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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsRiggisbergHans Dürig AG
Hans Dürig AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Hans Dürig AG is the planning, execution and consulting of heating and sanitary systems, particularly in the field of heat pumps, solar systems, wood heating systems, oil heating systems and sanitary installations. The company also offers energy consulting and planning services and is committed to vocational training.

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Products & services

Industry:Solar & Photovoltaics
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4.2/5

Hans Dürig AG

7
Consulting, planning, installation and service for heating systems
Consulting, planning, installation and service for heating systems for new-builds and renovations; product-neutral consulting, detailed design, installation as well as maintenance and upkeep work.
Heat pumps
Heat pumps for new-builds and renovations, including ground-source, air/water and split heat pumps; heating and domestic hot water, also for single-family homes, multi-family buildings and cascade systems.
Solar systems
Thermal solar systems and photovoltaic systems; domestic hot-water preparation, support for heating, self-consumption with a heat pump, and hybrid modules (PVT).
Wood heating systems
Stove/cordwood heating systems, pellet installations and wood-chip boilers for smaller and larger outputs; storage, fuel handling, buffer tanks and heat networks.
Oil heating systems
Oil heating systems with condensing technology for renovation and replacement of existing heating plants; hydraulic integration, low return temperatures and combination with solar collectors.
Gas heating systems
Gas heating systems for existing heating plants and reference installations; carried out in connection with heating-system installation and replacement.
Plumbing installations
Plumbing installations for new-builds and conversions, bathroom refurbishments, complete conversions, water-softening systems, as well as thermal solar systems for domestic hot water.
Trust & reputation

ranQ Trust Score of Hans Dürig AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Hans Dürig AG scores 67.8 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.65.024%
  • 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.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.95.08%
Hans Dürig 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%
Hans Dürig AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
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%
Hans Dürig AG scores 45.7 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 35.45.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Hans Dürig AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.3 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
4.3
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.37
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Hintere Gasse 11
3132 Riggisberg
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:30
Tue
07:00 - 12:00, 13:00 - 17:30
Wed
07:00 - 12:00, 13:00 - 17:30
Thu
07:00 - 12:00, 13:00 - 17:30
Fri
07:00 - 12:00, 13:00 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-109.096.521
Founded
2001 · 25 years
Last commercial register change
November 11, 2011
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.
100.0
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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