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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesZuchwilASR Haustechnik AG
ASR Haustechnik AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The company's core activity is in building technology, particularly in the areas of plumbing, heating and ventilation for residential, commercial and industrial buildings. The company offers specialized services such as renovations of heating systems with renewable energy sources, the retrofitting of modern comfort ventilation systems and the conversion of bathrooms.

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Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered
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ASR Haustechnik AG

8
Sanitary installations
Sanitary installations for bathrooms and water connections, including advice, planning and implementation of custom bathrooms and matching service solutions.
Heating systems
Heating systems for new builds and renovations, with sustainable, ecological and economical solutions plus optimisation of existing systems and thermostats.
Ventilation systems
Ventilation systems with comfort ventilation, air exchange, heat recovery, plus maintenance and cleaning for residential and public buildings.
Building services renovations
Renovations of heating systems, retrofitting of comfort ventilation and bathroom remodelling, optionally with overall project management and coordination of all trades.
Building services maintenance
Service and maintenance solutions for building services, including water filter checks, boiler maintenance, heating inspections, descaling systems and 24-hour emergency service.
Building services planning
Planning and realisation of building services for new builds and renovations, with photorealistic planning and virtual reality for bathrooms and construction projects.
Water softening systems
Water softening systems from Grünbeck for households, with filter technology, app control, installation, maintenance and protection of pipes against limescale.
Heat pump water heaters
Heat pump water heaters as replacements for electric boilers, including dismantling, installation, adaptation work and proper disposal of the old system.
Trust & reputation

ranQ Trust Score of ASR Haustechnik AG: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 100% · As of October 2026

ASR Haustechnik AG scores 94.6 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.92.324%
  • 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.100.010%
  • 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%
ASR Haustechnik AG scores 89.3 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.70.07%
ASR Haustechnik AG scores 86.7 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).86.722%
ASR Haustechnik AG scores 17.7 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 35.28.64%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.6.74%
Qualifications+0.00

ASR Haustechnik AG reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.9 out of 5 stars from 103 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.9
of 5

Aggregated from 103 reviews across all connected sources

Sources
GGoogle4.9103
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

November 22, 2021Media
ASR Haustechnik: Der Handwerksberuf gibt Sicherheit für die Zukunft
nau.ch

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Location

Luzernstrasse 49
4528 Zuchwil
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-185.341.131
Founded
2011 · 15 years
Last commercial register change
May 29, 2026
Employees
11 to 20
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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