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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSpecialized Construction ActivitiesRüschlikonBlanc & Partner GmbH
Blanc & Partner GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Blanc&Partner GmbH is the execution of concrete repair work, particularly in the following areas: Concrete drilling (core drilling in various layers and variations), Concrete cutting (sawing and milling of concrete and masonry), Concrete demolition/breaking (demolition work on walls, ceilings and concrete elements), Pavement milling (cutting and milling of asphalt and road surfaces), Diamond wire sawing (sawing of concrete and masonry with wire saws), Glue reinforcement (reinforcement of concrete structures with CFRP strips), and Demolition work (conventional demolition work by hand or with hydraulic excavators). The company offers these services to various industries, including construction, architecture and industry.

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Products & services

Industry:Specialized Construction Activities
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Blanc & Partner GmbH

✓ Offered9
Concrete cutting / concrete milling
Millimetre-precise openings, larger or additional windows, modified door formats, new balcony balustrades and wall removal for larger spaces; carried out as vibration-minimised and quiet as possible.
Concrete core drilling
Core drilling with diamond core drills from 10 mm to 1000 mm for penetrations for sanitary installations, heating systems or fireplaces; in all positions and variations.
Concrete shearing / grab demolition
Demolition of walls, ceilings and concrete elements using concrete shears and grabs; crushing reinforced concrete up to 38 cm thick with the lowest possible emissions.
Concrete pressing
Cost-effective dismantling of thick components such as concrete foundations or natural stone; hydraulic high-pressure presses for breaking down transportable concrete parts.
Demolition work
Conventional demolition work by hand or with hydraulic excavators; also possible in enclosed spaces with a hydraulic breaker and a remotely controlled demolition robot.
Diamond wire sawing
Sawing with diamond wire for demanding cuts when other technologies reach their limits.
Road surface milling
Cutting and milling of asphalt and road surfaces up to 15 cm for various trenching works.
Firestopping
Planning and installation of fire barriers between fire compartments as well as penetration openings in masonry for services, to contain possible hazard zones.
Bonded reinforcement
Strengthening of reinforced concrete structures with bonded reinforcement and CFRP laminates, usually without further intervention in the building fabric.
Trust & reputation

ranQ Trust Score of Blanc & Partner GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Blanc & Partner GmbH scores 49.8 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.68.224%
  • 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.17.610%
  • 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.35.08%
Blanc & Partner 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%
Blanc & Partner 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%
Blanc & Partner GmbH scores 7.1 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 35.7.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Blanc & Partner GmbH reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Riemenstrasse 1a
8803 Rüschlikon

At a glance

Legal form
Limited Liability Company
UID
CHE-114.740.931
Founded
2009 · 17 years
Last commercial register change
April 8, 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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