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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumberOstermundigenLuma Haustechnik
Luma Haustechnik Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Luma Haustechnik is the planning, installation, maintenance and repair of heating, ventilation and sanitary systems, as well as the provision of services such as boiler descaling.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Plumber
✓ Offered5
Heating
Planning, installation and maintenance of heating systems such as heat pumps, gas heating systems, solar and underfloor heating; including advice, commissioning and service.
Sanitary
Consulting, planning and execution of sanitary renovations, bathroom refurbishments, modernisation of laundry rooms, potable water installations, rainwater use, water softening systems and service lines.
Ventilation
Solutions for apartment ventilation, commercial and industrial ventilation as well as air-conditioning systems; planning and implementation for living and working spaces.
Service and maintenance
Maintenance, servicing, repairs, optimisation and modernisation of heating and ventilation systems; on request with service contracts and monitoring of appointments.
Boiler descaling
Regular descaling of domestic hot-water boilers to extend service life, improve efficiency and reduce energy costs.
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3.9/5

Luma Haustechnik

Trust & reputation

ranQ Trust Score of Luma Haustechnik: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

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Data basis 54% · As of November 2026

Luma Haustechnik 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.
x
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%
Luma Haustechnik scores 63.3 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.64.612%
  • 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%
Luma Haustechnik scores 85.0 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).85.022%
Luma Haustechnik scores 4.3 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.4.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Luma Haustechnik reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». 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 November 2026.

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

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Location

Dennigkofenweg 184b
3072 Ostermundigen

At a glance

Legal form
Sole proprietorship
UID
CHE-200.821.268
Founded
2021 · 5 years
Last commercial register change
September 8, 2025
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • BEOstermundigen
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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