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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,837 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesRepair of Consumer GoodsUerikonPiano Concept Christian Tietz
Piano Concept Christian Tietz Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Piano Concept is the maintenance, repair and sale of pianos and grand pianos, including tuning and personal consulting.

AI-generated
Offering

Products & services

Industry:Repair of Consumer Goods
✓ Offered4
Piano Tuning
Professional tuning of pianos and grand pianos, annual inspection, minor defect rectification on site, and care advice for the instrument.
Piano Repair and Maintenance
Repairs and maintenance for pianos and grand pianos, expert assessment, quotation, work in the workshop or on site, and transport coordination.
Consulting for Pianos and Grand Pianos
Advice on new purchases, transport, location, humidity, value retention, rental, buying, selling, as well as technical and tonal questions.
Sales and Rental of Pianos and Grand Pianos
Sales and rental of new and used instruments, used instruments with 3 years' guarantee, new instruments with 5 years' guarantee, and assistance with the purchase.
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4.1/5

Piano Concept Christian Tietz

Trust & reputation

ranQ Trust Score of Piano Concept Christian Tietz: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Piano Concept Christian Tietz scores 71.6 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.72.924%
  • 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.63.210%
  • 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%
Piano Concept Christian Tietz 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%
Piano Concept Christian Tietz 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%
Piano Concept Christian Tietz scores 11.7 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 35.11.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Piano Concept Christian Tietz reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.6 out of 5 stars from 11 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
4.6
of 5

Aggregated from 11 reviews across all connected sources

Sources
GGoogle4.611
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Fangenstrasse 13
8713 Uerikon
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-114.292.803
Founded
2009 · 17 years
Last commercial register change
January 4, 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.
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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