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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,544 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceGenevaAntoine Stancheris SA
Antoine Stancheris SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of A. Stancheris S.A. primarily encompasses the following areas: Concrete renovation and protection, Treatment of concrete carbonation, Building maintenance, Compliance of civil protection shelters and fire safety standards for boiler rooms or parking facilities, Building waterproofing through resin injection or application of elastic bands, Application of humidity-regulating coatings, and Renovation of old buildings. The company thus offers a wide range of services in the field of building maintenance, renovation, and protection.

AI-generated
Offering

Products & services

Industry:Building Maintenance
✓ Offered8
Concrete renovation and protection
Concrete renovation and protection, treatment of carbonation, repair of carbonated or spalled concretes, preparation of the substrate and repair mortars.
Sealing and crack injection
Sealing of stabilised cracks in walls, external slabs and porous masonry, injection of polyurethane resin, treatment of water ingress through cracks.
Installation of waterproofing systems
Installation of waterproofing systems for expansion joints, basements, lift pits, drinking-water reservoirs and stopping water ingress.
Building maintenance
Building maintenance, identifying causes of defects, assessments, support during renovations and selection of long-term solutions.
Building insulation
Thermal insulation of the building, external insulation, cavity/core insulation, solutions for walls, roof, attic spaces and floors above basements or crawl spaces.
Humidity-regulating renders
Application of humidity-regulating renders for damp masonry, removal of water vapour, limitation of saline pressure and deterioration.
Maintenance of civil protection shelters
Maintenance and upgrading of civil protection shelters, including renovation work and adaptation to safety requirements.
Drilling and sawing
Drilling and sawing for building work, cutting and drilling interventions as part of renovations and remediation.
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4.0/5

Antoine Stancheris SA

Trust & reputation

ranQ Trust Score of Antoine Stancheris SA: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Antoine Stancheris SA scores 63.1 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.78.124%
  • 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.49.510%
  • 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%
Antoine Stancheris 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%
Antoine Stancheris 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%
Antoine Stancheris SA scores 8.0 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 35.8.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Antoine Stancheris SA reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 6 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 6 reviews across all connected sources

Sources
GGoogle56
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rue des Voisins 8
1205 Geneva
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-103.609.758
Founded
1977 · 49 years
Last commercial register change
May 17, 2021
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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