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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryReal EstateProperty ManagementBrunnenTonazzi Immobilien AG
Tonazzi Immobilien AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Tonazzi Immobilien AG provides construction waterproofing and building protection services, including below-ground waterproofing, bonded reinforcements, renovations, coatings and restoration, and collaborates with architects, engineers, general contractors and building owners.

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Products & services

Industry:Property Management
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4.1/5

Tonazzi Immobilien AG

✓ Offered
5
Construction waterproofing
Waterproofing concepts, area waterproofing as well as sealing of joints and cracks; use of fresh concrete composite membrane, DUALSEAL®, Hypalon tape, joint tape, injection hose and injection.
Renovation and restoration
Renovation of exposed concrete and natural stone, water-carrying cracks and leaking waterproofing as well as jointless coatings; including renovation concepts and detailed design planning.
Bonded reinforcements
Strengthening of structural elements in case of changes in use or increased load; planning and execution with CFRP laminates, steel laminates, sheets / wraps, punching shear reinforcement and fire protection cladding.
Coatings
Surface treatments and coatings for concrete and other substrates; applications for swimming pools, wet rooms, parking decks, drinking-water reservoirs, retention basins, flat roofs and wastewater treatment plants.
Restoration
Retouching on mineral substrates and wood, concrete beautification, concrete cleaning, concrete protection, as well as colour and relief additions or imitations.
Trust & reputation

ranQ Trust Score of Tonazzi Immobilien AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Tonazzi Immobilien AG scores 70.5 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.68.024%
  • 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.70.510%
  • 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%
Tonazzi Immobilien AG scores 79.8 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.86.512%
  • 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%
Tonazzi Immobilien 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%
Tonazzi Immobilien AG scores 31.4 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 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Tonazzi Immobilien AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.4 out of 5 stars from 15 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
4.4
of 5

Aggregated from 15 reviews across all connected sources

Sources
GGoogle4.415
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Dammstrasse 2
6440 Brunnen

At a glance

Legal form
Corporation
UID
CHE-254.138.445
Founded
2016 · 10 years
Last commercial register change
February 14, 2024
Employees
1 to 10
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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