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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureExcavationSchwarzenbach SgBürge Kaminbau
Bürge Kaminbau Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Bürge AG involves the processing of high-quality pre-fabricated components into complex, high-functional systems, particularly in the areas of geothermal drilling, chimney construction, silencers, residential heating and chimney systems. The company also offers special custom-made products and in-house developments, and has a department dedicated to geothermal drilling.

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Service area

Offering

Products & services

Industry:ExcavationBuilding installation
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4.3/5

Bürge Kaminbau

✓ Offered3
Geothermal borehole drilling
Geothermal borehole drilling for geothermal projects, including site setup, drilling, insertion of the probe, leak-tightness testing, backfilling and connection work.
Chimney construction
Chimney construction for new builds and refurbishment, including planning, implementation, chimney repairs, flue pipe systems, fire-protection shafts, chimney refurbishments and custom fabrication.
Stove showroom and stove planning
Stove showroom with personal advice and planning for wood stoves, pellet stoves, Swedish stoves, soapstone stoves and fireplace stoves, as well as suitable turnkey solutions.
Trust & reputation

ranQ Trust Score of Bürge Kaminbau: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of November 2026

Bürge Kaminbau scores 79.9 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.79.324%
  • 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.82.910%
  • 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.78.08%
Bürge Kaminbau scores 82.2 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%
Bürge Kaminbau scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Bürge Kaminbau scores 57.1 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 35.57.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bürge Kaminbau reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 25 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
4.7
of 5

Aggregated from 25 reviews across all connected sources

Sources
GGoogle4.725
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Pfattstrasse 8
9536 Schwarzenbach Sg
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-107.581.159
Founded
1996 · 30 years
Last commercial register change
July 25, 2005
Employees
11 to 20

Active in 1 of 26 cantons

  • SGSt. Gallen
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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