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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureWindow constructionZurichFix Service GmbH
Fix Service GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Fix Service GmbH repairs, maintains and upgrades windows and doors, and supplies and installs new window and door systems. Its services and products also include consultation, insect screens, pleated blinds and roller shutters.

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Presence

Service area

Offering

Products & services

Industry:Window construction
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3.8/5

Fix Service GmbH

Blinds installation
✓ Offered11
Window and door service
Repairs, maintenance, upgrades and replacement of windows and doors; including seals, hardware, glazing, silicone joints and mechanical adjustments.
Modernising windows and doors
Modernisation of existing wooden windows and doors with new glazing, an additional sealing level, fittings, wood treatment, and improvement of energy efficiency and burglary protection.
New windows and doors
Supply and installation of new windows and doors made of plastic, wood-wood and wood-aluminium; with advice when repairs are no longer practical.
Front doors
Front doors for residential buildings, including doors made of wood and with glazing, matched to the property and the desired design.
Insect protection
Insect protection solutions for window openings; custom-made and also suitable for windows, sliding doors and front doors.
Pleated blinds
Inside-mounted pleated blinds for privacy and glare protection, fitted to the window and suitable as an addition to living and work spaces.
Roller shutters
Custom-made roller shutters for new buildings and existing properties, made in Switzerland and suitable for different projects.
Rolling gates
Rolling gates for commercial and garages as a protective and access solution for a variety of applications.
Window sills and window ledges
Window sills and window ledges, including renovated versions, as an optical and functional enhancement for window areas.
Cat and dog doors
Cat and dog flaps for windows, sliding doors and front doors, suitable for different installation situations.
Consulting
Advice on energy-related issues, customer concerns and the operation of products such as complex lift-and-slide systems.
Trust & reputation

ranQ Trust Score of Fix Service GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of November 2026

Fix Service GmbH scores 65.0 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.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.78.08%
Fix Service GmbH scores 61.5 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.50.012%
  • 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%
Fix Service GmbH scores 86.7 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).86.722%
Fix Service GmbH scores 4.0 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 35.4.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Fix Service GmbH reaches a ranQ Trust Score of 3.8 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 November 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.

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Location

Sihlquai 131
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
Limited Liability Company
UID
CHE-460.767.892
Founded
2023 · 3 years
Last commercial register change
October 23, 2026
Employees
1 to 10

Active in 1 of 26 cantons

  • ZHZurich
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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