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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureGeneral ContractorsSt-Aubin FrKaisen SA
Kaisen SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Kaisen SA is a carpentry firm that provides products and services for windows, doors and closure solutions. It serves clients in French-speaking Switzerland.

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Offering

Products & services

Industry:General Contractors
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4.1/5

Kaisen SA

✓ Offered12
Aluminium windows
Custom aluminium windows for new builds and renovations, with slim profiles, large glazed surfaces, thermal and acoustic insulation, on-site measurements, professional installation and after-sales service.
PVC windows
Custom PVC windows for renovation and new construction, with excellent thermal insulation, acoustic comfort, low maintenance, taking of measurements, manufacturing, installation and after-sales service.
Wooden windows
Custom wooden windows for energy-efficient renovation, new construction and heritage buildings, with choice of wood species, double or triple glazing, manufacturing and installation.
Aluminium doors
Custom aluminium doors for new builds and renovation, with entrance doors, pivot doors and solutions tailored to dimensions, colours, opening, glazing and security.
PVC entrance doors
Custom PVC entrance doors with thermal and acoustic insulation, multi-point security, resistance to weather, low maintenance, choice of glazing and installation.
Aluminium sliding doors
Custom aluminium sliding doors for large glazed openings, terraces and patios, with slim profiles, smooth operation, durability, personalised finishes and installation.
PVC lift-and-slide doors (HST)
Custom PVC HST lift-and-slide doors for houses and apartments, with large glazed areas, thermal and acoustic insulation, optional motorisation and installation.
Garage doors
Custom sectional garage doors, manual or motorised, with thermal and acoustic insulation, reinforced security, automation and customisable models.
Exterior solar shading
Custom exterior solar shading, with roller shutters, box-frame and under-plaster systems, wired, radio or home-automation control, to limit heat and glare.
Wooden terraces and pergolas
Custom wooden terraces and pergolas, attached or freestanding, with supporting structures, ventilated foundations, suitable timber species and professional installation.
Interior joinery
Custom interior joinery for integrated storage, dressing rooms, interior doors, staircases, decorative partitions, glass partitions and wooden furniture, from design to installation.
Exterior joinery
Custom exterior joinery for windows, entrance doors, shutters, solar protection, gates, fences and handrails, with manufacturing, installation and after-sales service.
Trust & reputation

ranQ Trust Score of Kaisen 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.

Kaisen 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%
Kaisen 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%
Kaisen SA scores 83.3 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).83.322%
Kaisen SA scores 68.6 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 35.68.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Kaisen 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.

Knowledge

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Location

Route de la Petite-Glâne 26
1566 St-Aubin Fr

At a glance

Legal form
Corporation
UID
CHE-112.625.153
Founded
2005 · 21 years
Last commercial register change
December 19, 2025
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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