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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSustainability SectorBussignyGDL Sàrl
GDL Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

GDL Sàrl is primarily engaged in energy efficiency and thermal expertise. Its core activities include: thermal balancing, energy efficiency testing and certification according to EN CECB / CECB Plus, energy expertise, Minergie certification for buildings, and a technical department for energy efficiency and thermal expertise. The company thus provides services in the fields of energy efficiency, thermal expertise, and sustainable building planning.

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Products & services

Industry:Sustainability Sector
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GDL Sàrl

Thermal balance
Thermal balance for new buildings or renovations, calculation of heating needs, cantonal energy forms, and support for the building permit.
Energy expertise
Energy expertise on site, brief situation analysis, renovation priorities for the building envelope and technical systems, energy advice and information on financial support.
CECB / CECB Plus
Issuance of the CECB and CECB Plus for the building, with energy certificates and services related to the energy assessment.
Minergie labelling
Support for the Minergie labelling of new or renovated buildings, linked to energy planning and technical choices.
Energy construction management and client representation (AMO)
Energy construction management and client representation (AMO) for renovation projects, site management, coordination of contractors, quality control, cost monitoring and handover of the works.
Technical department for condensation and moisture
Expert assessment and technical solutions for problems of condensation, moisture, mould and thermal bridges, including an estimate of the works and supervision during application.
Trust & reputation

ranQ Trust Score of GDL Sàrl: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

GDL Sàrl scores 49.8 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.68.224%
  • 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.17.610%
  • 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.35.08%
GDL Sàrl scores 83.0 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%
GDL Sàrl 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%
GDL Sàrl scores 2.9 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 35.2.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

GDL Sàrl reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Rue de l'Industrie 63
1030 Bussigny

At a glance

Legal form
Limited Liability Company
UID
CHE-109.634.890
Founded
2002 · 24 years
Last commercial register change
March 20, 2026
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.
88.0
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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