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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionKöllikenMichel Holzbau GmbH
Michel Holzbau GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Michel Holzbau GmbH is the planning, consulting and execution of carpentry work, including roof renovations, roofing, facades, skylights, dormer windows, extensions, conversions, interior fittings, insulation, annexes, carports and terraces, as well as the manufacture of customer-specific joinery work.

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Offering

Products & services

Industry:Interior ConstructionTimber Construction & Carpentry
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4.1/5

Michel Holzbau GmbH

✓ Offered11
Renovations, interior fit-out and insulation
Renovations, interior fit-outs and insulation for wall openings, ceiling linings, attic conversions, new walls and floors, insulation, floor build-ups and dry construction floor heating.
Roof renovations and roofing
Roof renovations and roofing with restoration of the roof structure, insulation and roof covering, including planning, cost breakdown, building permit application, subsidies and coordination of the work.
New builds
New timber-build projects with CAD design of timber structures and prefabricated element houses, from the quotation to the complete timber element house or roof structure.
Roof extensions
Timber roof extensions to create more living space, with prefabrication of wall and roof elements and quick installation on the existing building structure.
Extensions
Extensions in timber construction with prefabrication in the workshop, simple installation and completion on the existing building.
Facades
Timber facades and ventilated facades made from solid core boards or Eternit for new builds and renovations, with horizontal or vertical cladding and various surfaces.
Dormer windows
Installation of dormer windows in connection with roof renovations, attic conversions or bathroom installations, on site or as prefabricated modules, including support from the building permit application to installation.
Roof windows
New roof windows and replacement of VELUX roof windows with heat and sun protection, proper connection to the roof layers as well as interior cladding and roof window surround.
Carports
Individually planned timber carports for one or more cars, freestanding or attached, optional with a Reduit, doors and windows.
Terraces and seating areas
Terrace grilles, seating area covers and pergolas with suitable timber species for covered and uncovered areas, including heavily used surfaces such as pool surroundings.
Customer joinery
Classic customer joinery assignments such as interior doors, entrance doors, floor coverings, interior fit-out, handrails, windows, wall coverings, material sales, cutting-to-size and repair work.
Trust & reputation

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

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Michel Holzbau GmbH scores 81.0 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.83.024%
  • 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.70.510%
  • 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.88.08%
Michel Holzbau GmbH scores 70.2 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.70.212%
  • 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.55.07%
Michel 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.
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%
Michel Holzbau GmbH scores 0.9 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 35.0.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Michel Holzbau GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.9 out of 5 stars from 15 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
4.9
of 5

Aggregated from 15 reviews across all connected sources

Sources
GGoogle4.915
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Haldenstrasse 17
5742 Kölliken
Opening hours
Mon
07:00 - 18:00
Tue
07:00 - 18:00
Wed
07:00 - 18:00
Thu
07:00 - 18:00
Fri
07:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-423.179.395
Founded
2020 · 6 years
Last commercial register change
September 17, 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.
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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