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DirectoryRetail & CommerceBookstoreBurgdorfMartin Schwertfeger - Trommelbau
Martin Schwertfeger - Trommelbau Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Martin Schwertfeger - Trommelbau makes and sells wooden and metal drums, along with accessories and spare parts. Services include advice, repairs and custom modifications.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Bookstore
✓ Offered7
Drums
Drums made of wood, aluminium and aluminium or brass (Basler drum), plus junior drums and new instrument fittings for clubs or series production.
Consulting
Individual, personal consulting on drums, workmanship and quality, so that a product meets your wishes and needs.
Repairs
Repairs on drums, including fitting new drumheads, adjusting or mounting strings, and bracing and straightening drums.
Conversion and modifications
Conversions and changes to drums, such as a new string lock, new hoops, heraldry on the shell, or other custom adjustments.
Accessories
Accessories for drums, including cases, covers, bags, rain covers, clamps, bandoliers, carrying straps, carrying braids, harnesses, hoop protectors and internal dampers.
Spare parts
Spare parts for drums, including drumheads, ropes, strings, string locks, replacement screws and lock nuts.
Outlet
Outlet with discounted drum accessories such as knee bags and mallet bags in various designs.
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4.0/5

Martin Schwertfeger - Trommelbau

Trust & reputation

ranQ Trust Score of Martin Schwertfeger - Trommelbau: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of November 2026

Martin Schwertfeger - Trommelbau scores 71.3 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.79.424%
  • 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.52.910%
  • 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.70.08%
Martin Schwertfeger - Trommelbau scores 63.3 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.64.612%
  • 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%
Martin Schwertfeger - Trommelbau scores 86.7 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).86.722%
Martin Schwertfeger - Trommelbau scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Martin Schwertfeger - Trommelbau reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 7 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle57
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Dammstrasse 10
3400 Burgdorf
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Sole proprietorship
UID
CHE-108.263.087
Founded
2021 · 5 years
Last commercial register change
February 23, 2024
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • BEBurgdorf
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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