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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInsulationGrenchenTectus Abdichtungen GmbH
Tectus Abdichtungen GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Tectus Abdichtungen GmbH builds and renovates flat roofs and carries out waterproofing and sheet-metal work. Its services also include floor coatings, protective and usable roof layers, and rooftop photovoltaic installations.

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Service area

Offering

Products & services

Industry:Insulation
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4.0/5

Tectus Abdichtungen GmbH

6
Flat roof / roofing technology
Flat roof waterproofing for new builds and roof renovation, with plastic sealing membranes and bituminous waterproofing; green, gravel, walk-on or mechanically fastened roofs, plus applications for pitched roofs and photovoltaics.
Waterproofing / waterproofing technology
Building waterproofing, joint sealing, flat roof waterproofing and flat roof renovations; also liquid plastic waterproofing, balcony coatings, roof greening, usable coverings, as well as servicing and maintenance.
Sheet metal work / sheet metal works
Classic sheet metal work for historic buildings, renovations and metal roofs; custom-made items, Prefa metal trims, metal claddings, roof edges, gutters and ventilation.
Floor coatings / floor coating technology
Floor coatings, impregnation, primers, floor paints, flowing and roller coatings, sealants and marking paints for cellars, workshops and industrial floors.
Protective and functional layers / functional layers over waterproofing
Protective and functional layers for flat roofs and outdoor areas; waterproofing of wall junctions and floor surfaces as well as walkway coverings, gravel layers, green roofs and coverings made of granite, wood or ceramics.
Solar / photovoltaics on flat roofs
Consulting and installation of photovoltaics on flat roofs, as an on-roof, in-roof or façade solution; systems mounted on or in the roof.
Trust & reputation

ranQ Trust Score of Tectus Abdichtungen GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 88% · As of November 2026

Tectus Abdichtungen GmbH scores 71.6 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.79.424%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.52.910%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Tectus Abdichtungen GmbH scores 72.3 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.75.012%
  • 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%
Tectus Abdichtungen GmbH scores 86.7 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).86.722%
Tectus Abdichtungen GmbH scores 1.7 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 35.1.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Tectus Abdichtungen GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 7 customer reviews. The data basis is 88%, so the score is backed by part of the criteria. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle57
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Location

Zelgweg 4a
2540 Grenchen
Opening hours
Mon
09:00 - 17:00
Tue
09:00 - 17:00
Wed
09:00 - 17:00
Thu
09:00 - 17:00
Fri
09:00 - 17:00
Sat
09:00 - 17:00
Sun
09:00 - 17:00

At a glance

Legal form
Limited Liability Company
UID
CHE-360.856.472
Founded
2019 · 7 years
Last commercial register change
April 10, 2025
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • SOGrenchen
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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