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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesRepair of Consumer GoodsJonaAlfons Amweg Klavierbauermeister
Alfons Amweg Klavierbauermeister Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company's core activity is the restoration, maintenance and repair of pianos, grand pianos, harpsichords and spinets, including tuning and revisions, carried out by a trained master piano maker.

AI-generated
Offering

Products & services

Industry:Repair of Consumer Goods
✓ Offered4
Tuning
Tuning of pianos, grand pianos, harpsichords and spinets for private clients, schools, parish congregations, halls and studios; annual tuning and reminders on request.
Repairs
Overhauling of pianos and grand pianos; repair of the action, keyboard and acoustic system, installation of new hammers or dampers, restringing and work on the soundboard.
Advisory and expert reports
Advice on the instrument, support when buying a new instrument, accompaniment to a specialist shop as an independent expert and expert assessments for private purchases.
Instruments and accessories
Selection of overhauled pre-owned instruments, rental of a piano for events, and procurement of piano chairs, piano benches, lamps and other accessories.
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3.8/5

Alfons Amweg Klavierbauermeister

Trust & reputation

ranQ Trust Score of Alfons Amweg Klavierbauermeister: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Alfons Amweg Klavierbauermeister scores 49.8 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.68.224%
  • 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: 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.35.08%
Alfons Amweg Klavierbauermeister scores 78.5 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.55.07%
Alfons Amweg Klavierbauermeister 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%
Alfons Amweg Klavierbauermeister scores 10.0 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 35.10.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Alfons Amweg Klavierbauermeister reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Spitzenwiesstrasse 7
8645 Jona

At a glance

Legal form
Sole proprietorship
UID
CHE-113.425.728
Founded
2007 · 19 years
Last commercial register change
February 13, 2007
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.67.06%
  • 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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