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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesFrauenfeldIQ Heizungen GmbH
IQ Heizungen GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company's core activity is the planning, installation, maintenance and repair of heating systems, particularly heat pumps, for private and business customers, with a focus on efficiency, sustainability and cost savings.

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Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered10
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3.8/5

IQ Heizungen GmbH

Heating system planning
Individual planning of heating systems for new builds, renovations and existing buildings; tailored to needs, cost-effectiveness and energy efficiency.
Heating system refurbishment
Modernisation of heating systems to increase energy efficiency, operational safety and sustainability; including replacement and adaptation of existing systems.
Heating service and maintenance
Regular maintenance, rapid repairs and service contracts for heating systems; to ensure efficiency, longevity and operational safety.
Heating system retrofit
Retrofit of existing heating installations with professional adjustments and energy-efficient modernisation for residential and commercial buildings.
Heating consultation
Tailored advice on heating systems, pros and cons, funding options and suitable solutions for homes or businesses.
New-build heating systems
Planning and installation of modern heating systems for new builds, designed for comfort, energy efficiency and low operating costs.
Heat pumps
Consulting, planning, installation and operation of heat pumps as a renewable, energy-efficient heating solution for private and business customers.
Boiler descaling
Professional descaling of hot water boilers, including inspection of the protective anode and maintenance to restore efficiency and service life.
Funding and permit support
Support throughout the approval process and funding applications for heating projects, including help with formalities with authorities.
Heating installation
Professional installation and integration of heating systems for residential and commercial properties.
Trust & reputation

ranQ Trust Score of IQ Heizungen GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

IQ Heizungen GmbH scores 65.0 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.73.124%
  • 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.35.310%
  • 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.78.08%
IQ Heizungen GmbH scores 57.1 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.39.612%
  • 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%
IQ Heizungen GmbH scores 85.0 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).85.022%
IQ Heizungen GmbH scores 1.1 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 35.1.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

IQ Heizungen GmbH reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 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 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Dorfstrasse 13
8500 Frauenfeld
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-334.000.028
Founded
2024 · 2 years
Last commercial register change
February 1, 2024
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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