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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureGeneral ContractorsCarouge GeBertolit SA
Bertolit SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Bertolit includes the execution of renovation and refurbishment work on buildings, including facades, roofs, interior spaces, waterproofing and outdoor facilities. The company offers its services as a general contractor and performs work such as asbestos removal, modernization of sanitary facilities and electrical systems, as well as building renovation.

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Offering

Products & services

Industry:General ContractorsGlass, Ceramics, Stone & Construction Materials Industry
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Bertolit SA

✓ Offered8
Energy compliance
Thermal insulation of facades, flat roofs, cellars and basements; exterior insulation, extremely fine interior insulation, aerogel insulating render, energy compliance CECB+.
Facades
Maintenance and renovation of façades: securing and emergency measures, high-pressure washing, treatment of concrete, anti-carbonation protection, strengthening and bringing balconies into compliance.
Special works
Floor resin and waterproofing, infiltrations, injections, tanking, remediation of parking garages and basements, core drilling, masonry, building safety measures, expansion joints.
Interior fit-out
Demolition, replacement of sanitary risers, plastering and painting, drywalls, false ceilings, floor coverings for apartments, offices and commercial areas.
Decontamination
Diagnosis of hazardous substances, asbestos removal, removal of sealants and PCB paints, interventions on lead-based paints, removal of PAHs, removal of insulation containing HBCD, removal of mercury.
Waterproofing
Emergency interventions, treatment of infiltrations, periodic maintenance, technical studies, waterproofing works for roofs, terraces, balconies and parking areas, lifelines.
Emergency services
Securing the site, small-scale masonry work, leak detection, repointing, checking thermal bridges for rapid interventions on buildings and property management units.
Surface treatment
Sandblasting, hydroblasting, air blasting, high-pressure washing, anti-graffiti protection, grinding, acid etching, polishing and cleaning of floors, bush-hammering, water-repellent and oil-repellent treatments.
Trust & reputation

ranQ Trust Score of Bertolit SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Bertolit SA has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Bertolit SA scores 90.9 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.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.70.07%
Bertolit SA scores 83.3 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).83.322%
Bertolit SA scores 57.1 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 35.57.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bertolit SA reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Hier entsteht die Karte
Route des Jeunes 43
1227 Carouge Ge

At a glance

Legal form
Corporation
UID
CHE-105.844.543
Founded
1965 · 61 years
Last commercial register change
August 12, 2025
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.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.85.03%
    • Full methodology

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