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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionSchmiedruedLoosli Bau AG
Loosli Bau AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Loosli Bau AG encompasses the areas of construction, civil engineering, transportation, suction dredging, metal construction, trough service and tightness testing. The company thus offers a wide range of services in the construction industry, from planning and execution of construction and civil engineering projects to specialized services such as suction dredging and metal construction.

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Offering

Products & services

Industry:Building ConstructionBuilding Maintenance
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4.4/5

Loosli Bau AG

Civil Engineering
Site Preparation
✓ Offered7
Building construction
Single-family homes, residential and multi-family houses, commercial buildings, industrial facilities, agricultural buildings and public buildings; also conversions and renovations.
Civil engineering
Excavation and trenching, utility lines for water, electricity, gas and communications, trench milling and site works such as squares, paving and natural stone walls.
Planning
Forward-looking and efficient planning as the basis for construction projects, from the initial idea to handover of the keys.
Transport
Transport of building materials, machines, excavated material and humus, as well as skip service for new builds, renovations, spring cleaning, moving house and cleanup work.
Suction excavator
Suction excavator operations for gentle, versatile uncovering and work, with quick readiness.
Metal fabrication
Railings, staircases, universal equipment chests, balcony extensions and custom-made steel fabrications for indoor and outdoor areas.
Pressure tests
Leak-tightness tests for foul and clean-water pipelines with test report; tests according to SIA standard 190 and GPS-recorded locations.
Trust & reputation

ranQ Trust Score of Loosli Bau AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 100% · As of October 2026

Loosli Bau AG scores 85.9 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.87.524%
  • 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.74.910%
  • 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.95.08%
Loosli Bau AG scores 92.3 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.82.07%
Loosli 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%
Loosli Bau AG scores 30.7 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 35.51.44%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Loosli Bau AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 18 customer reviews. 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 18 reviews across all connected sources

Sources
GGoogle518
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

January 28, 2021Media
Generationenwechsel ohne Krach: Urs Loosli gibt sein Geschäft dem Sohn weiter
aargauerzeitung.ch

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Location

Matt 3
5046 Schmiedrued
Opening hours
Mon
07:30 - 11:45, 13:00 - 17:00
Tue
07:30 - 11:45, 13:00 - 17:00
Wed
07:30 - 11:45, 13:00 - 17:00
Thu
07:30 - 11:45, 13:00 - 17:00
Fri
07:30 - 11:45, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-101.001.681
Founded
2000 · 26 years
Last commercial register change
June 20, 2025
Employees
21 to 50
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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