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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionAlterswil FrFahrni & Haymoz GmbH
Fahrni & Haymoz GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Fahrni & Haymoz GmbH is the provision of services in the field of timber construction, particularly in the areas of: carpentry, interior finishing, roofing and sheet metal work, facades, scaffolding, lightning protection and photovoltaics. The company thus offers a wide range of services focused on the planning, execution and maintenance of timber structures.

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Products & services

Industry:Interior ConstructionTimber Construction & Carpentry
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Fahrni & Haymoz GmbH

Roofing
Solar & Photovoltaics
✓ Offered6
Timber framing
Custom timber constructions for garden houses, residential buildings, agricultural structures, halls and conversions.
Interior fit-out
Ceilings, wall claddings, floors, staircases, windows and doors for functional and stylish interior finishing.
Roofing and sheet metal work
Steep and flat roofs, roof renovations, lightning protection, sheet metal work and installation of roof windows.
Facades
Timber cladding, ventilated facade systems, as well as Eternit-, sheet metal-, Fundermax- and Kaycan facades.
Scaffold construction
Scaffold construction and fall protection for safe work on construction sites, coordinated using own resources.
Photovoltaics
Photovoltaic systems for sustainable energy generation, professionally planned and integrated into the roof and building.
Trust & reputation

ranQ Trust Score of Fahrni & Haymoz GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Fahrni & Haymoz GmbH scores 66.9 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.73.124%
  • 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.35.310%
  • 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%
Fahrni & Haymoz GmbH scores 83.0 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%
Fahrni & Haymoz GmbH 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%
Fahrni & Haymoz GmbH scores 9.7 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 35.9.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Fahrni & Haymoz GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 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 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Schlossacher 1
1715 Alterswil Fr

At a glance

Legal form
Limited Liability Company
UID
CHE-105.666.856
Founded
2000 · 26 years
Last commercial register change
January 8, 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.
88.0
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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