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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesUetendorfWasner AG
Wasner AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Wasner AG is the revision, renovation and dismantling of tanks, in particular heating oil tanks, as well as the installation of new tank systems and the performance of maintenance and repair services in the field of tank technology.

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Products & services

Industry:Plumbing & Building ServicesSpecialized Construction Installations
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Wasner AG

✓ Offered12
Heating oil tank inspection
Inspection with internal cleaning or visual checks for heating oil tanks, including inspection of the tank room, lines, and safety-related equipment, plus the required statutory reporting.
Tank rehabilitation
Rehabilitation of heating oil tanks using an internal liner, coating, or repair of underground tanks, small tank systems, and tanks in tank rooms.
New tank installations
Planning and construction of new tank installations for heating oil, fuels, HVO, water, and rainwater, including coordination with site space conditions and requirements.
Pipework installation
Planning and installation of vent, product, gas return, burner, and water lines for new or existing tank installations.
Decommissioning and dismantling of tanks
Professional decommissioning, de-oiling, degassing, cleaning, deregistration, and dismantling and disposal of tanks using the cold method.
Fuel station inspection
Inspection of fuel stations including cleaning, checks of tank sumps/pits, covers, lines and safety-related equipment, plus the required report to the authorities.
Fuel station rehabilitation
Rehabilitation of fuel stations with coating, repair of pits/sumps and pit covers, as well as solutions for double-walled or corroded systems.
Commercial tank installations
Fueling installations for agriculture and industry, including planning, clarifications, safety precautions, and coordination of execution.
Rainwater utilisation
Rainwater systems for garden irrigation, WC flushing, and the washing machine, as well as storage for retention and to relieve the sewer system.
Conversion of heating oil tanks to rainwater storage
Conversion of existing heating oil tanks into rainwater storage units with an internal liner or coating, including decommissioning and internal treatment.
Service and accessories for tank systems
Tank cleaning, oil filtration, product changeovers, leak detection devices, cathodic protection, level indicators, oil management, filling safeguards, and burst protection devices.
HVO bio-fuel
HVO for your own fueling installations and fleets, to reduce CO2 emissions and for use in agriculture, business, and transport.
Trust & reputation

ranQ Trust Score of Wasner AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Wasner AG 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%
Wasner AG scores 89.3 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.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.70.07%
Wasner AG 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%
Wasner AG scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Wasner AG reaches a ranQ Trust Score of 4.1 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

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Location

Jungfraustrasse 19
3661 Uetendorf

At a glance

Legal form
Corporation
UID
CHE-101.262.721
Founded
1988 · 38 years
Last commercial register change
April 28, 2026
Employees
11 to 20
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

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