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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSpecialized Construction ActivitiesAarauAvanti Bau GmbH
Avanti Bau GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Avanti Bau GmbH is the execution of construction projects and services in the areas of: structural reinforcement and stabilization of building components, fire protection measures, renovation and value enhancement of real estate, building protection and coating, sealing and insulation of buildings, and building renovation, including mold remediation and flat roof renovation. The company thus offers a wide range of services in the construction and real estate sector, with a focus on the safety, protection and maintenance of buildings.

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Products & services

Industry:Specialized Construction Activities
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4.1/5

Avanti Bau GmbH

9
Waterproofing
Waterproofing of structures, watertight buildings, waterproofing concepts and products, professional installation for new construction and renovation.
Thermal Insulation
Thermal insulation for the building envelope, roof and facade; facade insulation, internal insulation and perimeter insulation to protect against heat, cold and environmental influences.
Renovations
Renovations for restoration, structural reinforcement, fire protection and mould remediation to maintain the value and safety of real estate.
Building Protection / Coating
Measures for building protection and coating to preserve the value and function of construction projects.
Flat Roof Waterproofing
Waterproofing of flat roofs for modern buildings with high use of space and protection against water damage.
Repairs and Restoration
Restoration to increase and maintain the value of properties, as part of renovation services.
Structural Reinforcement
Reinforcement and stabilisation of structural components to increase the safety of construction projects.
Fire Protection Renovations
Fire protection measures to protect against fire and smoke as part of renovations.
Mould Remediation
Mould remediation for healthy living and a pleasant indoor climate.
Trust & reputation

ranQ Trust Score of Avanti Bau GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Avanti Bau GmbH scores 69.7 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.69.424%
  • 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.55.910%
  • 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%
Avanti Bau GmbH scores 83.0 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.55.07%
Avanti Bau GmbH 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%
Avanti Bau GmbH scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Avanti Bau GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.5 out of 5 stars from 8 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
4.5
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle4.58
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Pestalozzistrasse 49
5000 Aarau
Opening hours
Mon
07:30 - 12:00, 13:15 - 17:00
Tue
07:30 - 12:00, 13:15 - 17:00
Wed
07:30 - 12:00, 13:15 - 17:00
Thu
07:30 - 12:00, 13:15 - 17:00
Fri
07:30 - 12:00, 13:15 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-104.364.660
Founded
1998 · 28 years
Last commercial register change
April 28, 2026
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.
88.0
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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