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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesRoofingSchleitheimThomas Bollinger Bauspenglerei - Sanitäre Anlagen GmbH
Thomas Bollinger Bauspenglerei - Sanitäre Anlagen GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company offers a wide range of services in the fields of construction and building technology, including: sanitary and plumbing work, roofing and roofing work, carpentry and facade construction, construction coordination and construction management, installation of solar systems, and emergency and repair services for sanitary and plumbing work. Thus, the company provides a comprehensive range of services for the construction and maintenance of buildings.

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Offering

Products & services

Industry:RoofingSheet Metal Work
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4.2/5

Thomas Bollinger Bauspenglerei - Sanitäre Anlagen GmbH

✓ Offered7
Plumbing
Sanitary installations and service for new-build projects, conversions and industrial applications; support in the event of water pipe bursts, blocked toilets and other sanitary emergencies.
Sheet metal work
Sheet metal work for buildings, including sheet metal works and façade works; complemented by emergency roof service for leaky roof areas.
Roofing
Roofing work for pitched and flat roofs, including repairs and roof service for leaky roof areas.
Solar systems
Advice and installation of solar systems for renewable energy on buildings.
Facades
Facade construction and façade work in the building envelope sector, complemented by sheet metal work from the sheet metal shop.
Joinery
Joinery work from planning to professional installation, tailored to the respective needs.
Construction coordination
Coordination of bathroom and roof projects, planning and management of all trades involved.
Trust & reputation

ranQ Trust Score of Thomas Bollinger Bauspenglerei - Sanitäre Anlagen GmbH: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

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Data basis 96% · As of October 2026

Thomas Bollinger Bauspenglerei - Sanitäre Anlagen GmbH scores 67.9 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.70.024%
  • 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.61.010%
  • 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%
Thomas Bollinger Bauspenglerei - Sanitäre Anlagen GmbH scores 86.7 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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%
Thomas Bollinger Bauspenglerei - Sanitäre Anlagen 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%
Thomas Bollinger Bauspenglerei - Sanitäre Anlagen GmbH scores 54.3 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.54.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Thomas Bollinger Bauspenglerei - Sanitäre Anlagen GmbH reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.5 out of 5 stars from 10 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
4.5
of 5

Aggregated from 10 reviews across all connected sources

Sources
GGoogle4.510
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Geerenweg 1
8226 Schleitheim
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-109.611.475
Founded
2002 · 24 years
Last commercial register change
December 19, 2025
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.88.06%
  • 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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