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

About the company

Hasi Heizungen GmbH provides planning, installation and maintenance of heating and sanitary systems and carries out diamond core drilling.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered8
Heating system planning and installation
Consulting, planning and execution of heating systems for new builds, renovations and modernisations; including commissioning, coordination with other trades and documentation.
Maintenance and repairs of heating systems
Maintenance and value-preservation work on heating systems; function and leak checks, replacement of valves and pumps, system readjustment and fault troubleshooting.
Heat pumps and solar thermal
Consulting, planning and execution of heat pump and solar thermal systems; use of air, ground or groundwater, as well as maintenance of existing solar thermal installations.
Sanitary planning and installation
Consulting, planning and execution of sanitary facilities; water supply and drainage pipework, installation of appliances and assembly of sanitary components in new builds.
Bathroom renovation and bathroom planning
Bathroom planning from the idea to detailed execution planning, as well as implementation of bathroom renovations; selection and placement of bathtub, fittings and other fixtures.
Maintenance and repairs of sanitary installations
Maintenance of sanitary installations; functional checks, descaling, clearing blockages, replacing defective components and ensuring drinking water hygiene.
Heat pump water heater
On-site consultation on heat pump water heaters for hot water generation; use of the energy stored in the air as an alternative to the conventional electric boiler.
Diamond drilling
Core drilling in concrete, reinforced concrete, masonry and natural stone; subsequent openings for pipework with a diameter of 40 mm to 160 mm.
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3.8/5

Hasi Heizungen GmbH

Trust & reputation

ranQ Trust Score of Hasi Heizungen GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Hasi Heizungen GmbH scores 60.4 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.57.924%
  • 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%
Hasi Heizungen GmbH scores 67.8 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.64.612%
  • 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%
Hasi Heizungen 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%
Hasi Heizungen GmbH scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Hasi Heizungen GmbH reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 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
4
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle49
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Seestrasse 38
8596 Scherzingen
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-360.303.049
Founded
2021 · 5 years
Last commercial register change
September 28, 2021
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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