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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringSierreDepair SA
Depair SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of DEPAIR SA consists in the conception, manufacture and marketing of innovative solutions for air treatment, particularly in the development and manufacture of air treatment units, including retrofit solutions, transformation, regulation and studies. The company also offers services such as maintenance, repair and installation of ventilation systems.

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Offering

Products & services

Industry:Technical Consulting & EngineeringMechanical Engineering Industry
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4.3/5

Depair SA

✓ Offered6
Monobloc air handling units
Air handling units for ventilation, air conditioning, humidification and heat recovery, custom-built in Sierre, delivered as partially assembled modules.
Control of air handling units
Integrated control or control in an external cabinet for new units or retrofits, with temperature, CO2, flow rate or pressure control, heat recovery units, battery coils and dampers.
Retrofit | Transformation
Modernisation of ventilation installations, replacement of motors and fans, on-site measurements, calculation of energy savings and payback, commissioning included.
Commissioning
Commissioning of air handling units, including initial verification, power-up, parameter settings, functional tests, documentation and training.
Remote monitoring & supervision
Telemanagement of installations with remote access for monitoring, SMS or email alerts, support for technicians, troubleshooting and remote PLC programming.
After-sales service and maintenance
Technical support, preventive maintenance, corrective maintenance, troubleshooting, adjustments and user training for air handling units.
Trust & reputation

ranQ Trust Score of Depair SA: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Depair SA scores 76.7 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.87.024%
  • 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.73.510%
  • 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.50.08%
Depair SA scores 92.3 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.82.07%
Depair SA 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%
Depair SA scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Depair SA reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 17 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
5
of 5

Aggregated from 17 reviews across all connected sources

Sources
GGoogle517
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rue du Manège 30
3960 Sierre
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:00
Tue
07:30 - 12:00, 13:30 - 17:00
Wed
07:30 - 12:00, 13:30 - 17:00
Thu
07:30 - 12:00, 13:30 - 17:00
Fri
07:30 - 12:00, 13:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-103.471.454
Founded
1985 · 41 years
Last commercial register change
September 21, 2021
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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