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

About the company

The core activity of Stamm Bau AG is the provision of comprehensive construction and real estate services, including planning, consulting, renovation, refurbishment, façade construction, metal and steel construction, carpentry, painting, plastering, parquet and flooring work, as well as hazardous substance remediation. The company also offers overall services as a general or total contractor, where it carries out projects from development to realization.

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Products & services

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Stamm Bau AG

Timber Construction & Carpentry
Metal Construction
Roofing
Real Estate Project Development
✓ Offered11
Overall services (GU/TU)
Overall responsibility for construction projects as a general or total contractor, from development and planning through to turnkey execution and handover.
Real estate development
Feasibility studies, development and project planning for new builds, change of use, extensions, densification, refurbishments, renovations, alterations and site development.
Renovation and conversion
Renovations and conversions for homes, offices, industrial and public buildings, including project support from the first idea through to completion.
Timber construction
Timber system construction, element and modular construction, classic timber building work, roof storey additions, annexes, timber façades, as well as renovation and refurbishment.
Metal construction
Planning, fabrication and installation of staircases, railings, balconies, doors, façades, canopies, glazing and other custom metal solutions.
Roofing & roof renovation
Steep-slope roof coverings, new roof construction, roof renovations, roof repairs, under-roofs, insulation, roof windows, dormer windows and maintenance work.
Facade construction
Façade cladding, external thermal insulation, plastered systems, timber and metal façades, as well as maintenance, repairs and refurbishment.
Hazardous material remediation
Identification, analysis, removal and disposal of hazardous substances such as asbestos, mould, heavy metals and PCBs in residential and commercial buildings.
Planning and engineering
Structural calculations, project structural engineering, cost estimating, expert reports, building inspections, fire protection clarifications, building physics and timber construction planning.
Technical deconstruction
Openings in walls, ceilings and floors, partial demolitions, deconstruction, demolition and drilling work for sewer/pipe connections using modern machinery.
Drilling and milling
Core drilling, drilling for sewer/pipe connections and disassembly work using modern technology for precise, low-noise and dust-reduced execution.
Trust & reputation

ranQ Trust Score of Stamm Bau AG: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 100% · As of October 2026

Stamm Bau AG scores 81.6 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.69.424%
  • 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%
Stamm 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%
Stamm 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%
Stamm Bau AG scores 50.0 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 35.100.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

Stamm Bau AG reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.4 out of 5 stars from 69 customer reviews. As of October 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 69 reviews across all connected sources

Sources
GGoogle4.469
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

May 30, 2014Media
Die Stamm Bau AG ist in Arlesheim angekommen
wochenblatt.ch
May 20, 2014Media
Stamm AG richtet sich im BBC-Areal für Zukunft ein
bzbasel.ch

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Location

Aliothstrasse 63
4144 Arlesheim
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
07:30 - 12:00, 13:00 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-112.974.530
Founded
2006 · 20 years
Last commercial register change
July 14, 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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