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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesSt. Margarethen TgZülle & Nadler AG
Zülle & Nadler AG Logo
Verified· 3 sourcesTrust Score4.3/5

Zülle & Nadler AG

Summary

About the company

The core activity of Zülle & Nadler AG is the planning, installation and maintenance of sanitary facilities and systems for private customers and industrial buildings, including renovations, new constructions and the laying of supply lines for waterworks.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered9
Sanitary Installations
Sanitary systems and installations for new builds, alterations, renovations and repairs for private individuals, commercial operations and industrial facilities.
Bathroom Renovations
Complete bathroom renovations including planning and support for alterations, as well as sanitary systems and installations in the bathroom.
Building Services
Building services solutions for new builds, alterations and renovations, with installations and systems for greater comfort and energy efficiency.
Descaling of Boilers
Descaling of boilers and related maintenance work on hot water systems, including as part of repairs and replacement solutions.
Repairs and Replacement of Water Taps
Repair and replacement of water taps as well as other repairs to systems and installations, if possible before purchasing new equipment.
Planning and Support for Alterations
Planning and support for alterations in the sanitary and building services sector, including accompanying new builds, alterations and renovations.
Sale and Replacement of Household Appliances
Sale and replacement of household appliances in connection with sanitary and building services work.
Descaling and Water Softening Systems
Installation of descaling systems or water softening systems from J.C. HOSCH AG for limescale water.
Rainwater Utilisation
Solutions for rainwater utilisation using products from Faserplast AG.
Trust & reputation

ranQ Trust Score of Zülle & Nadler AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Zülle & Nadler AG scores 83.3 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValue
Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from across all connected sources

Comparisons

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Location

Weinfelderstrasse 82
9543 St. Margarethen Tg
Opening hours
Mon
07:00 - 12:00, 13:15 - 17:15
Tue
07:00 - 12:00, 13:15 - 17:15
Wed
07:00 - 12:00, 13:15 - 17:15
Thu
07:00 - 12:00, 13:15 - 17:15
Fri
07:00 - 12:00, 13:15 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-113.284.586
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Weight
  • 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.85.424%
  • 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.68.910%
  • 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%
Zülle & Nadler AG scores 85.5 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%
  • 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.100.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
Zülle & Nadler AG 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%
Zülle & Nadler AG scores 3.4 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 35.3.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Zülle & Nadler AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 14 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. Full methodology

14 reviews
Sources
GGoogle514
★TrustpilotSoon
PProvenExpertSoon

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

Founded
2006 · 20 years
Last commercial register change
July 29, 2024
Employees
1 to 10

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