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 ServicesAu SgBNL Haustechnik GmbH
BNL Haustechnik GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of BNL Haustechnik encompasses the planning, execution and maintenance of building technology, particularly in the areas of plumbing, heating, pipeline construction, service and renovation. The company offers its customers holistic solutions, ranging from individual consultations to meticulous execution and final acceptance, with the goal of creating a comfortable and technically advanced living and working space.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
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
4.0/5

BNL Haustechnik GmbH

✓ Offered6
Plumbing
Sanitary installations, installation of new showers, repair of water taps, construction of wellness bathrooms, as well as construction and maintenance of systems from planning through to completion.
Heating
Heating systems and customised heating solutions, advice on choosing the optimal energy source for homes or businesses, including wood and ground-source heat.
Pipeline construction
Planning, installation, maintenance and repair of pipework systems for water, energy and other applications in households, industry and public facilities.
Building services maintenance
Service and operational reliability for building services, customised systems to improve comfort and efficiency, and solutions to reduce energy consumption.
Remodelling
Remodelling work and renovations ranging from small jobs to large projects, individually planned and carried out with support through every step.
Advice and planning
Advice and planning in building services, recommendations on technologies and best practices, preventive maintenance and redesign of systems.
Trust & reputation

ranQ Trust Score of BNL Haustechnik GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 54% · As of October 2026

BNL Haustechnik GmbH has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
BNL Haustechnik GmbH scores 72.3 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.75.012%
  • 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%
BNL Haustechnik GmbH 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%
BNL Haustechnik GmbH scores 3.1 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 35.3.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

BNL Haustechnik GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

Knowledge

No knowledge articles yet

Once BNL Haustechnik GmbH has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

BNL Haustechnik GmbH in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank BNL Haustechnik GmbH by reviews, experience and specialisations.

Is this your company?

Claim the company profile of BNL Haustechnik GmbH to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Kamorweg 6
9434 Au Sg

At a glance

Legal form
Limited Liability Company
UID
CHE-380.754.076
Founded
2019 · 7 years
Last commercial register change
June 21, 2019
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

    Similar companies

    HH
    HWT Haus- und Wassertechnik AG
    Au Sg
    IP
    Impuls Plus GmbH
    Flawil
    ES
    Engler Sanitär AG
    Oberbüren
    RH
    Rudi Haustechnik GmbH
    Mörschwil
    WP
    W+L Partner AG
    Jona
    AA
    Angele AG Feuer Luft Wasser
    Bronschhofen
    KE
    kobelt energie GmbH
    Wil Sg
    AI
    Alptech Ingenieure Spiegel Goran
    Sargans