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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSealing & InsulationHunzenschwilJohler Gussasphalt AG
Johler Gussasphalt AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Johler Gussasphalt AG is a company offering gussasphalt, sealing, coating and maintenance services. It provides project planning and execution of gussasphalt pavements as well as waterproofing and coating works for building and civil engineering projects across Switzerland.

AI-generated
Offering

Products & services

Industry:Sealing & Insulation
✓ Offered5
Mastic asphalt work
Mastic asphalt for building and civil engineering; trafficable and walkable surfaces indoors and outdoors, screed floors, and applications for car parks, structures, road surfaces and below-ground waterproofing.
Bituminous waterproofing
Bituminous waterproofing for interior and exterior areas; vapour barriers, waterproofing under rolled asphalt and mastic asphalt, below-ground waterproofing, inverted roofs, foam-glass insulation and sealing layers.
Floor coatings
Floor coatings for indoor and outdoor areas; chemical-resistant, slip-resistant and mechanically durable surfaces for gastronomy, car parks, wellness areas, industry, interiors and balconies.
Maintenance and refurbishment
Maintenance and refurbishment for mastic asphalt surfaces and waterproofing; regular inspections, repairs, resurfacing, joint and crack repairs, restoration of bituminous waterproofing and flat-roof refurbishment.
Surface repair (Johler Asphalt Repro)
Surface repair with Johler Asphalt Repro; rapid repair of road surfaces and general pavement cracks with short curing times, suitable for railway stations, parking decks, public squares and roads.
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4.2/5

Johler Gussasphalt AG

Trust & reputation

ranQ Trust Score of Johler Gussasphalt AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Johler Gussasphalt AG scores 69.8 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.68.910%
  • 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.50.08%
Johler Gussasphalt 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%
Johler Gussasphalt 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%
Johler Gussasphalt AG scores 34.3 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 35.34.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Johler Gussasphalt AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 14 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
4.7
of 5

Aggregated from 14 reviews across all connected sources

Sources
GGoogle4.714
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Römerstrasse 25
5502 Hunzenschwil
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-112.093.233
Founded
2004 · 22 years
Last commercial register change
November 21, 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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