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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementRubigenKästli Bau AG
Kästli Bau AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Kästli Bau AG supplies recycled construction materials such as stone, sand and soil and provides material logistics, including transport. The company delivers construction services from a single source and manages disposal and recycling of demolition materials.

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Products & services

Industry:Construction & Project Management
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Kästli Bau AG

✓ Offered
6
Construction
Infrastructure, earthworks and water construction with planning and delivery of projects designed for later clean dismantling and long material cycles.
Dismantling
Selective dismantling of structures, clean separation of materials and return of raw materials to the cycle, from single-family houses to large industrial buildings.
Material logistics
Efficient supply of construction sites with materials and disposal of construction waste, which is reprocessed in the production facilities.
Recycling
Processing of construction waste in Rubigen, with around 95 percent of delivered materials kept in the cycle and raw materials recovered for construction.
Raw material extraction
Extraction of construction raw materials through material recycling and gravel extraction in the gravel pit in Rubigen, with gentle extraction and ecological backfilling.
Building materials
Development and production of circular building materials from primary and recycled materials, including zirkulit beton® and resource-saving low-temperature asphalt.
Trust & reputation

ranQ Trust Score of Kästli Bau AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

Kästli Bau AG scores 54.7 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.59.124%
  • 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.88.08%
Kästli Bau AG scores 98.5 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.96.07%
Kästli Bau AG scores 86.7 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).86.722%
Kästli Bau AG scores 59.1 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 35.91.44%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.26.74%
Qualifications+0.00

Kästli Bau AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 3.0 out of 5 stars from 1 customer reviews. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
3
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle31
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

April 9, 2026Media
Fünf Familienunternehmen gründen zirkulit Beton AG
punkt4.info
February 25, 2026Media
Illegales Kartell: Berner Baufirmen haben Asphalt-Preise abgesprochen
bernerzeitung.ch
June 27, 2024Media
Rubigen: Kollaboration im Bau – Fachtagung zeigt neue Wege auf
nau.ch

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Location

Altes Riedgässli 2
3113 Rubigen
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-345.919.415
Founded
2011 · 15 years
Last commercial register change
July 21, 2026
Employees
101 to 500
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.95.03%
    • Full methodology

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