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

About the company

The core activity of Künzi Haustechnik AG encompasses the planning, installation, maintenance and repair of building technology systems, particularly in the areas of: * Heating (heating installations, boilers, heat pumps) * Sanitary (sanitary facilities, bathroom renovations, washroom equipment) * Solar systems (electric energy generation through solar power) * Room air technology (room ventilation, Minergie houses) The company also offers engineering services, consulting and service in these areas.

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Offering

Products & services

Industry:Plumbing & Building ServicesSpecialized Construction Installations
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4.4/5

Künzi Haustechnik AG

✓ Offered6
Heating
Heating installations and renovations with radiator heating, underfloor heating, heat pumps, oil, gas and wood heating systems, as well as emergency heating units and district heating pipework.
Plumbing
Plumbing and sanitary installations for drinking and wastewater, water supply during conversions, as well as residential, industrial and commercial buildings with appliance, pipework and drainage works.
Service
Repair service with 24-hour emergency service, remedying leaking taps, flush tanks, WC units, blocked drains, descaling of boilers and frozen pipes.
Planning and consulting
Planning and consulting for water and heating technology with preliminary project, cost estimate, scheduling, permits, calls for tenders, quotations and expert reports.
Solar thermal systems
Thermal solar systems for using solar heat for water and living spaces, including solar collectors for heat generation.
Air renewal systems
Air renewal systems for Minergie houses with continuous air exchange, extraction of odours and moist air, as well as supply of fresh air.
Trust & reputation

ranQ Trust Score of Künzi Haustechnik AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

Künzi Haustechnik AG scores 82.5 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.84.824%
  • 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.67.110%
  • 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%
Künzi Haustechnik 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%
Künzi Haustechnik 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%
Künzi Haustechnik AG scores 9.4 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 35.9.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Künzi Haustechnik AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 13 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 13 reviews across all connected sources

Sources
GGoogle513
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Oberdorfstrasse 5
9548 Matzingen
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.743.608
Founded
1991 · 35 years
Last commercial register change
April 23, 2025
Employees
11 to 20
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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