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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionRohrbachLanz Holzbau AG
Lanz Holzbau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Lanz Holzbau AG is the construction and interior finishing of wooden buildings, including wood structures, wood construction planning, exterior cladding, interior finishing, thermal insulation, flooring, stairs, doors, windows and skylights, as well as the execution of repairs and renovations of existing buildings.

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Offering

Products & services

Industry:Interior ConstructionTimber Construction & Carpentry
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3.9/5

Lanz Holzbau AG

✓ Offered9
Timber structures
Timber structures for new builds, extensions and storey additions; element construction, carports, shelters and garden houses, as well as renovations, listed-building conservation, fire-retardant refurbishment and roof refurbishments.
Interior fit-out
Interior fit-out with solid-wood and wood-based board cladding, panelling, dry-wall underfloors, partition walls, cupboards and cloakrooms, as well as solid-wood furniture and tables.
Timber construction planning
Advisory services for new builds, conversions and extensions, structural design calculations for timber structures, detailed planning, site management for smaller projects, and planning for conversions and extensions.
Thermal insulation / Insulations
Thermal insulation for new builds and conversions, roof refurbishments, screed floors, basement ceilings and facade refurbishments; insulation with stone wool, wood-fibre boards, cellulose loose-fill or sheep’s wool.
Doors / windows / gates and roof windows
Doors, sliding doors, entrance doors, windows in wood, wood-metal or plastic, gates made to measure, and Velux roof windows with installation and replacement.
External cladding
External cladding with timber façades, solid-core panels, fibre-cement boards, balcony cladding, privacy screens and coverings on bargeboards and fascia boards.
Staircases
Staircase planning, fabrication and installation of indoor and outdoor staircases, lift staircases for the attic area, and gallery staircases including railings and handrails.
Wood floor coverings
Wood floor coverings, solidly glued or laid floating; in addition, laminate, vinyl and cork floors in various designs.
Repairs and refurbishments
Repairs and refurbishments for marten damage, water damage, storm damage to the roof and fire renovation work.
Trust & reputation

ranQ Trust Score of Lanz Holzbau AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Lanz Holzbau AG scores 56.5 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.68.224%
  • 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.17.610%
  • 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.70.08%
Lanz Holzbau AG scores 81.1 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.89.612%
  • 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%
Lanz 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%
Lanz Holzbau AG scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Lanz Holzbau AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Ahornweg 16
4938 Rohrbach
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:30
Tue
07:30 - 12:00, 13:30 - 17:30
Wed
07:30 - 12:00, 13:30 - 17:30
Thu
07:30 - 12:00, 13:30 - 17:30
Fri
07:30 - 12:00, 13:30 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-144.595.349
Founded
2015 · 11 years
Last commercial register change
March 29, 2021
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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