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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureGeneral ContractorsWallisellenBad Atelier Hollenstein GmbH
Bad Atelier Hollenstein GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company Bad Atelier Hollenstein GmbH is a service provider specializing in the planning and organization of bathroom constructions. The core activity of the company is to support builders, architects, and sanitary installers in the planning, organization, and execution of bathroom renovations and refurbishments. This includes consulting on the selection of sanitary appliances, creating design proposals and concept solutions, coordinating construction managers, and organizing suppliers and craftsmen. The company offers a comprehensive solution for the entire bathroom renovation process and charges its work on an hourly basis, without selling its own products.

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Products & services

Industry:General Contractors
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3.8/5

Bad Atelier Hollenstein GmbH

✓ Offered9
Bathroom planning and design concept
Planning and organisation of bathroom construction, concept development, initial consultation, budgeting and detailed planning for conversions or new builds of bathrooms and wet rooms.
Bathroom conversion and refurbishment
Support for bathroom conversions, full and partial refurbishments from idea development and construction planning through acceptance of the completed bathroom.
Fixture selection and product consultation
Selection of sanitary fixtures and other products, product consultation in showrooms, preparation of fixture schedules, quotations and budgeting.
Construction management and coordination
Coordination of suppliers, tradespeople and other parties, monitoring the construction programme and supporting the bathroom project through to completion.
Client representation and buyer support
Representation of the clients, support for buyers in multi-family buildings and guidance through the selection process, feasibility checks and overall coordination.
Contractor sourcing and quotation comparison
Tendering of jobs, obtaining several contractor quotations, comparing offers and cost optimisation for bathroom construction.
Assessments and defect rectification
Assessment of defects and faults, solution proposals, professional defect rectification as well as coordination of the required tradespeople and materials.
Insurance claims and damage handling
Preparation of cost estimates for insurers and handling of bathroom damage together with the customer and the insurer.
Age-friendly living and AI equipment
Advice on age-friendly bathrooms in accordance with SIA 500 and solutions for barrier-free, AI-compliant living in the bathroom.
Trust & reputation

ranQ Trust Score of Bad Atelier Hollenstein GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Bad Atelier Hollenstein GmbH scores 59.7 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.73.124%
  • 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.35.310%
  • 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.50.08%
Bad Atelier Hollenstein GmbH scores 65.0 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.58.012%
  • 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.55.07%
Bad Atelier Hollenstein GmbH 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%
Bad Atelier Hollenstein GmbH scores 6.0 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 35.6.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bad Atelier Hollenstein GmbH reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 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 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Widenholzstrasse 1
8304 Wallisellen
Opening hours
Mon
09:00 - 17:00
Tue
09:00 - 17:00
Wed
09:00 - 17:00
Thu
09:00 - 17:00
Fri
09:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-470.876.838
Founded
2022 · 4 years
Last commercial register change
May 8, 2025
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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