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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureGeneral ContractorsWinterthurBW Generalbau AG
BW Generalbau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

BW Generalbau AG is a total and general contractor that plans and executes new construction, conversion and renovation projects. The company also provides project development, construction management, site supervision and client advisory services.

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Offering

Products & services

Industry:General ContractorsReal Estate Project Development
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BW Generalbau AG

✓ Offered6
Project development
Analysis of goals, requirements and feasibility; site clarifications, market potential, building analyses, building valuations, profitability analyses, use concepts, redevelopment concepts and project optimisation.
Total contracting
Planning and execution of the entire construction project from project design to completion; including contracting partners for planners, cost and schedule reliability, and overall responsibility.
General contracting
Responsibility for the entire execution of build-ready projects, from the cost estimate through bid tendering to key handover; coordination of the contractors and cost, schedule and quality control.
Construction management
Steering and support for complex construction projects; project design, cost estimation, tendering and award, construction supervision, final billing and management of warranty work.
Construction supervision
Coordination and control during construction; tendering and submissions, provision of approvals and plans, coordination of contractors, and monitoring of quality, deadlines and costs.
Owner advisory
Independent advice in project development, planning and implementation; plausibility checks, decision-making foundations, representation of interests and technical relief for clients.
Trust & reputation

ranQ Trust Score of BW Generalbau AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

BW Generalbau AG scores 49.5 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.38.924%
  • 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.58.610%
  • 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%
BW Generalbau AG scores 89.3 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.70.07%
BW Generalbau AG 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%
BW Generalbau AG scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

BW Generalbau AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 3.2 out of 5 stars from 9 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
3.2
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle3.29
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Wülflingerstrasse 285
8408 Winterthur
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:00
Tue
07:30 - 12:00, 13:30 - 17:00
Wed
07:30 - 12:00, 13:30 - 17:00
Thu
07:30 - 12:00, 13:30 - 17:00
Fri
07:30 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.631.174
Founded
1990 · 36 years
Last commercial register change
June 18, 2026
Employees
11 to 20
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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