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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsSirnachGranwehr GmbH
Granwehr GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Granwehr GmbH is the manufacture, assembly and maintenance of garage doors, drives, doors, central vacuum cleaners and laundry disposal systems. The company also offers renovation and refurbishment services for gates and other products.

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Offering

Products & services

Industry:Specialized Construction Installations
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4.3/5

Granwehr GmbH

✓ Offered
5
Garage doors
Garage doors in various designs, including sectional doors, industrial doors, roller doors, side sectional doors and swing-up doors; consultation, installation, maintenance and repair included.
Gate drives
Gate drives from Berner, EazyMatic and Sommer, plus accessories such as handheld transmitters, coding switches, light barriers and key switches.
Doors
Front doors, entrance doors, side doors and steel doors made of aluminium or steel, including those from Groke, Teckentrup and GSW.
Central vacuum systems
Central vacuum systems from Cyclo Vac with various hose systems, suction units, accessories as well as repairs and spare parts.
Laundry chute systems
Laundry chute systems made of polypropylene or chrome steel, including inlet doors and planning for new builds and renovations.
Trust & reputation

ranQ Trust Score of Granwehr GmbH: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Granwehr GmbH scores 79.1 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.74.424%
  • 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.73.510%
  • 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.100.08%
Granwehr GmbH scores 77.2 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.86.512%
  • 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%
Granwehr GmbH scores 85.0 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).85.022%
Granwehr GmbH scores 54.3 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 35.54.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Granwehr GmbH reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 17 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
4.6
of 5

Aggregated from 17 reviews across all connected sources

Sources
GGoogle4.617
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Büfelderstrasse 5
8370 Sirnach
Opening hours
Mon
07:30 - 12:00, 13:30 - 18:00
Tue
07:30 - 12:00, 13:30 - 18:00
Wed
07:30 - 12:00, 13:30 - 18:00
Thu
07:30 - 12:00, 13:30 - 18:00
Fri
07:30 - 12:00, 13:30 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-408.989.889
Founded
2016 · 10 years
Last commercial register change
April 1, 2016
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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