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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsGumefensBullag SA
Bullag SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Bullag SA is the supply and installation of fireplaces, stoves and other heating systems, including the dismantling, renovation and maintenance of these facilities. The company also offers the sale and installation of fireplaces, stoves and other heating systems and has a wide range of products from various brands.

AI-generated
Offering

Products & services

Industry:Specialized Construction Installations
✓ Offered5
Sale and installation of stoves
Sale and installation of wood, pellet, combined or hydraulic stoves, made of steel, stone, ceramic or concrete; wood ranges, pizza ovens and gas planchas.
Chimney creation
Supply and installation of chimney systems made of steel, ceramic or soapstone, with a view of the fire on one, two or three sides, and tunnel models.
Renovation of stoves and chimneys
Maintenance, restoration, servicing and repair of stoves and chimneys; replacement of firebox interiors, door seals, glass panels and paint.
Flue lining and chimney duct installation
Lining of existing flue gas ducts and installation of new ducts, discreet inside the building or on the façade.
Chimney dismantling, disposal, tiling and render
Dismantling of old living-room chimneys, removal of waste, installation of tiles, render or paint.
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3.9/5

Bullag SA

Trust & reputation

ranQ Trust Score of Bullag SA: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Bullag SA scores 59.3 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.45.024%
  • 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.61.010%
  • 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.100.08%
Bullag SA scores 76.6 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.79.212%
  • 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%
Bullag SA 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%
Bullag SA scores 31.4 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 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bullag SA reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 3.5 out of 5 stars from 10 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
3.5
of 5

Aggregated from 10 reviews across all connected sources

Sources
GGoogle3.510
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

En Palud 11
1643 Gumefens
Opening hours
Mon
08:00 - 11:30, 14:00 - 18:00
Tue
08:00 - 11:30, 14:00 - 18:00
Wed
08:00 - 11:30, 14:00 - 18:00
Thu
08:00 - 11:30, 14:00 - 18:00
Fri
08:00 - 11:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.768.261
Founded
2018 · 8 years
Last commercial register change
October 27, 2025
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.
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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