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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding contractorBaldeggKIENER Bau AG
KIENER Bau AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

KIENER Bau AG is a construction company that builds single- and multi-family homes, residential developments and industrial buildings. Its services include plastering and dry construction, concrete drilling and milling, renovations, refurbishments and concrete repairs.

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Presence

Service area

Offering

Products & services

Industry:Building contractorCivil works
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4.3/5

KIENER Bau AG

Excavation
Painter
✓ Offered4
New construction
Realisation of single- and multi-family houses, developments and industrial buildings in building construction; punctual execution with advice, planning and proper implementation.
Plastering work
Plastering, drywall construction, ceilings, facade renders with insulation as well as renovations and refurbishments for interior and exterior areas.
Core drilling + concrete milling
Core drilling, wet and dry concrete milling, concrete sawing, openings and wall sawing works for conversions and renovations of existing buildings.
Conversion + renewal
Waterproofing and injection works, structural and earthquake reinforcements, concrete repairs as well as smaller construction and demolition works on and around the building.
Trust & reputation

ranQ Trust Score of KIENER Bau AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 100% · As of November 2026

KIENER Bau AG scores 73.7 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.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.95.08%
KIENER Bau AG scores 94.3 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.90.07%
KIENER Bau AG scores 88.3 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).88.322%
KIENER Bau AG scores 24.3 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 35.28.64%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.20.04%
Qualifications+0.00

KIENER Bau AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.4 out of 5 stars from 15 customer reviews. As of November 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.

Press

Media

June 30, 2026Media
Abwasserleitungen werden mittels Robotertechnik erneuert
nau.ch

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Secure profile

Location

Seebadstrasse 30
6283 Baldegg

At a glance

Legal form
Corporation
UID
CHE-113.664.687
Founded
2007 · 19 years
Last commercial register change
June 29, 2021
Employees
51 to 100

Active in 1 of 26 cantons

  • LULucerne
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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