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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringLe Mont-Sur-LausanneJeanfavre & Fils S.A.
Jeanfavre & Fils S.A. Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Jeanfavre & Fils SA encompasses the planning, installation, maintenance, and repair of electrical, automated, and IT systems, including: Electrical installations (electrical wiring, troubleshooting, photovoltaic panels), Building automation (alarm management, supervision, MCR maintenance, HVAC & MCR management, home automation), IT and telecommunications (IT cabling, compliance, electrical installation control, FTTH, fiber optic connection), Energy management and optimization (energy measurement and optimization, Power Monitoring Expert, Solar Manager), Installation of electric vehicle charging systems, and Security systems (security system installation). The company offers its services to both private and commercial customers in the Lausanne region and beyond, throughout Western Switzerland.

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Offering

Products & services

Industry:Technical Consulting & EngineeringElectrical Planning & Installation
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Jeanfavre & Fils S.A.

✓ Offered11
Electrical cabling
Technical studies for electrical installations, coordination and execution of cabling works, tests and commissioning for new builds, renovations and extensions.
Electrical troubleshooting
Troubleshooting of electrical and telephone installations for private clients, property managers, businesses and institutions, with rapid intervention during office hours.
Energy measurement & optimization
Measurement of consumption, analysis and energy monitoring, remote supervision solutions for buildings and industrial processes, to reduce costs and improve performance.
HVAC & MCR management
Control and supervision systems for heating, ventilation and air conditioning, with automation, renovation of installations and 24/7 maintenance and troubleshooting service.
Home automation
Home automation solutions for housing and buildings, with remote control, automated scenarios, management of heating, lighting, blinds and security functions.
Security system installation
Complete security installations including anti-intrusion, access control, fire detection, emergency lighting, video surveillance and associated cabling.
Photovoltaic systems
Turnkey realization of photovoltaic installations, including cabling, electrical metering, grid connection and administrative procedures related to subsidies.
Electric vehicles
Turnkey solutions for charging stations, including consultation, needs analysis, supply, installation, connection and administrative procedures with the relevant industrial services.
Electrical installation inspection
Inspection of electrical installations, distribution boards and power rails, including verification and diagnostics using a thermal camera.
IT cabling
IT cabling and network connection, integrated with electrical work and the building’s technical installations.
FTTH fiber optic connection
FTTH fiber optic connection and fiber splicing/soldering works for communication installations.
Trust & reputation

ranQ Trust Score of Jeanfavre & Fils S.A.: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Jeanfavre & Fils S.A. scores 72.0 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.61.424%
  • 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.84.710%
  • 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.88.08%
Jeanfavre & Fils S.A. scores 94.3 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.90.07%
Jeanfavre & Fils S.A. 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%
Jeanfavre & Fils S.A. scores 37.1 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 35.37.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Jeanfavre & Fils S.A. reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.2 out of 5 stars from 27 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
4.2
of 5

Aggregated from 27 reviews across all connected sources

Sources
GGoogle4.227
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Chemin de Budron B 13
1052 Le Mont-Sur-Lausanne
Opening hours
Mon
07:30 - 12:00, 13:30 - 16:30
Tue
07:30 - 12:00, 13:30 - 16:30
Wed
07:30 - 12:00, 13:30 - 16:30
Thu
07:30 - 12:00, 13:30 - 16:30
Fri
07:30 - 12:00, 13:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.882.678
Founded
1980 · 46 years
Last commercial register change
May 9, 2025
Employees
51 to 100
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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