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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionRüdtligenGZ Holzbau AG
GZ Holzbau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of GZ Holzbau AG is the planning, development and implementation of construction and renovation services, particularly in the field of timber construction, for residential and commercial properties, as well as specialized projects such as interior finishing, renovation of listed buildings and outdoor living.

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Offering

Products & services

Industry:Interior ConstructionTimber Construction & Carpentry
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GZ Holzbau AG

✓ Offered7
Residential Construction
Planning and construction of timber houses, extensions, attic conversions, and hybrid or modular builds for private housing, using traditional carpentry and prefabricated elements.
Commercial Timber Construction
Timber buildings for businesses, workshops, storage, halls, offices, showrooms, agricultural buildings, and forecourt canopies, planned economically and flexibly.
Extensions, Renovations and Refurbishment
Timber solutions for extensions, alterations and refurbishment of existing buildings, including renovation of demanding and listed properties with technically and economically assessed solutions.
Interior Fit-out
Interior fit-out in wood for homes, commercial properties, shops, offices and practices, including substructures, lightweight partitions, wall panelling, stairs, railings, doors, parquet and reclaimed-wood floors.
Outdoor Living
Decking, refurbishment of wooden terraces, shelters, privacy screens, garden sheds, pergolas and carports for usable outdoor living areas.
Listed Building Renovation
Conversion, refurbishment and renovation of listed buildings in cooperation with heritage authorities, including preservation, reinforcement and faithful reconstruction of historic elements.
Contract Woodworking Services
Kiln drying, edge trimming, four-sided planing, cutting and other specialised wood-processing work with an in-house machine park.
Trust & reputation

ranQ Trust Score of GZ Holzbau AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

GZ Holzbau AG scores 64.7 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.72.124%
  • 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.58.610%
  • 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.50.08%
GZ Holzbau AG scores 85.5 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%
GZ Holzbau AG 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%
GZ Holzbau AG scores 13.1 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 35.13.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

GZ Holzbau AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.6 out of 5 stars from 9 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 9 reviews across all connected sources

Sources
GGoogle4.69
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Dorfstrasse 3
3422 Rüdtligen
Opening hours
Mon
07:30 - 11:45, 13:00 - 17:00
Tue
07:30 - 11:45, 13:00 - 17:00
Wed
07:30 - 11:45, 13:00 - 17:00
Thu
07:30 - 11:45, 13:00 - 17:00
Fri
07:30 - 11:45, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.060.053
Founded
2003 · 23 years
Last commercial register change
June 16, 2020
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.
100.0
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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