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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumberNiederwil AgD. Küng Haustechnik
D. Küng Haustechnik Logo
Verified· 3 sourcesTrust Score
Summary

About the company

D. Küng Haustechnik plans and installs plumbing, heating and ventilation systems, and provides maintenance and repair services. Its services include bathroom renovations, heat pumps, wood and pellet heating systems, and controlled residential ventilation.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Plumber
✓ Offered3
Plumbing
Plumbing installations, bathroom renovations and refurbishments, new builds, maintenance and inspection of sanitary systems, service and repairs, boiler maintenance, water softening systems, rainwater harvesting, equipment replacement.
Heating
Heating system planning and coordination, installation of air-to-water, brine-to-water and water-to-water heat pumps, wood-log, wood-chip and pellet heating systems, refurbishment of heating boilers, maintenance work, fault rectification.
Ventilation
Controlled residential ventilation, planning and coordination of ventilation projects, maintenance and repairs, maintenance of ventilation systems, new builds and renovations.
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4.0/5

D. Küng Haustechnik

Trust & reputation

ranQ Trust Score of D. Küng Haustechnik: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of November 2026

D. Küng Haustechnik scores 71.6 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.72.924%
  • 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.63.210%
  • 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.78.08%
D. Küng Haustechnik scores 65.7 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.70.212%
  • 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%
D. Küng Haustechnik 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%
D. Küng Haustechnik scores 1.7 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 35.1.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

D. Küng Haustechnik reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.6 out of 5 stars from 11 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 11 reviews across all connected sources

Sources
GGoogle4.611
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Schänisweg 4
5524 Niederwil Ag
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-191.043.015
Founded
2020 · 6 years
Last commercial register change
December 21, 2020
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • AGNiederwil (AG)
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.
67.0
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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