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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsWetzikon ZhFerri Haustechnik GmbH
Ferri Haustechnik GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Ferri GmbH is the provision of services in the areas of heating, sanitation and solar energy. This includes consulting, planning, installation and maintenance of systems in these areas.

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Offering

Products & services

Industry:Solar & Photovoltaics
✓ Offered10
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3.9/5

Ferri Haustechnik GmbH

Heating engineering
Planning, execution and commissioning of heating systems with wood, oil, gas, heat pump and district heating; solutions from economic and ecological perspectives.
Solar technology
Planning and consulting for renewable solar technology; services in the field of environmentally friendly and cost-effective solar solutions.
Heat pumps
Consulting and offers for heat pumps as heating and domestic hot water systems; use of outside air, ground or groundwater for heat recovery.
Wood heating systems
Consulting and offers for modern wood heating systems as heating systems for houses and apartments.
Gas heating systems
Consulting and offers for gas heating systems with heat generation via burners, heat exchangers and heating water.
Oil heating systems
Consulting and offers for oil heating systems as central heating units with oil tank, circulation pump and heating boiler.
Sanitary installations
Planning and execution of sanitary installations for new builds and buildings, including pipe routing as well as bathroom and ancillary room design.
Water softening systems
Installation and use of water softening systems for drinking water installations and partial softening; protection of pipes, boilers and appliances from limescale deposits.
Boiler maintenance
Periodic maintenance and cleaning of boilers to prevent contamination, malfunctions, damage and high energy costs.
24h repair service
Repair service 365 days a year, also outside business hours, on weekends and public holidays; contact by phone or WhatsApp.
Trust & reputation

ranQ Trust Score of Ferri Haustechnik GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Ferri Haustechnik GmbH scores 53.8 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.70.824%
  • 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.27.910%
  • 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.35.08%
Ferri Haustechnik GmbH scores 83.0 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%
Ferri Haustechnik GmbH 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%
Ferri Haustechnik GmbH scores 2.9 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 35.2.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Ferri Haustechnik GmbH reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 2 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
5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Binzackerstrasse 41
8620 Wetzikon Zh
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 17:00
Sat
08:00 - 12:00, 13:30 - 17:00
Sun
08:00 - 12:00, 13:30 - 17:00

At a glance

Legal form
Limited Liability Company
UID
CHE-106.065.205
Founded
1998 · 28 years
Last commercial register change
July 20, 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.
88.0
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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