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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,888 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesRubigenBaumgartner + Strahm Haustechniker AG
Baumgartner + Strahm Haustechniker AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Baumgartner + Strahm Haustechniker AG is a company specialising in sanitary, heating and solar technology. It provides consulting, planning, installation and execution for new builds, conversions, renovations and system maintenance.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered3
Sanitary technology
Complete solutions for plumbing systems, bathroom and kitchen planning, new builds, renovation, refurbishment of multi-family houses, repairs as well as water treatment and descaling.
Heating technology
Planning, project preparation, tendering, energy performance documentation and specialist site supervision for heating projects; installation, boiler refurbishments, heat pumps, solar systems, WRG systems, conversions and repairs.
Solar technology
Planning, installation and maintenance of solar systems with custom sizing, professional installation, regular service and technical components for higher energy yield.
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4.2/5

Baumgartner + Strahm Haustechniker AG

Trust & reputation

ranQ Trust Score of Baumgartner + Strahm Haustechniker AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Baumgartner + Strahm Haustechniker AG scores 74.7 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.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.88.08%
Baumgartner + Strahm Haustechniker AG scores 85.5 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.55.07%
Baumgartner + Strahm Haustechniker 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%
Baumgartner + Strahm Haustechniker AG scores 2.0 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 35.2.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Baumgartner + Strahm Haustechniker AG reaches a ranQ Trust Score of 4.2 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 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 7 reviews across all connected sources

Sources
GGoogle57
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Thunstrasse 25
3113 Rubigen
Opening hours
Mon
07:30 - 17:30
Tue
07:30 - 17:30
Wed
07:30 - 17:30
Thu
07:30 - 17:30
Fri
07:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-109.517.534
Founded
2002 · 24 years
Last commercial register change
July 4, 2022
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.100.06%
  • 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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