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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesOltingenWeitnauer Haustechnik GmbH
Weitnauer Haustechnik GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Weitnauer Haustechnik GmbH is a building services company providing plumbing, sheet metal work, heating, and maintenance services. Its work includes bathroom renovations, sanitary installations, heating systems, repairs, and the installation of water softening systems.

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Offering

Products & services

Industry:Plumbing & Building Services
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3.6/5

Weitnauer Haustechnik GmbH

Sheet Metal Work
Specialized Construction Installations
✓ Offered5
Plumbing Services
Plumbing services for new builds and renovations, plus maintenance and repairs for sanitary systems, pipework, drains, taps and boilers.
Heating Services
Heating systems for new builds and renovations, heating refurbishments, service and repair work, plus optimisation and alternative-energy solutions.
Sheet Metal Work
Sheet metal and tinsmith work for properties, combined with plumbing and heating services for coordinated project execution.
Building Services Maintenance and Repair
Service, maintenance and repairs for heating and sanitary systems, including seals, filters, fittings, equipment and boiler descaling.
Water Softening Systems
Planning, professional installation, commissioning and instruction for water softening systems to reduce limescale and provide soft water.
Trust & reputation

ranQ Trust Score of Weitnauer Haustechnik GmbH: 3.6 out of 5.0

Trust Score3.6/ 5.0

Solid

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Data basis 54% · As of October 2026

Weitnauer 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.
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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%
Weitnauer Haustechnik GmbH scores 50.8 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.25.012%
  • 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%
Weitnauer 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.
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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).83.322%
Weitnauer Haustechnik GmbH scores 4.9 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.4.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Weitnauer Haustechnik GmbH reaches a ranQ Trust Score of 3.6 out of 5.0 — rated «Solid». 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.

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Location

Schafmattstrasse 79
4494 Oltingen

At a glance

Legal form
Limited Liability Company
UID
CHE-242.886.196
Founded
2025 · 1 year
Last commercial register change
September 18, 2025
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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