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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementAarauder Graf Flachdachwissen GmbH
der Graf Flachdachwissen GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

der Graf Flachdachwissen GmbH provides flat-roof consulting, planning and site coordination for refurbishment and new-build projects, including quality inspections, documentation and maintenance planning.

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Offering

Products & services

Industry:Construction & Project ManagementOwner's Representative
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3.7/5

der Graf Flachdachwissen GmbH

✓ Offered4
Consulting and Planning
Advice on flat-roof construction, standards and regulations; support with obtaining quotations and selecting suitable offers.
Renovation and new build
Support for flat-roof renovations and new builds from the first sketches through to completion; specialist construction management and coordination of the trades on site.
Quality control and documentation
Personal inspection of flat-roof work and documentation of the project for a successful completion and greater safety.
Flat-roof maintenance
Development of maintenance concepts and maintenance plans for flat roofs, as well as linking with suitable service providers.
Trust & reputation

ranQ Trust Score of der Graf Flachdachwissen GmbH: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

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Data basis 54% · As of October 2026

der Graf Flachdachwissen 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%
der Graf Flachdachwissen GmbH scores 57.1 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.39.612%
  • 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%
der Graf Flachdachwissen 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%
der Graf Flachdachwissen GmbH scores 0.9 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 35.0.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

der Graf Flachdachwissen GmbH reaches a ranQ Trust Score of 3.7 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

Stritengässli 24
5000 Aarau

At a glance

Legal form
Limited Liability Company
UID
CHE-405.845.685
Founded
2024 · 2 years
Last commercial register change
February 2, 2024
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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