ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The leading AI company directory, built to boost AI visibility.

DEENFRIT
Product
  • Pricing
  • Directory
  • Industries
  • Trust Score
Company
  • About
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesRepair of Machinery & Electronic DevicesUnterägeriDER HEIZER, Ernst Menzi
DER HEIZER, Ernst Menzi Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of the company "Der Heizer" consists of maintenance, repair and inspection of heating systems, particularly oil burners and boilers, as well as oil supply. The focus is on troubleshooting and maintenance of combustion systems, including 24-hour service.

AI-generated
Offering

Products & services

Industry:Repair of Machinery & Electronic Devices
✓ Offered5
Burner service
Burner service, boiler service and maintenance of oil-fired heating systems; fault rectification, repairs to heating control units, burner inspection and 24-hour service.
Maintenance of oil heating systems
Maintenance of boiler, heating control system, oil burner and oil supply; service for standard brands and systems in the Aegerital area, Central Switzerland and the Lake Zurich region.
Burner inspection
Burner inspection for oil-fired heating systems and heating installations; listed separately on the website as a non-binding enquiry.
Boiler service
Boiler service with regular maintenance, fault rectification and repairs to boilers and heating control units.
Repairs to heating control units
Repairs to heating control units in the event of faults in heating systems; complements the service for burners and boilers.
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
3.6/5

DER HEIZER, Ernst Menzi

Trust & reputation

ranQ Trust Score of DER HEIZER, Ernst Menzi: 3.6 out of 5.0

Trust Score3.6/ 5.0

Solid

x

Data basis 96% · As of October 2026

DER HEIZER, Ernst Menzi scores 41.4 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.32.124%
  • 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.40.910%
  • 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.70.08%
DER HEIZER, Ernst Menzi scores 78.5 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%
DER HEIZER, Ernst Menzi 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%
DER HEIZER, Ernst Menzi scores 8.0 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 35.8.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

DER HEIZER, Ernst Menzi reaches a ranQ Trust Score of 3.6 out of 5.0 — rated «Solid». The rating draws, among other things, on 2.0 out of 5 stars from 4 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
2
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle24
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

No knowledge articles yet

Once DER HEIZER, Ernst Menzi has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

DER HEIZER, Ernst Menzi in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank DER HEIZER, Ernst Menzi by reviews, experience and specialisations.

Is this your company?

Claim the company profile of DER HEIZER, Ernst Menzi to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Mühlegasse 3
6314 Unterägeri

At a glance

Legal form
Sole proprietorship
UID
CHE-111.963.096
Founded
2004 · 22 years
Last commercial register change
July 5, 2010
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.
67.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

    Similar companies

    TA
    T101 AG
    Baar
    IL
    Iten Landmaschinen
    Alosen
    HS
    HOSCH Schweiz GmbH
    Rotkreuz
    M&
    M & M Kanal-TV Technik GmbH
    Rotkreuz
    GR
    green Robotics Schweiz AG
    Steinhausen
    RS
    Röllin Service GmbH
    Cham
    RS
    ROS Schweiz GmbH
    Zug
    BE
    Brändli Electronic Center
    Zug