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

About the company

The core activity of Linz Holzbau GmbH is timber construction, particularly the planning and execution of timber structures, carpentry, roofing, staircase construction, interior finishing, facades, roof windows, roof dormers, energy-efficient building renovation and 3D planning.

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Products & services

Industry:Interior ConstructionTimber Construction & Carpentry
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4.1/5

Linz Holzbau GmbH

✓ Offered11
Carpentry and timber construction
Timber structures, roof structures, timber frame constructions and solid timber construction for new builds, conversions and renovations; professional execution of load-bearing timber structures.
Roofing
Roof covering with clay tiles, slate boards and corrugated panels; work for new builds, conversions and renovations around the building envelope.
Wooden stairs and railings
Exterior stairs, straight stairs, quarter- and half-turn stairs, stair extensions, attic stairs, as well as wooden railings, wooden handrails and custom stairs to customer specification.
Interior fit-out
Ceilings and walls in wood, as well as interior doors, sliding doors, entrance doors and door repairs for renovations and new interior spaces.
Facades
Timber facades, substructures, thermal insulation, surface treatments, solid core boards, fibre cement boards and thermal insulation rendering systems for the building envelope.
Roof windows
Installation and replacement of roof windows, top-hinged roof windows, folding roof windows and roof window accessories; advice as a Velux specialist partner.
Roof dormers
Custom-made roof dormers such as gabled dormers, shed dormers and flat-roof dormers for more light, air and volume in the attic space.
Terrace flooring
Laying terrace wood in larch, Douglas fir, acacia, IPE, thermowoods and solid core boards for pools, gardens and terraces.
Wood flooring for indoor use
Installation of parquet wood flooring, laminate flooring, cork flooring and linoleum flooring for residential and commercial interior spaces.
Energy-efficient building refurbishment
Insulation of the building envelope as part of renovations to improve energy efficiency and reduce energy consumption.
3D planning
3D models of roof, house or staircase during the planning phase using 3D CAD technology to visualize the project.
Trust & reputation

ranQ Trust Score of Linz Holzbau GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Linz Holzbau GmbH scores 71.3 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.79.424%
  • 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.52.910%
  • 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.70.08%
Linz Holzbau 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%
Linz Holzbau GmbH scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Linz Holzbau GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Linz Holzbau 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 7 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 7 reviews across all connected sources

Sources
GGoogle57
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Wahlenstrasse 32
4242 Laufen
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-107.639.445
Founded
2001 · 25 years
Last commercial register change
March 24, 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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