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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsArlesheimKalon GmbH
Kalon GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Kalon GmbH is the planning and realization of buildings using biogenic building materials such as wood, hemp, lime and clay. The company offers comprehensive services in the areas of timber construction, carpentry, system construction, windows, solid wood floors, interior finishing, planning, engineering, architecture and construction management. It develops individual solutions and custom-made unique pieces for its customers and places value on sustainable and resource-saving construction methods.

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Offering

Products & services

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Kalon GmbH

Real Estate Project Development
✓ Offered12
General contractor for timber construction & renovation
General contracting for timber construction and renovation, with project start, construction management, 3D laser scanning, regenerative building and comprehensive services from a single source.
Architecture
Architecture from the first design phase through to completion, with a clear design language, spatial planning, lighting guidance, material selection and project support.
Construction management
Construction management with responsibility from planning through to completion, coordinating all parties involved, 3D models, building plans and efficient execution within the schedule and budget.
Carpentry
Carpentry work for new builds, extensions, storey additions and renovation, including roof trusses, carports, timber facades, terraces and garden houses in frame and solid timber construction.
Timber and system construction
Timber and system construction with prefabricated elements in frame or solid timber construction, including new builds, extensions, storey additions and bio-based insulation.
Roof renovation
Roof renovation with a renovation calculator, subsidies, photovoltaics, process and cost information, and a roof service subscription.
Thoma Holz100
Holz100 projects with Thoma’s solid timber system, from initial consultation to the realization of sustainable, value-retaining buildings.
Hemp-lime
Hemp-lime made from hemp shivs, lime and water, used as a natural building material with four processing methods: in-situ, masonry, spraying and prefabricated elements.
Natural lime renders
Natural lime renders for interiors and facades, with moisture-regulating, breathable and mould-inhibiting properties, as well as various color and texture variations.
Earth construction + clay plaster
Earth construction with earth construction boards produced regionally and plastering work in different finishes for a balanced indoor climate.
Solid wood floors
Solid wood floors made from domestic timber species, mechanically fixed and suitable for floor heating; including care, sanding and restoration of old floors.
Windows
Window solutions with the TOP-WIN system from 1a hunkeler, suitable for new builds and renovation, with thermal insulation, burglary protection, slim profiles and more natural light.
Trust & reputation

ranQ Trust Score of Kalon GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 54% · As of October 2026

Kalon GmbH has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Kalon GmbH scores 65.0 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.58.012%
  • 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.55.07%
Kalon GmbH scores 83.3 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).83.322%
Kalon GmbH scores 57.1 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 35.57.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Kalon GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, so the score is backed by part of the criteria. As of October 2026.

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

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Location

Industriestrasse 60b
4144 Arlesheim
Opening hours
Mon
07:30 - 17:30
Tue
07:30 - 17:30
Wed
07:30 - 17:30
Thu
07:30 - 17:30
Fri
07:30 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-489.988.072
Founded
2022 · 4 years
Last commercial register change
February 10, 2022
Employees
1 to 10
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.
88.0
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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