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

About the company

The core activity of Deval Schlüsselservice is to provide services and solutions in the field of locking systems, access systems, keys and locks. Specifically, this includes: key service (key reordering, key emergency service), burglary protection (securing windows and doors), carpentry service (carpentry repairs), consulting and creation of security concepts, and sales and service of locking systems and access systems from various manufacturers (Dormakaba, Keso, EVVA).

AI-generated
Offering

Products & services

Industry:Other Service Industries
✓ Offered8
Key service
Access systems for doors with mechanical and electronic locking systems, advice on entry control, emergency exit regulations, as well as panic locks and signage.
Key emergency service
Door, window and lock openings with minimal damage, break-in repairs and restorations in case of lost keys, jammed locks or emergencies.
Burglary protection
Security consulting and retrofitting for front doors, windows, balcony doors, cellar and garage doors, as well as valuables protection with safes and cash chests.
Carpentry service
Repairs and replacement of doors, door fittings and locking cylinders, as well as manufacturing and installation of security doors, kitchen fronts and other workshop work.
Key reordering
Reordering of keys via forms for Dormakaba, Keso and EVVA with a security card and details of installation, number and card code.
Access systems (Dormakaba)
Mechanical locking systems and access control with Kaba star, C-Lever access fitting and individual authorization organization.
Access systems (Keso)
Biometric and electronic access systems with fingerprint reader, Code Handle and ANYKEY security fitting for indoor and outdoor areas.
Access systems (EVVA)
Electronic and mechanical locking systems with Xesar, AirKey and 4KS for residential buildings, business premises, hotels, infrastructure and other properties.
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3.9/5

DEVAL, F. De Vallier

Trust & reputation

ranQ Trust Score of DEVAL, F. De Vallier: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

DEVAL, F. De Vallier scores 61.9 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.63.324%
  • 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.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.78.08%
DEVAL, F. De Vallier 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%
DEVAL, F. De Vallier 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%
DEVAL, F. De Vallier scores 1.1 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 35.1.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

DEVAL, F. De Vallier reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.2 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 October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.2
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle4.25
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Hier entsteht die Karte
Kehlhofstrasse 11 B
8500 Frauenfeld
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 15:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
07:00 - 17:00
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-108.668.596
Founded
2005 · 21 years
Last commercial register change
April 18, 2005
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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