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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesMetal ConstructionSt. Margrethen SgSchwalm AG
Schwalm AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Schwalm AG is the planning, manufacturing and installation of chimneys, flue and ventilation pipes as well as industrial chimneys, including fire protection solutions.

AI-generated
Offering

Products & services

Industry:Metal Construction
✓ Offered4
Chimney construction
Chimney systems for new builds, chimney refurbishments, façade chimneys, chimneys for emergency power systems, CHP units, steam boiler systems, wood-heating systems, and also fireplaces, Swedish stoves and freestanding chimney systems.
Exhaust and supply-air ducts
Exhaust-air ducts, external exhaust-air towers and exhaust systems in chrome-nickel steel, cylindrical or conical, for indoor and outdoor use as well as for humid, acid-containing or condensate-tight applications.
Industrial chimneys
Exhaust chimneys, tall chimneys and specialised industrial chimneys for industry and commercial use; planning, design, installation and maintenance even for projects over 100 metres in height.
Fire protection
Fire-protection shafts and fire-protection ducts for exhaust systems and chimney construction, including renovation, approval and execution in accordance with SIA standards and fire-protection guidelines.
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4.1/5

Schwalm AG

Trust & reputation

ranQ Trust Score of Schwalm AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

Schwalm AG scores 71.1 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.69.424%
  • 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.55.910%
  • 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.95.08%
Schwalm AG scores 89.3 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.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.70.07%
Schwalm 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%
Schwalm AG scores 17.7 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 35.28.64%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.6.74%
Qualifications+0.00

Schwalm AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.5 out of 5 stars from 8 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.5
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle4.58
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

October 12, 2019Media
Sonja Kamber in Ruhestand verabschiedet
rheintaler.ch

Knowledge

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Location

Walzenhauserstrasse 9
9430 St. Margrethen Sg
Opening hours
Mon
07:15 - 12:00, 13:15 - 17:00
Tue
07:15 - 12:00, 13:15 - 17:00
Wed
07:15 - 12:00, 13:15 - 17:00
Thu
07:15 - 12:00, 13:15 - 17:00
Fri
07:15 - 12:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.365.593
Founded
1992 · 34 years
Last commercial register change
October 1, 2026
Employees
11 to 20
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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