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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionWinznauGrütter Innenausbau GmbH
Grütter Innenausbau GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Grütter Innenausbau GmbH is a carpentry and interior-construction firm that designs, manufactures and installs kitchens, bespoke furniture, doors, windows and floor coverings. Its services also include renovations and restorations, maintenance and service work, project management and coordination, lock and access systems, emergency glazing and insect and sun protection.

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Offering

Products & services

Industry:Interior Construction
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4.1/5

Grütter Innenausbau GmbH

✓ Offered8
Interior fit-out
Interior fit-out for kitchens, cupboards, custom furniture, bathrooms, floor coverings, doors and windows, plus fire and burglary protection, conversions and renovations.
Conversions and renovations
Conversions and renovations with rough and detailed planning, organisation, site management, coordination, scheduling, cost estimates, plus refurbishment of old buildings and redesigns.
Joinery and custom furniture
Joinery with workshop work from cutting to surface finishing, plus custom furniture, sideboards, dining tables, coffee tables, reception counters, desks, wall shelves, bookcases, mirrors and beds.
Maintenance and service work
Service work for windows, doors, kitchens and cupboards, including maintenance, adjustment, hinge and joint replacement, fittings and surface treatment.
Glass breakage and burglary damage service
Immediate measures after glass breakage or burglary, with emergency glazing, temporary doors and security measures, damage assessment, insurance coordination, and replacement of glass, doors, elements and fittings.
Locking and access systems
Locking and access systems with round and profile cylinders, KABA and SEA, simple and complex systems, keyed-alike locking and Glutz E-Access support partner services.
Insect and sun protection
Insect and sun protection with roller blinds, tension frames, swing and sliding doors, plus pleated blinds and sun-protection glazing, roller blinds and pleated blinds.
Restoration work
Restoration of solid-wood and veneered furniture, tables, chairs, cupboards, antique furniture, and wooden doors and windows, including refurbishing, repairs and surface treatments.
Trust & reputation

ranQ Trust Score of Grütter Innenausbau GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Grütter Innenausbau GmbH scores 74.2 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.80.624%
  • 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.55.910%
  • 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%
Grütter Innenausbau GmbH scores 77.8 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.79.212%
  • 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.70.07%
Grütter Innenausbau 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%
Grütter Innenausbau GmbH scores 4.9 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 35.4.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Grütter Innenausbau GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 8 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 8 reviews across all connected sources

Sources
GGoogle58
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Kleinfeldstrasse 52
4652 Winznau
Opening hours
Mon
07:15 - 12:00, 13:15 - 17:15
Tue
07:15 - 12:00, 13:15 - 17:15
Wed
07:15 - 12:00, 13:15 - 17:15
Thu
07:15 - 12:00, 13:15 - 17:15
Fri
07:15 - 12:00, 13:15 - 16:45
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-242.220.850
Founded
2018 · 8 years
Last commercial register change
December 6, 2018
Employees
11 to 20
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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