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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesSchwarzhäusernHaustechnik Bammann
Haustechnik Bammann Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Haustechnik Bammann includes the planning, installation and maintenance of sanitary facilities, heating systems, solar thermal systems and sealing technology. This also includes renovations and refurbishments of bathrooms and kitchens, including project management and coordination of masonry and tiling work. The company also offers an emergency service for sanitary and heating emergencies.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered5
Heat pumps & modern heating systems
Planning and implementing modern heating solutions tailored to the building, usage and existing systems; clean integration into existing installations and long-term reliable performance.
Heating service, maintenance & repairs
Reliable servicing as well as professional maintenance and repairs for safe and efficient operation; faults should be detected early and the system operated in a way that preserves its value.
Renovation & optimisation of existing systems
Increased efficiency and modernization of existing heating systems without unnecessary interventions; targeted measures to reduce costs and improve performance.
Sanitary installations
Professional installation of sanitary systems for conversions, renovations or new builds; clean workmanship and reliable function in everyday use.
Sanitary service & repairs
Fast and clean service and repair work in the sanitary sector; reliable solutions for installations that work properly in everyday life.
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4.3/5

Haustechnik Bammann

Trust & reputation

ranQ Trust Score of Haustechnik Bammann: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Haustechnik Bammann scores 90.9 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.92.024%
  • 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.90.410%
  • 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.88.08%
Haustechnik Bammann scores 71.2 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.83.012%
  • 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%
Haustechnik Bammann 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%
Haustechnik Bammann scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Haustechnik Bammann reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 34 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
5
of 5

Aggregated from 34 reviews across all connected sources

Sources
GGoogle534
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rufshausenstrasse 27
4911 Schwarzhäusern
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-193.465.410
Founded
2017 · 9 years
Last commercial register change
January 10, 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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