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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumberGossau SgSchwizer Haustechnik AG
Schwizer Haustechnik AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Schwizer Haustechnik AG plans and installs plumbing, heating and ventilation systems, and designs and carries out bathroom renovations. Its services also include building-services planning and maintenance and emergency support for plumbing and heating systems.

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Service area

Offering

Products & services

Industry:Plumber
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Schwizer Haustechnik AG

✓ Offered5
Bathroom renovation
Planning and implementation of individual private bathrooms as a complete solution, including bathroom architecture, coordination of all subcontract trades and professional execution from A to Z.
Sanitary installations
Planning and implementation of sanitary installations as complete solutions for new builds, conversions and renovations, including fresh water, waste water, pre-wall systems, water softening systems and pumping systems.
Heating and ventilation systems
Design of heating and ventilation systems for private, commercial and industrial customers, including heat pumps, heat pump boilers, underfloor heating, radiators and controlled ventilation.
Service and maintenance
24/7 emergency service as well as regular maintenance and servicing of sanitary and heating systems, including repairs, fault clearance and ongoing maintenance of systems and pipework.
Bathroom showroom
Bathroom showrooms in Gossau and Rickenbach-Wil with bathroom ideas, products and personal consultation for planning a new bathroom and bathroom renovation.
Trust & reputation

ranQ Trust Score of Schwizer Haustechnik AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 58% · As of November 2026

Without public customer reviews the score stays capped.

Schwizer Haustechnik AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Schwizer Haustechnik AG scores 97.5 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.90.07%
Schwizer Haustechnik AG scores 88.3 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).88.322%
Schwizer Haustechnik AG scores 47.9 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 35.85.74%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Schwizer Haustechnik AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 58%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Press

Media

May 1, 2025Media
Meilenstein erreicht: "Einweihung unserer neuen Tiefgarage!"
gossau24.ch
February 24, 2023Media
Damit der Tag schön anfängt
leaderdigital.ch

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Location

Andwilerstrasse 32
9200 Gossau Sg

At a glance

Legal form
Corporation
UID
CHE-105.808.464
Founded
1973 · 53 years
Last commercial register change
August 25, 2026
Employees
51 to 100

Active in 1 of 26 cantons

  • SGSt. Gallen
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.100.03%
    • Full methodology

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