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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceZurichGKH Karl Hubli
GKH Karl Hubli Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of GKH-Gebäudeunterhalt is the technical maintenance and servicing of buildings, including regular inspection and maintenance of technical equipment such as ventilation systems, heating systems, lighting and building envelope, as well as the rapid resolution of damages and disruptions.

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Offering

Products & services

Industry:Building Maintenance
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4.0/5

GKH Karl Hubli

Technical building maintenance
Technical maintenance of properties, including servicing of garage doors, ventilation systems and door closers, lighting inspection and replacement, as well as coordination of minor repairs.
Damage remediation for the building envelope
Rapid handling of water and moisture damage to the building envelope, as well as further repairs to safeguard the structural condition.
Heating maintenance and fault management
Maintenance and fault management of ground-source heating systems with boreholes for ongoing operation and to preserve the property’s value.
Plastering
Plastering work on the building envelope, as part of the services for renovation and maintenance.
Fire protection
Fire protection services related to building maintenance and the building envelope.
Ventilation systems
Maintenance and support of ventilation systems and other technical installations in the building.
Roof drains
Maintenance and support of roof drains as part of technical building maintenance work.
Lighting
Inspection and replacement of lamps and LEDs as part of technical building maintenance.
PV systems
Care and maintenance of PV systems as part of technical building operations.
Trust & reputation

ranQ Trust Score of GKH Karl Hubli: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

GKH Karl Hubli scores 68.0 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.76.724%
  • 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.70.08%
GKH Karl Hubli scores 78.5 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%
GKH Karl Hubli 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%
GKH Karl Hubli scores 0.3 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 35.0.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

GKH Karl Hubli reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 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
5
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Limmatstrasse 118
8005 Zurich
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-108.455.965
Founded
1995 · 31 years
Last commercial register change
December 6, 2024
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.
67.0
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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