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

About the company

The core activity of Koni Wyrsch Ltd. is the planning, installation, maintenance and repair of sanitary facilities, heating systems, ventilation systems, solar systems and building technology for private customers, architects and builders in the canton of Uri. This includes in particular: Sanitary installations (kitchen, bathroom, cellar), heating installations (heat pumps, solar systems, oil and wood heating systems), ventilation systems (controlled residential ventilation, central vacuum systems), solar systems for hot water preparation, service and maintenance work on sanitary facilities and heating systems, emergency service for urgent matters such as clogged pipes, pipe breaks or heating system failures.

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Products & services

Industry:Plumbing & Building Services
✓ Offered
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3.9/5

Koni Wyrsch Sanitär - Heizungen

8
Plumbing installations
Plumbing installations for new builds, conversions and renovations; installations for kitchen and bathroom, laundry facilities, descaling of boilers as well as shower WC (AquaClean).
Heating systems
Planning, construction and maintenance of heating systems; radiators, wall convectors/heating skirting, floor heating, oil and wood heating, heat pumps and solar systems.
Ventilation systems
Planning, construction and maintenance of ventilation systems; controlled home ventilation and central vacuum systems.
Service and maintenance work
Service, maintenance and inspection for sanitary installations and heating systems; drain cleaning, pipe inspections, hygiene service and testing of drinking-water pipes.
Planning and consulting
Planning and consulting for sanitary, heating and ventilation projects; support from planning through execution up to handover and commissioning.
Building services
Building services for single- and two-family houses, in addition to sanitary, heating and ventilation services.
Solar systems
Solar systems for domestic hot water preparation as well as in conjunction with heating systems.
Emergency service
Emergency service for urgent cases such as blocked pipes, pipe bursts and heating failures.
Trust & reputation

ranQ Trust Score of Koni Wyrsch Sanitär - Heizungen: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Koni Wyrsch Sanitär - Heizungen scores 56.8 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.73.124%
  • 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.35.310%
  • 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.35.08%
Koni Wyrsch Sanitär - Heizungen scores 78.5 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%
Koni Wyrsch Sanitär - Heizungen 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%
Koni Wyrsch Sanitär - Heizungen 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

Koni Wyrsch Sanitär - Heizungen reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 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 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Stämpfig 3
6468 Attinghausen

At a glance

Legal form
Sole proprietorship
UID
CHE-103.110.542
Founded
1984 · 42 years
Last commercial register change
June 18, 2009
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.67.06%
  • 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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