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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesZurichBunjaku Haustechnik
Bunjaku Haustechnik Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Bunjaku Haustechnik provides services in heating, refrigeration, sanitary installations, gas and water systems, and renewable energy, and operates an on-call (piket) service for emergencies. Services include planning, installation, maintenance and repair of building services systems.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered7
Heating technology
Planning and installation of heating systems, heating equipment and heating installations; maintenance and repair of heating systems, including gas-fired boilers, heat pumps and solar heating systems.
Plumbing
Installation of sanitary facilities and fixtures, pipework service and bathroom renovations; plus maintenance and repair services for private, commercial and industrial systems.
Water technology
Installation, maintenance and repair of water treatment plants, pumps and filters; plus water softening systems, reverse osmosis systems and swimming pool technology.
Refrigeration technology
Planning, installation and maintenance of refrigeration systems and cooling systems for commercial, industrial and private households; energy-efficient solutions with natural refrigerants.
Renewable energy
Planning, installation and maintenance of solar systems; solutions for solar energy for private households and commercial businesses, including support with legal requirements.
On-call service
24-hour on-call service and emergency service for installation, maintenance and repair; telephone assistance or response on site for unexpected problems and breakdowns.
Gas
Installation of gas heating systems as well as maintenance and repair; support throughout the entire process with a focus on long service life and efficiency of the systems.
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3.8/5

Bunjaku Haustechnik

Trust & reputation

ranQ Trust Score of Bunjaku Haustechnik: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 88% · As of October 2026

Bunjaku Haustechnik scores 53.3 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.68.224%
  • 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.17.610%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Bunjaku Haustechnik scores 72.7 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.86.512%
  • 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%
Bunjaku Haustechnik 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%
Bunjaku Haustechnik scores 0.6 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 35.0.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bunjaku Haustechnik reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 customer reviews. The data basis is 88%, 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
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Albisriederstrasse 126
8003 Zurich
Opening hours
Mon
06:30 - 17:30
Tue
06:30 - 17:30
Wed
06:30 - 17:30
Thu
06:30 - 17:30
Fri
06:30 - 17:30
Sat
06:30 - 17:30
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-215.938.459
Founded
2016 · 10 years
Last commercial register change
September 5, 2017
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.
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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