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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionThusisISOPERMAPROOF AG
ISOPERMAPROOF AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company offers a wide range of services in the field of construction and maintenance technology. The core activities include: concrete repair and sealing of dams, infrastructure buildings and other concrete structures; shotcrete work, including reinforcement nets, load-bearing capacity enhancement, injections and cavity filling; masonry restoration; special concrete forms; slope stabilization; corrosion protection of steel structures through coating systems; floor coatings for various application areas, such as workshops, production halls, storage areas, parking areas, offices and wet rooms; structural reinforcement; and liquid plastic sealing. The company also provides consulting, analysis, solution development and implementation of these services.

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Products & services

Industry:Building Construction
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4.2/5

ISOPERMAPROOF AG

✓ Offered12
Concrete repair
Repair of concrete structures due to environmental influences or construction defects, including analysis, solution development and on-time execution.
Liquid plastic waterproofing
Liquid plastic waterproofing with polyurethane, epoxy and PMMA systems for different requirements, including details and crack-bridging solutions.
Shotcrete work
Shotcrete and spray mortar work using dry and wet spraying methods for bridges, adits, retaining walls, façades, underground car parks and slope stabilisation.
Injection technology
Permanent sealing of construction joints, cracks and penetrations in the event of water ingress through injections, with competent advice and implementation.
Floor coatings
Functional and aesthetic floor coatings for workshops, production halls, storage and parking areas, offices and wet rooms.
Structural strengthening
Bonded CFRP laminates or sheets to increase load-bearing capacity in industrial buildings, parking garages, bridges, above-ground structures and conversions.
Dam waterproofing with PP-DAM
Full-surface waterproofing of water engineering structures, reservoirs, canals, adits and dams with the PP-DAM system.
Corrosion protection for steel structures
Corrosion protection work on steel structures using coating systems, including consultation, analysis, surface preparation and cost-effective execution.
Mast base rehabilitation
Rehabilitation and coating of mast bases with a 2 to 3 mm thick PU thick-coat for protection of concrete and metal connections.
Bridge refurbishments
Bridge refurbishments in the areas of concrete repair, waterproofing and corrosion protection for reinforced concrete, timber and steel structures.
Rehabilitation of adits, tunnels and channels
Rehabilitation of adit systems, tunnels and channels using dewatering, rock cleaning, shotcrete, injections, void filling and waterproofing.
Dualseal bentonite sheet waterproofing
Area waterproofing against pressurised water with bentonite and HDPE sheet, suitable for damp substrates and difficult weather conditions.
Trust & reputation

ranQ Trust Score of ISOPERMAPROOF AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

ISOPERMAPROOF AG scores 67.5 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.75.024%
  • 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.40.910%
  • 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.78.08%
ISOPERMAPROOF AG scores 92.3 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.82.07%
ISOPERMAPROOF AG scores 85.0 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).85.022%
ISOPERMAPROOF AG 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

ISOPERMAPROOF AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 4 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 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rozaweg 4
7430 Thusis

At a glance

Legal form
Corporation
UID
CHE-105.125.276
Founded
1999 · 27 years
Last commercial register change
May 5, 2025
Employees
21 to 50
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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