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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,544 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringCarouge GeErte Ingénieurs Conseils SA
Erte Ingénieurs Conseils SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of ERTE Consulting Engineers AG is the planning, consulting and implementation of innovative energy concepts in the field of building technology, particularly in the areas of heating, ventilation, air conditioning, solar energy and earth-to-air heat exchangers. The company offers services from conception to maintenance and focuses on the development of environmentally friendly and efficient solutions for private and public construction projects.

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Offering

Products & services

Industry:Technical Consulting & EngineeringSolar & Photovoltaics
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4.1/5

Erte Ingénieurs Conseils SA

✓ Offered5
Building services engineering and installation
Building services engineering and installation, from design through calculation, coordination and execution to the optimisation and maintenance of systems.
SUNERGIE® system
Solar system for heating, cooling and hot water production, suitable for new builds and renovations, using existing distribution and combining with photovoltaic systems and heat pumps.
Ground heat exchanger / Canadian well
Ground heat and fresh-air system for preheating outdoor air in winter and cooling in summer, suitable for ventilation systems and heat pumps.
Solar technology and solar installations
Solar technology for buildings, including solar panels, solar heat pumps, solar roofs and solar-based energy concepts for new builds and conversions.
Heating, ventilation, air conditioning and sanitary engineering
Design and optimisation of heating, ventilation and air-conditioning systems, hydraulic balancing, and sanitary and electrical installations for residential, administrative and hospital buildings.
Trust & reputation

ranQ Trust Score of Erte Ingénieurs Conseils SA: 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.

Erte Ingénieurs Conseils SA 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%
Erte Ingénieurs Conseils SA scores 85.5 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%
Erte Ingénieurs Conseils 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%
Erte Ingénieurs Conseils SA scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Erte Ingénieurs Conseils SA 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.

Knowledge

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Location

Rue du Tunnel 15
1227 Carouge Ge
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-103.892.407
Founded
1990 · 36 years
Last commercial register change
January 15, 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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