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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsBexDe A à Z Promotion Énergie Rénovation Sàrl
De A à Z Promotion Énergie Rénovation Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

De A à Z Promotion Énergie Rénovation Sàrl provides renewable energy solutions, focusing on the supply and installation of heat pumps and photovoltaic solar systems. The company also supplies battery storage and electric vehicle charging stations and delivers turnkey project services covering feasibility studies, administrative procedures, installation and post-installation follow-up.

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Products & services

Industry:Solar & Photovoltaics
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De A à Z Promotion Énergie Rénovation Sàrl

✓ Offered7
Photovoltaic solar panels
Turnkey photovoltaic solutions for homes, businesses and projects at larger scale, including feasibility study, installation, commissioning and maintenance.
Heat pumps
Heat pumps for heating, cooling and domestic hot water, with study, installation, administrative procedures and commissioning for homes and renovations.
Solar storage batteries
Storage batteries to optimize solar self-consumption, store excess energy, increase energy independence and provide backup power depending on the configurations.
Electric vehicle charging stations
Charging stations for private individuals and businesses, with home installation, in condominiums or on business premises, with standard, fast and smart solutions.
Reversible air conditioning
Reversible air conditioning for cooling in summer and heating in winter, with personalized study, installation, commissioning, monitoring and maintenance.
PVC, wood and aluminium joinery
Exterior joinery in PVC, wood or aluminium to improve thermal and acoustic insulation, including taking measurements, selecting the models and installation.
PVC windows
Custom-made PVC windows for renovation or new construction, with thermal and acoustic insulation, minimal maintenance, customization and installation by the team.
Trust & reputation

ranQ Trust Score of De A à Z Promotion Énergie Rénovation Sàrl: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

De A à Z Promotion Énergie Rénovation Sàrl scores 86.3 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.77.724%
  • 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.100.010%
  • 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.95.08%
De A à Z Promotion Énergie Rénovation Sàrl scores 67.8 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.64.612%
  • 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%
De A à Z Promotion Énergie Rénovation Sàrl scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
De A à Z Promotion Énergie Rénovation Sàrl scores 13.7 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 35.13.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

De A à Z Promotion Énergie Rénovation Sàrl reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 55 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
4.6
of 5

Aggregated from 55 reviews across all connected sources

Sources
GGoogle4.655
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Rue Centrale 27
1880 Bex
Opening hours
Mon
09:00 - 19:00
Tue
09:00 - 19:00
Wed
09:00 - 19:00
Thu
09:00 - 19:00
Fri
09:00 - 19:00
Sat
09:00 - 12:00
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-260.509.107
Founded
2021 · 5 years
Last commercial register change
October 31, 2023
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.88.06%
  • 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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