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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryCrafts & TradesHeating installerNiederuzwilH. Lenz AG
H. Lenz AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

H. Lenz AG plans, supplies, installs and maintains heating and solar systems and building technology. The company manufactures custom solar collectors and provides consulting and solutions for heating systems, heat distribution and solar energy.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Heating installerPhotovoltaics
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4.4/5

H. Lenz AG

✓ Offered5
Heating systems
Heat pumps, wood heating systems, pellet heating systems, gas and oil heating systems as well as combinations thereof; advice, planning, products, installation, service and maintenance for new builds and renovations.
Solar systems
Solar thermal and photovoltaic systems, solar collectors, solar storage tanks, combination storage tanks and solar controllers; planning, manufacturing, installation, inspection and support for systems.
Heat emitters
Surface heating systems, wall heating systems, underfloor heating systems, ceiling heating systems, heating skirting boards, radiators and floor channel heating systems; advice, planning, products, installation and service.
Help and support for systems
Initial support and fault information for photovoltaic, heating and thermal solar systems; telephone support and WhatsApp contact for problems.
Variotherm general representation
General representation in Switzerland for Variotherm heating systems; Kompakt-Fussbodenheizung, Heizleisten, ModulWand and ModulDecke as well as Systemwand and Easyflex-Wand.
Trust & reputation

ranQ Trust Score of H. Lenz AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of November 2026

H. Lenz AG scores 80.6 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.76.124%
  • 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.85.610%
  • 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.88.08%
H. Lenz AG scores 89.3 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.70.07%
H. Lenz AG scores 86.7 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).86.722%
H. Lenz AG scores 48.6 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 35.48.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

H. Lenz AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 28 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.6
of 5

Aggregated from 28 reviews across all connected sources

Sources
GGoogle4.628
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Hirzenstrasse 2
9244 Niederuzwil
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
Corporation
UID
CHE-107.448.431
Founded
1993 · 33 years
Last commercial register change
March 3, 2026
Employees
11 to 20

Active in 1 of 26 cantons

  • SGSt. Gallen
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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