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
  • Partner program
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesSennwaldDORF-Lüftungstechnik AG
DORF-Lüftungstechnik AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

DORF-Lüftungstechnik AG provides planning, installation and maintenance of ventilation and air-conditioning systems, together with related services such as ventilation cleaning, control technology and cooling/refrigeration.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered8
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
4.4/5

DORF-Lüftungstechnik AG

Heat pump systems
Heat pumps for new builds and renovations, including consultation, subsidy application checks and full implementation.
Plumbing installations
Plumbing installations for new builds, water installations as well as bathroom conversions and repairs as part of plumbing projects.
Bathroom renovation
Bathroom renovations from minor refurbishments to complete conversions, with planning, execution and support from one source.
Air conditioning systems
Air conditioning systems for residential and commercial premises, including consulting, planning, professional installation and maintenance.
Ventilation systems
Ventilation systems for comfortable indoor air, including planning and installation.
Maintenance & emergency service
Maintenance, repairs and 24-hour emergency service for heating and plumbing systems, also in the evening, at night and on Sundays and public holidays.
Biomass heating
Biomass heating systems for sustainable heating, with consultation and full implementation.
Cooling & refrigeration technology
Cooling and refrigeration technology for buildings and systems, in the area of climate & ventilation.
Trust & reputation

ranQ Trust Score of DORF-Lüftungstechnik AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

DORF-Lüftungstechnik 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.92.224%
  • 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.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%
DORF-Lüftungstechnik AG scores 74.3 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.58.012%
  • 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.82.07%
DORF-Lüftungstechnik AG 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%
DORF-Lüftungstechnik AG 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

DORF-Lüftungstechnik AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.9 out of 5 stars from 99 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
4.9
of 5

Aggregated from 99 reviews across all connected sources

Sources
GGoogle4.999
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

No knowledge articles yet

Once DORF-Lüftungstechnik AG has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

DORF-Lüftungstechnik AG in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank DORF-Lüftungstechnik AG by reviews, experience and specialisations.

Is this your company?

Claim the company profile of DORF-Lüftungstechnik AG to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Erlenstrasse 3
9466 Sennwald
Opening hours
Mon
08:00 - 12:00, 14:00 - 16:00
Tue
08:00 - 12:00, 14:00 - 16:00
Wed
08:00 - 12:00, 14:00 - 16:00
Thu
08:00 - 12:00, 14:00 - 16:00
Fri
08:00 - 12:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-355.654.804
Founded
2022 · 4 years
Last commercial register change
October 31, 2022
Employees
21 to 50
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

    Similar companies

    BH
    Beeler Haustechnik AG
    Flums
    VH
    VRA Haustechnik GmbH
    St. Gallen
    NT
    Novo Therm GmbH
    Flawil
    TI
    Th. Inauen AG
    Waldkirch
    BA
    Beeler AG
    Flums
    FU
    Franz Ulmann AG
    Lüchingen
    TL
    Tobler Lüftung + Klima AG
    Wattwil
    PG
    PvA Gebäude- und Rohrtechnik GmbH
    Eggersriet