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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding contractorStein Am RheinBaugeschäft Wagner AG
Baugeschäft Wagner AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Baugeschäft Wagner AG is a construction firm for building and civil engineering that provides services from planning to turnkey handover, including new construction, renovations and conversions, client masonry work, concrete drilling and milling, and craftwork in heritage conservation.

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Service area

Offering

Products & services

Industry:Building contractor
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4.3/5

Baugeschäft Wagner AG

✓ Offered6
New builds
Construction work from planning to turnkey delivery for single-family and multi-family homes, industrial and commercial buildings, and public buildings.
Conversions / renovations
Conversions, renovations and building refurbishment from consultation to execution, including apartment conversions and modern interior design.
Masonry work
Masonry services for repairs, façade refurbishments, bathroom and kitchen conversions, fireplace refurbishments, thermal insulation, landscaping work, and plastering work.
Craft work in heritage conservation
Restoration, conversion and change of use of listed buildings using historic building materials, modern techniques, and advice on refurbishment and conservation concepts.
Concrete cutting, drilling and milling
Concrete cutting, core drilling, concrete separation work, concrete grinding, and surface treatment using diamond technology for refurbishments, conversions and dismantling.
Scaffolding work
Scaffolding for our own construction projects, including delivery, erection and dismantling of the scaffolds, as well as consultation and flexible rental periods.
Trust & reputation

ranQ Trust Score of Baugeschäft Wagner AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of November 2026

Baugeschäft Wagner AG scores 72.8 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.78.08%
Baugeschäft Wagner AG scores 92.3 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.82.07%
Baugeschäft Wagner AG scores 86.7 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).86.722%
Baugeschäft Wagner 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Baugeschäft Wagner AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very 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 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 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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Comparisons

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Location

Bahnhofstrasse 18
8260 Stein Am Rhein
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:30
Tue
07:00 - 12:00, 13:00 - 17:30
Wed
07:00 - 12:00, 13:00 - 17:30
Thu
07:00 - 12:00, 13:00 - 17:30
Fri
07:00 - 12:00, 13:00 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.928.042
Founded
1974 · 52 years
Last commercial register change
March 4, 2020
Employees
21 to 50

Active in 1 of 26 cantons

  • SHSchaffhausen
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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