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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementBaarBL Haustechnik GmbH
BL Haustechnik GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

BL Haustechnik GmbH plans, installs and maintains building services systems in the areas of heating, ventilation, plumbing, climate and solar. The company also offers building services coordination as well as maintenance and repair work.

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Offering

Products & services

Industry:Construction & Project ManagementPlumbing & Building Services
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3.6/5

BL Haustechnik GmbH

5
Heating installations and heating modernization
Planning, refurbishment and replacement of heating systems; gas, oil, pellet, heat pump, solar and electric heating, plus underfloor, wall and radiator solutions.
Sanitary planning and bathroom renovation
Planning, supply and installation of sanitary systems and bathrooms; conversions, renovations, barrier-free bathrooms, repairs, maintenance and descaling.
Ventilation systems
Residential ventilation for new buildings and renovated older properties; central and decentralized systems to protect against humidity and mold.
Building services planning
Planning for sanitary, heating and ventilation systems, plus overall coordination of building services for new construction, conversion and modernization.
Maintenance and repair of building services
Maintenance, repair and upkeep of building services equipment; service for systems plus technical facility management for property managers and companies.
Trust & reputation

ranQ Trust Score of BL Haustechnik GmbH: 3.6 out of 5.0

Trust Score3.6/ 5.0

Solid

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Data basis 54% · As of October 2026

BL Haustechnik GmbH has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
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CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
BL Haustechnik GmbH scores 48.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.25.012%
  • 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.55.07%
BL Haustechnik GmbH scores 83.3 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).83.322%
BL Haustechnik GmbH scores 0.9 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 35.0.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

BL Haustechnik GmbH reaches a ranQ Trust Score of 3.6 out of 5.0 — rated «Solid». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Hier entsteht die Karte
Sihlbruggstrasse 105
6340 Baar

At a glance

Legal form
Branch
UID
CHE-320.765.509
Founded
2025 · 1 year
Last commercial register change
December 5, 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.
76.0
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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