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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryReal EstateFacility Management & CleaningLeysinG-S Nettoyages - Conciergerie - Jardinage Jankovic
G-S Nettoyages - Conciergerie - Jardinage Jankovic Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of GSN Services Sàrl encompasses various services in the fields of cleaning, maintenance, and concierge services. The main activities are: Cleaning Service: regular and occasional cleaning of residential and commercial properties, including surface cleaning, parking lots, stores, and furniture. Moving Service: organization and execution of moves for private individuals and companies. Gardening Service: maintenance and upkeep of gardens and outdoor facilities. Snow removal service: clearing of snow and ice from streets, paths, and parking lots. Condition report: creation of condition reports for properties. The company thus offers a wide range of services tailored to the needs of private individuals, companies, and institutions.

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Offering

Products & services

Industry:Facility Management & Cleaning
✓ Offered
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4.2/5

G-S Nettoyages - Conciergerie - Jardinage Jankovic

6
Regular maintenance and cleaning
Full-service maintenance and cleaning of premises, including opening and closing, alarm arming, access control and tailor-made services.
One-off cleaning services
One-off cleanings and restoration of premises, apartments, houses, shops, depots and factories, including window, floor, kitchen, sanitary and outdoor cleaning.
Move-out condition reports
Repairs for move-out condition reports, for apartments, houses, shops, offices, depots, theatres, factories, incidents and vandalism.
Moving service
Local moving service with a customised plan, dedicated coordination, transport and delivery of goods, from the initial quote through to arrival at the new home.
Gardening service
Gardening, lawn mowing, small tree felling, mowing of embankments and meadows, winter protection for shrubs, autumn cleanup of fallen leaves, garden and roof.
Snow removal service
Rapid snow removal for businesses and private customers, especially car parks and supplier access routes, with a snow-clearing machine and a tractor equipped with a snow blade.
Trust & reputation

ranQ Trust Score of G-S Nettoyages - Conciergerie - Jardinage Jankovic: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

G-S Nettoyages - Conciergerie - Jardinage Jankovic scores 83.1 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.82.424%
  • 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.80.810%
  • 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%
G-S Nettoyages - Conciergerie - Jardinage Jankovic scores 74.9 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.83.012%
  • 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.70.07%
G-S Nettoyages - Conciergerie - Jardinage Jankovic 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%
G-S Nettoyages - Conciergerie - Jardinage Jankovic scores 0.9 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 35.0.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

G-S Nettoyages - Conciergerie - Jardinage Jankovic reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.8 out of 5 stars from 23 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
4.8
of 5

Aggregated from 23 reviews across all connected sources

Sources
GGoogle4.823
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rue du Village 12
1854 Leysin
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
08:00 - 12:00
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-438.171.528
Founded
2017 · 9 years
Last commercial register change
May 24, 2018
Employees
11 to 20
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.67.06%
  • 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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