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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior fit-outMellingenConrad Holzbau AG
Conrad Holzbau AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Conrad Holzbau AG plans and builds buildings for residential, industrial, agricultural and public use. Its services include timber and element construction, conversions and renovations, interior fit-outs, and solar solutions for roofs and façades.

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Service area

Offering

Products & services

Industry:Interior fit-outRenovation
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4.1/5

Conrad Holzbau AG

Timber construction
Photovoltaics
✓ Offered4
Timber and prefabricated construction
Traditional timber construction, prefabricated element construction, timber Minergie construction, wall and ceiling systems, as well as roof elements and hybrid technology for single-family homes, multi-family houses, commercial buildings, halls, extensions and storey additions.
Remodeling and renovation
Additions and renovations, extensions, attic conversions, pitched and flat roofs, dormers and roof windows, timber and Eternit façades, as well as maintenance, repairs, dismantling and demolition.
Interior fit-out
Staircases and floors, ceilings, doors and windows, as well as kitchens and furniture for living and working spaces—planned and implemented as custom-made solutions.
Solar
Solar solutions for roofs and façades, site analysis, in-roof and on-roof systems, photovoltaic panel and electrical installation, advice on energy storage and roof and façade inspection.
Trust & reputation

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

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of November 2026

Conrad Holzbau AG scores 69.5 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.76.724%
  • 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.45.610%
  • 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.78.08%
Conrad Holzbau AG scores 87.8 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.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.82.07%
Conrad Holzbau AG scores 88.3 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).88.322%
Conrad Holzbau AG scores 28.6 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 35.57.14%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

Conrad Holzbau AG 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 5 customer reviews. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

January 31, 2021Media
Nach Schliessung der Traditionsfirma: Kader gründet Unternehmen
badenertagblatt.ch
August 28, 2020Media
Die Conrad Holzbau AG fördert Mitarbeiter intensiv
reussbote.ch

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Location

Bruggerstrasse 46
5507 Mellingen
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
Corporation
UID
CHE-334.319.487
Founded
2015 · 11 years
Last commercial register change
June 21, 2022
Employees
21 to 50

Active in 1 of 26 cantons

  • AGAargau
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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