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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil worksUnterkulmA. Soltermann AG Erdarbeiten
A. Soltermann AG Erdarbeiten Logo
Verified· 4 sourcesTrust Score
Summary

About the company

A. Soltermann AG Erdarbeiten is a construction company providing demolition, earthmoving and building (masonry/gross-works) services as well as civil engineering tasks. Its offerings include plastering, concrete processing, sewer/channel technology, operation and rental of crushing and screening plants, and transport services with heavy vehicles.

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Service area

Offering

Products & services

Industry:Civil works
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4.5/5

A. Soltermann AG Erdarbeiten

✓ Offered8
Excavation and earthworks
Earthworks for construction projects, excavation as a basis for foundations, earthworks according to BKP 201, execution of yard and access works.
Civil engineering works
Civil engineering projects including utility line construction, surfacing and external works, sewer systems, structures, and other civil engineering works.
Demolition
Demolition work for structures and building fabric, as preparation for new builds and other construction projects.
Structural building works
Structural building works for residential, industrial, commercial and public buildings, as well as for renovations and conversions.
Client works
Client bricklaying works, client plastering works, interior and exterior rendering, façade and roof insulation, façade renovations, ceiling and wall cladding.
Special works
Injections, liquid plastic, bonded reinforcements and Combiflex tape for waterproofing, renovations and strengthening of concrete components.
Transport
Transport and skip service with 4-axle and 5-axle vehicles, tipper trucks, silo tankers, concrete mixers, crane and hook equipment.
Material recycling
Processing construction waste into secondary raw materials with crushing and screening plants, including rental of the plants.
Trust & reputation

ranQ Trust Score of A. Soltermann AG Erdarbeiten: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 100% · As of November 2026

A. Soltermann AG Erdarbeiten scores 91.9 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.100.010%
  • 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%
A. Soltermann AG Erdarbeiten 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%
A. Soltermann AG Erdarbeiten 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%
A. Soltermann AG Erdarbeiten scores 25.0 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 35.40.04%
  • 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

A. Soltermann AG Erdarbeiten reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.8 out of 5 stars from 90 customer reviews. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.8
of 5

Aggregated from 90 reviews across all connected sources

Sources
GGoogle4.890
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

December 13, 2022Media
Wechsel nach 31 Jahren: In der Baufirma Soltermann kommt die nächste Generation zum Zug
aargauerzeitung.ch

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Location

Feldmatte 4
5726 Unterkulm
Opening hours
Mon
07:00 - 12:00, 13:15 - 18:00
Tue
07:00 - 12:00, 13:15 - 18:00
Wed
07:00 - 12:00, 13:15 - 18:00
Thu
07:00 - 12:00, 13:15 - 18:00
Fri
07:00 - 12:00, 13:15 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.636.702
Founded
1996 · 30 years
Last commercial register change
August 15, 2024
Employees
51 to 100

Active in 1 of 26 cantons

  • AGAargau
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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