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

About the company

Niggli Söhne Haustechnik AG is a building services company that designs, installs and services heating, ventilation, sanitary and solar systems. Offerings include new construction, renovations, maintenance and an on-call emergency service.

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Products & services

Industry:Plumbing & Building Services
✓ Offered
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4.0/5

Niggli Söhne Haustechnik AG

6
Sanitary installations
Planning and installation of new systems, optimisation of existing systems, modern fittings, energy-efficient hot-water systems and customised bathroom designs.
Heating installations
Advice, planning and installation of heating systems, including heat pumps and fossil-fuel heating systems, tailored to building size, location and individual needs.
Service work
Maintenance, repairs and fault rectification for heating and ventilation systems, as well as inspections of existing installations.
Thermal solar systems
Advice, design and installation of thermal solar collectors for domestic hot-water production and to support the heating system.
Ventilation systems
Planning and installation of ventilation systems, tailored to the property and the customer’s requirements.
New-build and renovation work
Specialist experts for sanitary and heating systems for new builds and renovations; support from planning through to implementation.
Trust & reputation

ranQ Trust Score of Niggli Söhne Haustechnik AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Niggli Söhne Haustechnik AG scores 66.3 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.69.424%
  • 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.55.910%
  • 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.70.08%
Niggli Söhne Haustechnik AG scores 70.4 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.64.612%
  • 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%
Niggli Söhne 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.
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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%
Niggli Söhne Haustechnik AG scores 34.3 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 35.34.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Niggli Söhne Haustechnik AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.5 out of 5 stars from 8 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
4.5
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle4.58
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Fideriserstrasse 16
7235 Fideris
Opening hours
Mon
07:00 - 12:00, 13:30 - 18:00
Tue
07:00 - 12:00, 13:30 - 18:00
Wed
07:00 - 12:00, 13:30 - 18:00
Thu
07:00 - 12:00, 13:30 - 18:00
Fri
07:00 - 12:00, 13:30 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-411.517.491
Founded
2021 · 5 years
Last commercial register change
December 27, 2021
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.
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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