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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesBerg TgJürg Witzig
Jürg Witzig Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Jürg Witzig is a plumbing and heating firm that plans, installs and services sanitary installations, heating systems and solar systems. Services include photovoltaic and thermal solar installations, heat pump solutions, pellet/wood/oil-gas heating systems, and plumbing services such as rainwater systems and repair/maintenance.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered7
Solar installations
Planning and installation of thermal solar and photovoltaic systems, usually for existing houses and individually tailored to different heating systems.
Heat pumps
Heat pumps in the air/water and ground/brine/water versions, for combination with existing heating systems.
Heating systems
Heating systems with wood pellets, firewood, wood chips, as well as oil and gas; advice, design and installation in the heating sector.
Sanitary installations
Plumbing and sanitary work for new builds and renovations, including planning and execution in the sanitary sector.
Water softening systems
Water softening systems for the sanitary sector.
Repair service
Repairs in the sanitary sector, as a service for existing systems and installations.
Boiler descaling
Descaling of boilers as a maintenance and service offering in the sanitary sector.
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4.2/5

Jürg Witzig

Trust & reputation

ranQ Trust Score of Jürg Witzig: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Jürg Witzig scores 78.7 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.81.624%
  • 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.58.610%
  • 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.95.08%
Jürg Witzig 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%
Jürg Witzig 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%
Jürg Witzig scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Jürg Witzig reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 9 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 9 reviews across all connected sources

Sources
GGoogle59
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Obere Kirchstrasse 8
8572 Berg Tg
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-107.094.066
Founded
1999 · 27 years
Last commercial register change
April 30, 1999
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.
67.0
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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