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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureTimber constructionSionGauye et Dayer SA
Gauye et Dayer SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Gauye et Dayer SA is a timber construction and joinery company working on new buildings and renovations. Its services include timber frames and roof structures, insulation, custom-made exterior and interior joinery, and interior fit-outs.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Timber construction
✓ Offered7
Timber constructions
Timber constructions for new buildings and renovations of chalets and buildings, with framework, timber framing, roofing, insulation, exterior joinery and interior fit-out.
Custom exterior joinery
Custom exterior joinery made in the workshop, including wooden windows, entrance doors, garage doors, hinged shutters, cladding and balconies.
Custom interior fit-out
Made-to-measure fabrication and installation of interior joinery for the layout of living spaces and indoor areas.
Timber framing
Timber framing work carried out by carpenters, with software-assisted design, fabrication plans and execution for new builds or renovations.
GD ECO construction systems
GD ECO timber construction elements for timber framing projects, presented as a distinct product range of the company.
GD CLT construction systems
GD CLT construction systems for timber buildings, offered as a specific range from the company.
GD THERME construction systems
GD THERME walls, ceilings and slabs with high insulating capacity, with coating options, fire-protecting walls and technical advice.
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4.1/5

Gauye et Dayer SA

Trust & reputation

ranQ Trust Score of Gauye et Dayer SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

Gauye et Dayer 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%
Gauye et Dayer SA scores 89.3 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.70.07%
Gauye et Dayer 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%
Gauye et Dayer SA scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gauye et Dayer 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 November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Route de la Drague 30
1950 Sion

At a glance

Legal form
Corporation
UID
CHE-102.757.853
Founded
1984 · 42 years
Last commercial register change
June 25, 2026
Employees
11 to 20

Active in 1 of 26 cantons

  • VSValais
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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