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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionSaas Im PrättigauJakob Boner Holzbau AG
Jakob Boner Holzbau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Jakob Boner Holzbau AG is the planning, manufacture and assembly of timber constructions, in particular log and round wood houses, prefabricated buildings, roof structures, facade cladding, interior fittings and agricultural buildings, as well as conversions and renovations of existing buildings.

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Products & services

Industry:Interior ConstructionTimber Construction & Carpentry
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3.8/5

Jakob Boner Holzbau AG

✓ Offered6
Strick and round timber buildings
Strick houses made of solid Swiss timber and round timber houses, expertly assembled and erected on site; for residential buildings and alpine dairy farms (Maiensässe).
Prefabricated element buildings
Prefabricated element buildings with frame elements, thermal insulation and wall cladding, produced in the workshop and quickly erected with mobile cranes.
Conversions & renovations
Conversions ranging from a simple timber-frame annex to a comprehensive full renovation of a residential building, with thermal insulation using wood-fibre insulation materials or sheep’s wool and adaptations in salvaged timber (Altholz).
Agricultural buildings
Agricultural buildings and large livestock barns with custom tie-beam (Binder) structures for load-bearing systems, timber-stud (Riegel) constructions for walls and boarding.
Roof structures & facade cladding
Roof structures and facade cladding in spruce or larch, on request with special surfaces, decorative elements, window frames, shutters and balcony railings.
Interior fit-out
Interior fit-out with wall cladding in arve (Swiss pine), solid oak staircases, mortise-and-tenon doors, insulated entrance doors, plank floors and parquet floors.
Trust & reputation

ranQ Trust Score of Jakob Boner Holzbau AG: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 88% · As of October 2026

Jakob Boner Holzbau AG scores 50.1 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.63.624%
  • 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.17.610%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Jakob Boner Holzbau AG scores 82.3 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.92.512%
  • 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%
Jakob Boner Holzbau AG scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Jakob Boner Holzbau AG scores 0.9 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 35.0.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Jakob Boner Holzbau AG reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 1 customer reviews. The data basis is 88%, 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.

Reviews

Aggregated rating

Aggregated rating
4
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle41
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Kleinriedweg 13
7247 Saas Im Prättigau
Opening hours
Mon
07:00 - 12:00, 13:30 - 17:30
Tue
07:00 - 12:00, 13:30 - 17:30
Wed
07:00 - 12:00, 13:30 - 17:30
Thu
07:00 - 12:00, 13:30 - 17:30
Fri
07:00 - 12:00, 13:30 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-408.016.863
Founded
2014 · 12 years
Last commercial register change
February 10, 2021
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.
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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