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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsInsStF Messerli AG
StF Messerli AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company's core activity is the provision of services in the field of building envelopes, particularly in the areas of roofs, facades and windows. The company offers fall protection, maintenance and renovation of buildings and has specialized equipment such as cranes and aerial lifts. It also deals with the installation of photovoltaic systems and offers corresponding services.

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Offering

Products & services

Industry:Solar & Photovoltaics
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3.9/5

StF Messerli AG

10
Sheet metal work
All types of sheet metal work for pitched roofs, flat roofs and façades; metalwork, artistic sheet metal work, building sheet metal work, as well as measurements and fabrication according to customer requirements.
Roofing work
Pitched roofs with tile, concrete tile, fibre-cement or metal coverings, as well as flat roofs with usable and protective layers, green roofing and a waterproofing function.
Façade work
Ventilated façades, metal cladding systems and design of the building envelope using various materials and colours.
Solar systems
Solar energy from the roof, with advice and building-specific planning for suitable system sizes.
Lightning protection systems
Planning, installation and formal completion of external lightning protection with air termination, down-conductors and earthing; including permits and formalities in the canton of Fribourg.
Fall protection
Planning and installation of fall protection for pitched and flat roofs so that maintenance work can be carried out safely and efficiently.
Quotation and planning
Planning and quotation of lightning protection systems and conversions; CAD-based design of the entire building envelope and further processing of architects’ plans.
Renovation and maintenance
Renovation and regular maintenance of the entire building envelope, including pitched roof, flat roof and ventilated façade; advice on energy improvements and subsidy calculations.
Crane and lifting platform work
Crane with large reach and convertible lifting platform for lifting work, installation such as windows or timber structures, and work up to 42 metres in height.
Laser-cut and window sill products
Laser-cut metal products and window sills as made-to-size components for the building envelope and for the shop area.
Trust & reputation

ranQ Trust Score of StF Messerli AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

StF Messerli AG scores 54.7 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.60.024%
  • 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.45.610%
  • 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.50.08%
StF Messerli AG 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%
StF Messerli AG 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%
StF Messerli AG scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

StF Messerli AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 5 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
4
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle45
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rämismatte 13
3232 Ins
Opening hours
Mon
07:30 - 11:30, 13:15 - 17:00
Tue
07:30 - 11:30, 13:15 - 17:00
Wed
07:30 - 11:30, 13:15 - 17:00
Thu
07:30 - 11:30, 13:15 - 17:00
Fri
07:30 - 11:30, 13:15 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-110.586.281
Founded
2004 · 22 years
Last commercial register change
November 23, 2023
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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