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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureTimber Construction & CarpentryHittnauJampen Holzbau AG
Jampen Holzbau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Jampen Holzbau AG designs and constructs timber buildings and provides architectural, carpentry and joinery services. The company offers prefabricated element construction and conventional timber work, renovation and energy-retrofit services, engineered timber structures, interior fit-outs and photovoltaic system installation and consultation.

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Offering

Products & services

Industry:Timber Construction & Carpentry
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4.3/5

Jampen Holzbau AG

✓ Offered
5
Timber construction
Timber houses, timber system construction, conventional timber construction, engineered timber construction, as well as agricultural and commercial buildings; including roof trusses, extensions, dormers and façade cladding.
Conversion and renovation
Renovations of existing buildings, conversions, interior fit-out, energy-efficient upgrades, building envelope work, roof windows, wall and ceiling lining, doors, flooring and staircases.
Joinery
Furniture, doors, windows, interior fit-out and general joinery work; including delivery and installation as well as repairs to kitchen fronts, chairs, sideboards and drawers.
Solar energy systems
Solar installations and solar panels for new builds and existing houses; in-roof, on-roof and façade systems, with support from building permit through to final acceptance.
Architecture
Planning of single- and multi-family houses, commercial and industrial buildings, as well as public construction projects; building submissions, construction management and general or total contracting.
Trust & reputation

ranQ Trust Score of Jampen Holzbau AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Jampen Holzbau AG 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 AG scores 76.3 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.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.90.07%
Jampen Holzbau AG 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 AG 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 AG reaches a ranQ Trust Score of 4.3 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
Corporation
UID
CHE-462.087.555
Founded
2022 · 4 years
Last commercial register change
January 25, 2022
Employees
51 to 100
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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