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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesAllschwilHauser, Heizung und Sanitär GmbH
Hauser, Heizung und Sanitär GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Hauser, Heizung und Sanitär GmbH provides heating and sanitary installation services, including planning, installation and maintenance of heating, gas and water systems. Services include solar systems, rainwater reuse, heat pumps and wood- and pellet-fuelled systems, serving private customers and small businesses.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered6
Heating installations
Heating installations for renovations and conversions, including installation, advice, maintenance and expert installation of heating systems.
Sanitary installations
Sanitary installations for conversions and new builds, from planning to execution through to the fit-out of bathrooms and other sanitary installations.
Gas installations
Gas installations for conversions and existing buildings, with advice, installation, maintenance and professional execution of gas installations.
Water installations
Water installations and drinking water supply, including all work related to water installations and the quality of drinking water.
Service and customer service
Customer service, advice and long-term support for heating, gas and sanitary installations.
Consulting
Consulting for heating, gas, sanitary and water installations as well as for solar systems, heat pumps and wood and pellet systems.
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3.8/5

Hauser, Heizung und Sanitär GmbH

Trust & reputation

ranQ Trust Score of Hauser, Heizung und Sanitär GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Hauser, Heizung und Sanitär GmbH scores 52.7 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.68.224%
  • 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.17.610%
  • 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.50.08%
Hauser, Heizung und Sanitär GmbH scores 83.0 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.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%
Hauser, Heizung und Sanitär 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%
Hauser, Heizung und Sanitär GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Hauser, Heizung und Sanitär 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 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Strengigartenweg 22
4123 Allschwil

At a glance

Legal form
Limited Liability Company
UID
CHE-107.536.495
Founded
1996 · 30 years
Last commercial register change
May 22, 2009
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.88.06%
  • 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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