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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSealing & InsulationGossau ZhDrytech Swiss AG
Drytech Swiss AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Drytech Swiss is the development and application of high-quality sealing solutions in civil engineering, underground construction and special deep foundation engineering, particularly for the sealing of buildings against water and moisture, to ensure dry buildings, healthy spaces and the protection of humans and the environment.

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Offering

Products & services

Industry:Sealing & Insulation
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4.1/5

Drytech Swiss AG

✓ Offered10
Waterproofing solutions for above-ground, civil and special deep construction
Waterproofing solutions for above-ground, civil and special deep construction, for dry structures, healthy spaces and protection against groundwater.
Consulting
Consulting for architects, clients, civil engineers and builders regarding waterproofing systems and their use.
Waterproofing systems
Weisse Wanne, Weisse Wanne Plus, Blaue Wanne and joint sealing as systems for waterproofing structures against pressurised water.
Waterproofing execution
Concrete placement supervision, joint sealing systems, sealing of penetrations, as well as quality assurance and documentation on site.
Renovation of waterproofing
Crack injection, horizontal waterproofing, vertical external waterproofing and internal waterproofing for the renovation of existing structures.
System S3®
Waterproofing solution for construction joints against pressurised water with three components and modular mechanical fastening.
System S4®
Installable waterproofing solution for construction joints against pressurised water with swelling strip, joint tape, injection channel and fresh concrete bond.
Injection channel (S1)
Weather-independent waterproofing of construction joints by resin injection with the option for subsequent re-injections.
Fresh concrete bond membrane
Additional surface waterproofing for the Weisse Wanne, intended for targeted use and for proper planning and execution.
Pipe penetration
Waterproofing of pipe penetrations with pipe collars for different shapes, diameters and materials.
Trust & reputation

ranQ Trust Score of Drytech Swiss AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Drytech Swiss AG scores 61.4 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.76.724%
  • 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.45.610%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.35.08%
Drytech Swiss 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%
Drytech Swiss AG scores 85.0 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).85.022%
Drytech Swiss AG scores 54.3 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 35.54.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Drytech Swiss AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 5 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Industriestrasse 37
8625 Gossau Zh
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-108.373.505
Founded
1995 · 31 years
Last commercial register change
July 21, 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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