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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringEcublens VdH2 Engineering SA
H2 Engineering SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of H2 Engineering SA is the provision of engineering services in the field of building technology and renewable energy. Specifically, this includes: Electrical engineering: planning and installation of electrical systems, including photovoltaic systems; Climate and ventilation technology: planning and installation of heating, ventilation and air conditioning systems, including geothermal probes; Sanitary technology: planning and installation of sanitary systems, including water and wastewater systems; Building physics: energy audits, thermographic investigations and consulting for the planning of energy-efficient buildings; Fire protection: planning and installation of fire protection systems. The company offers its services for new buildings, renovations and conversions, and supports customers in the implementation of projects that integrate renewable energy and energy-efficient solutions.

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Offering

Products & services

Industry:Technical Consulting & Engineering
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3.9/5

H2 Engineering SA

✓ Offered6
Electrical studies and concepts
Electrical and photovoltaic studies and concepts, high- and low-current installations, security systems, building automation and MCR installations, building domotics, audits and expert assessments.
HVAC studies and concepts
HVAC studies and concepts, heat production and ventilation systems, studies and sizing of geothermal boreholes, audits and expert assessments.
Sanitary studies and concepts
Sanitary studies and concepts, sprinkler systems, sizing of retention basins, water infiltration, pipework, audits and expert assessments.
Building physics and energy audits
Energy audits, CECB, thermography, thermal balance, design according to legal requirements or Minergie standards, preparation of the required forms and support for the building permit.
Fire protection
Integrated fire protection concepts for the project, with safety, cost rationalisation and optimisation, coordinated with the multidisciplinary team.
Renewable energies
Advice and a dedicated point of contact for projects in renewable energies, within the office’s engineering activities.
Trust & reputation

ranQ Trust Score of H2 Engineering SA: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

H2 Engineering SA scores 65.0 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.73.124%
  • 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.35.310%
  • 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%
H2 Engineering SA scores 67.5 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.58.012%
  • 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%
H2 Engineering 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%
H2 Engineering SA scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

H2 Engineering SA reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 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 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Chemin des Champs-Courbes 19
1024 Ecublens Vd
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
Corporation
UID
CHE-453.900.364
Founded
2022 · 4 years
Last commercial register change
December 23, 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.
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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