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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceWinterthurGarantie Bau GmbH
Garantie Bau GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The company Garantie Bau GmbH offers a wide range of services in the construction industry. The core activities include: demolition and dismantling work (mechanical and manual), drywall construction (finishing with prefabricated drywall elements such as gypsum plasterboard), plastering, tiling, painting, bathroom renovation, conservatory construction (made of aluminum), and renovation work (including total renovation). The company thus provides comprehensive services for the finishing, renovation, and refurbishment of buildings and rooms.

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Offering

Products & services

Industry:Building MaintenanceSite Preparation
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Garantie Bau GmbH

Painting & Plastering
✓ Offered8
Drywall construction
Tailored solutions for interiors, supported by planning, implementation and final completion using modern techniques and drywall materials.
Demolition work
Total and partial demolition with mechanical and manual dismantling, including professional gutting and clearance of the building.
Waterproofing work
Professional waterproofing for basements, roofs, balconies and terraces to protect against moisture, dampness and structural damage.
Painting work
Painting work with clean, on-time execution and careful leaving of job sites in perfect condition.
Tiling work
Tile installation in bathrooms, kitchens and outdoor areas, focusing on visual enhancement and professional execution.
Bathroom renovation
Bathroom renovation, bathroom refurbishment and bathroom reconstruction, from partial refurbishment to barrier-free bathrooms and modern design bathrooms.
General assembly
Renovation and refurbishment projects as general contractor, including office fit-out, apartment renovation and space partitioning.
Waste disposal
Household clear-outs and waste disposal service from planning to execution, professionally and according to individual requirements.
Trust & reputation

ranQ Trust Score of Garantie Bau GmbH

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

Garantie Bau 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%
Garantie Bau GmbH scores 65.0 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.58.012%
  • 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%
Garantie Bau 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%
Garantie Bau GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Knowledge

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Comparisons

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Location

Bahnhofplatz 8
8400 Winterthur

At a glance

Legal form
Limited Liability Company
UID
CHE-360.855.946
Founded
2022 · 4 years
Last commercial register change
March 29, 2022
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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