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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsGrosshöchstettenWalker Haustechnik AG
Walker Haustechnik AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Walker Haustechnik AG is the planning, installation and maintenance of building technology systems, particularly in the areas of sanitary and heating technology, alternative energies, water supply and comfort ventilation. A special focus is on the individual design of bathrooms and the consulting of customers on building technology issues.

AI-generated
Offering

Products & services

Industry:Solar & Photovoltaics
✓ Offered8
Heating systems
Heating systems for new builds, renovations of existing properties and conversions; oil and gas heating systems as well as systems for alternative and renewable energies, including heat pumps, wood heating, underfloor heating and radiators.
Solar thermal system
Solar systems for domestic hot water heating and heating support; use of solar energy to reduce oil or gas consumption in the building.
Bathroom renovation and bathroom refurbishment
Tailored bathroom refurbishments and bathroom designs for conversions; planning and execution of bathroom renovations, including 3D design and coordination of the trades involved.
Sanitary installations
Planning and installation of building services systems in the sanitary sector; apartment and system inspections, work on fittings, ceramic and silicone joints, as well as clearing clogged drain lines.
Comfort ventilation
Controlled room ventilation for single- and multi-family houses as well as office and industrial buildings; customised solutions with heat recovery and optional pollen filters.
Consulting and planning
Consulting and planning of building services systems for new builds and conversions; analysis of the site and local conditions, aligned with the expectations of the property owner/developer.
Customer service
Maintenance, repair and upkeep of building services installations; service for burst pipes, leaking taps, non-functioning heating systems and descaling of water heaters.
Central vacuum system
Central vacuum systems for buildings; planning and installation of systems that route fine dust and air to the outside via a central vacuum unit.
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4.3/5

Walker Haustechnik AG

Trust & reputation

ranQ Trust Score of Walker Haustechnik AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Walker Haustechnik AG scores 77.7 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.74.224%
  • 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.72.110%
  • 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%
Walker Haustechnik 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%
Walker Haustechnik AG scores 83.3 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).83.322%
Walker Haustechnik AG scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Walker Haustechnik AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 16 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
4.6
of 5

Aggregated from 16 reviews across all connected sources

Sources
GGoogle4.616
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Mirchelstrasse 42
3506 Grosshöchstetten
Opening hours
Mon
07:00 - 12:00, 13:30 - 17:00
Tue
07:00 - 12:00, 13:30 - 17:00
Wed
07:00 - 12:00, 13:30 - 17:00
Thu
07:00 - 12:00, 13:30 - 17:00
Fri
07:00 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.195.879
Founded
1997 · 29 years
Last commercial register change
April 1, 2015
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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