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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryCrafts & TradesHeating installerGamsenBrennwall AG
Brennwall AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Brennwall AG provides maintenance, servicing and commissioning for heat generation systems. Its services cover heat pumps, wood-fired heating and oil- and gas-fired systems, as well as remote monitoring.

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Service area

Offering

Products & services

Industry:Heating installer
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3.9/5

Brennwall AG

✓ Offered3
Maintenance & Service
Service for heat pumps, wood heating systems, and oil and gas burners; maintenance for efficient, safe operation of modern heat generation systems.
Commissioning
Commissioning of systems sold and installed via partners; compliant, on-time initial start-up of heating systems.
Remote monitoring
Remote monitoring of heating systems for ongoing operational supervision, early fault detection, and remote support.
Trust & reputation

ranQ Trust Score of Brennwall AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of November 2026

Brennwall AG scores 71.2 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.76.824%
  • 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.58.610%
  • 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.70.08%
Brennwall AG scores 59.7 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.39.612%
  • 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%
Brennwall AG 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%
Brennwall AG scores 14.0 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 35.14.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Brennwall AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.8 out of 5 stars from 9 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
4.8
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle4.89
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Kantonsstrasse 407
3900 Gamsen
Opening hours
Mon
07:30 - 11:30
Tue
07:30 - 11:30
Wed
07:30 - 11:30
Thu
07:30 - 11:30
Fri
07:30 - 11:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-195.773.199
Founded
2024 · 2 years
Last commercial register change
October 31, 2025
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • VSBrig-Glis
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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