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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSealing & InsulationWeiningen ZhISOTECH Zürich AG, Weiningen
ISOTECH Zürich AG, Weiningen Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of ISOTECH Zürich AG includes sealing works and fire protection solutions, in particular: joint sealing, structural fire protection, liquid plastic sealing, Combiflex sealing, crack injection, leak detection and emergency drying, and fire protection (fire stops, fire protection sleeves, claddings). The company also offers innovative solutions for monitoring buildings and works closely with its subsidiary 1A-Bodenbeläge GmbH to provide a comprehensive range of services.

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Offering

Products & services

Industry:Sealing & Insulation
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4.3/5

ISOTECH Zürich AG, Weiningen

✓ Offered7
Waterproofing and special waterproofing
Structural waterproofing, roof waterproofing, basement and balcony waterproofing; sealing of building junctions, penetrations and special structures with liquid waterproofing, joint sealing, plastic, polyurethane and EPDM seals.
Joint sealing
Silicone joints and hybrid joints for indoor and outdoor use; sealing of bathrooms, kitchens, facades, balconies, window connections as well as floor and wall connections.
Leak detection
Precise, low-destructive detection of leaks using endoscopic cameras, thermal imaging cameras, UV water, smoke gas and impulse current measurement; also for flat roofs.
Emergency drying
Building drying with air dehumidifiers and infrared heating panels to dry walls, ceilings and screeds, and to prevent consequential damage and mould growth.
Fire protection
Firestop partitions, fire protection sleeves, linings and other fire protection requirements for structural firestopping and installations.
Strip sealing
Sealing with the Sika® Combiflex® system for movement joints, construction joints, cracks and penetrations, including on uneven or damp surfaces.
Monitoring system for unclear water ingress
Sensors and camera monitoring for continuous measurement and visual documentation of moisture patterns and time-delayed water ingress.
Trust & reputation

ranQ Trust Score of ISOTECH Zürich AG, Weiningen: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

ISOTECH Zürich AG, Weiningen scores 77.2 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.74.624%
  • 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.74.910%
  • 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.88.08%
ISOTECH Zürich AG, Weiningen 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%
ISOTECH Zürich AG, Weiningen 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%
ISOTECH Zürich AG, Weiningen scores 2.3 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 35.2.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

ISOTECH Zürich AG, Weiningen reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 18 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
4.6
of 5

Aggregated from 18 reviews across all connected sources

Sources
GGoogle4.618
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Grossächerstrasse 21
8104 Weiningen Zh
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.276.751
Founded
1999 · 27 years
Last commercial register change
January 21, 2025
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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