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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryRetail & CommerceAuto Repair ShopsSchlierenGarage Mario Quarta GmbH
Garage Mario Quarta GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Garage Quarta is car repair and maintenance, including diagnosis, inspection, customization, repairs and routine maintenance of vehicles of all kinds, with a particular focus on classic cars.

AI-generated
Offering

Products & services

Industry:Auto Repair Shops
✓ Offered7
Car repairs
Car repair services for all makes and models, including oil service, engine repairs, brake repairs, air-conditioning repairs, and repairs for minor accidents.
Routine vehicle maintenance
Routine vehicle maintenance with oil and filter changes, brake changes, battery checks, spark plug changes, tyre and suspension checks, as well as other service work.
Vehicle diagnostics
Vehicle diagnostics with fault-code readout, as well as checks of the exhaust system, braking system, air-conditioning, lighting, gearbox, suspension, and safety systems.
Vehicle inspection
Mandatory regular vehicle inspection to ensure safety and compliance with standards, including checks of fluids, tyres, brakes, lighting, steering, and the exhaust system.
Vehicle personalisation
Vehicle personalisation and modifications, including the installation of accessories such as LED headlights, navigation systems, audio systems, and lift kits.
Classic vehicle restoration
Restoration of classic cars and classic motorcycles, including full or conservative restoration, part restoration, partial or complete repainting, and rebuilding of replacement parts.
Winter tyre change
Winter tyre change with professional fitting and preparation of the vehicle for the cold season.
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4.4/5

Garage Mario Quarta GmbH

Trust & reputation

ranQ Trust Score of Garage Mario Quarta GmbH: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

Garage Mario Quarta GmbH scores 91.4 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.89.024%
  • 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.94.410%
  • 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.95.08%
Garage Mario Quarta 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%
Garage Mario Quarta 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%
Garage Mario Quarta GmbH scores 5.1 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 35.5.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Garage Mario Quarta GmbH reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.9 out of 5 stars from 40 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
4.9
of 5

Aggregated from 40 reviews across all connected sources

Sources
GGoogle4.940
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Ballonstrasse 20
8952 Schlieren
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 - 17:00
Sat
09:00 - 12:00
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-112.232.090
Founded
2005 · 21 years
Last commercial register change
May 3, 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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