldienst Master-Key C. De Maio reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.8 out of 5 stars from 355 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
4.8
of 5

Aggregated from 355 reviews across all connected sources

Sources
GGoogle4.8355
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Berninaplatz 1
8057 Zurich
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Sole proprietorship
UID
CHE-100.497.322
Founded
2000 · 26 years
Last commercial register change
December 4, 2006
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.67.06%
  • 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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