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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesLeutwilGraf Sanitär GmbH
Graf Sanitär GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Graf Sanitär GmbH is the installation, repair and maintenance of sanitary facilities, including well drilling services, heating and sanitary installations, as well as boiler descaling. The company provides comprehensive services in the field of sanitary technology and advises customers on the planning and execution of sanitary projects.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered9
Sanitary installations
Sanitary installations for new builds and renovations, as well as refurbishment and repairs of sanitary facilities; advice and professional execution for private individuals, municipalities, industrial companies and administrations.
Bathroom renovations
Bathroom renovations for new bathrooms and conversions of existing bathrooms, including planning, installation and execution as part of sanitary work.
Heating system installations and repairs
Installation of heating systems of all brands as well as repairs to heating and sanitary systems; also includes maintenance of systems in the building services sector.
Service for sanitary systems
Service and maintenance for sanitary systems of all brands, including repairs, inspections and ongoing support for existing installations.
Water softening systems
Installation of water softening systems for water treatment in the residential, commercial and public sectors.
Descaling of water heaters
Descaling of water heaters for maintenance and to preserve the value of hot-water systems and boilers.
Rainwater harvesting systems
Installation of rainwater harvesting systems for the use of rainwater in buildings and facilities.
Heat pumps
Installation of heat pumps as part of building services and building supply.
On-call service for water pipe breaks
On-call service for municipalities in the event of water pipe breaks, with rapid intervention and fault clearance.
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4.1/5

Graf Sanitär GmbH

Trust & reputation

ranQ Trust Score of Graf Sanitär GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Graf Sanitär 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%
Graf Sanitär GmbH scores 80.9 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.95.212%
  • 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%
Graf Sanitär 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%
Graf Sanitär GmbH scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Graf Sanitär GmbH 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.

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Location

Feldstrasse 6
5725 Leutwil

At a glance

Legal form
Limited Liability Company
UID
CHE-135.256.575
Founded
2013 · 13 years
Last commercial register change
October 3, 2017
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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