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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureTimber Construction & CarpentryHittnauJampen Holzbau
Jampen Holzbau Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Jampen Holzbau provides timber construction and carpentry services, including element-based system construction, traditional carpentry, renovations and engineered timber structures. The company also operates a joinery workshop for custom furniture and doors, offers architectural planning and construction management services, and installs photovoltaic systems and energy-efficiency upgrades.

AI-generated
Offering

Products & services

Industry:Timber Construction & Carpentry
✓ Offered4
Timber construction
Timber houses, timber system construction, conventional timber construction, engineered timber construction, as well as agricultural and commercial buildings; in addition, conversions, renovations, roof windows and energy-efficient renovations.
Architecture
Planning for single- and multi-family homes, commercial and industrial buildings, as well as public construction projects; site management and general or total contracting.
Joinery
Made-to-measure furniture and doors, interior fit-out, windows, house, room and sliding doors, as well as general joinery work and repairs.
Solar
Installation of solar panels on new builds and existing houses, integrated, roof-mounted and façade systems; support from the building permit to final acceptance.
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4.4/5

Jampen Holzbau

Trust & reputation

ranQ Trust Score of Jampen Holzbau: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

Jampen Holzbau scores 78.4 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.82.524%
  • 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.68.910%
  • 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.78.08%
Jampen Holzbau scores 85.2 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%
Jampen Holzbau scores 85.0 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).85.022%
Jampen Holzbau scores 65.7 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 35.65.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Jampen Holzbau reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.9 out of 5 stars from 14 customer reviews. The data basis is 96%, 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
4.9
of 5

Aggregated from 14 reviews across all connected sources

Sources
GGoogle4.914
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Industriestrasse 3
8335 Hittnau
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-108.302.155
Founded
2007 · 19 years
Last commercial register change
December 11, 2007
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.
67.0
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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