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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesOberägeriRainer Rapp AG
Rainer Rapp AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Rainer Rapp AG is the installation, maintenance and repair of sanitary facilities and heating systems. The company offers services in the areas of sanitation and heating and employs correspondingly qualified personnel, such as sanitary masters, heating masters and sanitary installers.

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Offering

Products & services

Industry:Plumbing & Building ServicesSolar & Photovoltaics
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4.3/5

Rainer Rapp AG

✓ Offered4
Plumbing installations
Sanitary installations, new builds, planning and execution, renovations and refurbishments, water treatment, service lines, rainwater systems, pressure boosting systems, hot- and cold-water supply lines, sewer systems, sewage pumps, household appliances.
Heating installations
Heating installations, heating refurbishments, heat-pump heating systems, wood heating systems, underfloor and radiator heating, gas heating systems, district heating supply, heat meters, coordination of building services installations.
Solar systems
Solar systems for sanitary and heating systems, in connection with heating installations, sanitary installations and water treatment.
Repair and service work
Repair and service work for sanitary and heating systems as well as replacement and delivery of household appliances.
Trust & reputation

ranQ Trust Score of Rainer Rapp AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 100% · As of October 2026

Rainer Rapp AG scores 84.8 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.80.124%
  • 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.88.110%
  • 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.95.08%
Rainer Rapp AG scores 89.3 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.100.012%
  • 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.70.07%
Rainer Rapp AG scores 86.7 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).86.722%
Rainer Rapp AG scores 15.0 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 35.10.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.20.04%
Qualifications+0.00

Rainer Rapp AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 31 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.7
of 5

Aggregated from 31 reviews across all connected sources

Sources
GGoogle4.731
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

November 17, 2023Media
Oberägeri: Rapp-Sanitärmeisterin führt Unternehmen in dritter Generation
zugerzeitung.ch
December 29, 2017Media
OBERÄGERI: Eine Meisterin im Männerberuf
zugerzeitung.ch

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Location

Poststrasse 5
6315 Oberägeri

At a glance

Legal form
Corporation
UID
CHE-114.899.738
Founded
2009 · 17 years
Last commercial register change
December 11, 2017
Employees
11 to 20
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.
100.0
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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