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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesSt. GallenkappelHaustechnikservice M. Oberholzer GmbH
Haustechnikservice M. Oberholzer GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Haustechnikservice M. Oberholzer GmbH is the provision of services in the field of building technology, particularly: Sanitary installations, Bathroom renovations, Boiler decalcification and replacement, Water treatment, Repairs and maintenance of building technology systems, Emergency service for building technology problems, Planning and implementation of building technology projects, including 3D bathroom planning and renovation of outdoor facilities. The company thus offers comprehensive services for the installation, maintenance and repair of building technology systems.

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Offering

Products & services

Industry:Plumbing & Building Services
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4.0/5

Haustechnikservice M. Oberholzer GmbH

✓ Offered8
Plumbing installations
Plumbing installations for new builds and renovations, including installation of sanitary fixtures and work on taps, drains, WCs and boilers.
Bathroom renovations
Bathroom renovations and bathroom makeovers with a 3-D floor plan visualising the future bathroom.
Repairs and plumbing service
Repairs, service and maintenance for dripping taps, clogged drains, running WCs and limescale build-up in boilers; expert installation of purchased sanitary fixtures.
Limescale removal and boiler replacement
Regular boiler descaling, including a recommendation every five years, as well as boiler replacements when needed.
Water treatment
Water treatment for the sanitary house installation and water quality in the building.
Maintenance and inspection subscriptions
Subscriptions including seal checks for all taps, checks of all drains and descaling checks; on request also according to individual specifications.
Emergency service
Emergency service also outside regular working hours, with a dedicated emergency number for urgent sanitary and building services issues.
Planning
Planning of sanitary and bathroom projects as part of new builds and renovations.
Trust & reputation

ranQ Trust Score of Haustechnikservice M. Oberholzer GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Haustechnikservice M. Oberholzer GmbH scores 62.0 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.70.824%
  • 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.27.910%
  • 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.78.08%
Haustechnikservice M. Oberholzer GmbH scores 80.9 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.95.212%
  • 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%
Haustechnikservice M. Oberholzer 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%
Haustechnikservice M. Oberholzer GmbH scores 6.0 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 35.6.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Haustechnikservice M. Oberholzer GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 2 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 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Bauwilerweg 3
8735 St. Gallenkappel
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-224.664.462
Founded
2013 · 13 years
Last commercial register change
April 12, 2013
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.88.06%
  • 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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