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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesRheinfeldenGersbach AG
Gersbach AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Gersbach AG consists of planning, installing and maintaining sanitary facilities and heating systems, including bathroom renovations, boiler replacements, radiator and floor heating systems, as well as consulting and implementing energy-saving measures.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered8
Sanitary installations
Sanitary installations for bathrooms, WC, kitchen and laundry rooms: cold and hot water installations, wastewater, rainwater, service lines, as well as gas and compressed-air lines.
Bathroom renovation
Bathroom conversions and bathroom renovations from planning to completion: measurements, 3D planning, coordination of trades, selection of fixtures and professional installation.
Barrier-free and age-friendly bathroom
Barrier-free, age-friendly bathrooms with under-ride washbasins, mirrors, taps, shower seats and grab bars for greater safety, functionality and freedom of movement.
Heating systems
Heating systems for new builds and upgrades: custom heat generation with energy-saving, low-emission systems and solutions using a heat pump or solar system.
Boiler replacement
Boiler replacement with consultation, comparison of options, detailed planning, coordination of execution and conversion to alternative energies such as heat pumps, solar energy or wood.
Radiator and underfloor heating
Radiator and underfloor heating with standard and designer radiators as well as floor heating; can be combined on request and is tailored to living comfort, architecture and thermal comfort.
Grants and advice
Advice on energy upgrades and grants; heating check with site visit, assessment of heat generation, heat distribution and domestic hot water heating.
Service and repairs
Service, repairs and maintenance for sanitary and heating systems; troubleshooting, installation of systems, maintenance, modernisation, drain clearing and boiler descaling.
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4.1/5

Gersbach AG

Trust & reputation

ranQ Trust Score of Gersbach AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Gersbach AG 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%
Gersbach AG scores 92.3 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.82.07%
Gersbach AG scores 83.3 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).83.322%
Gersbach AG scores 31.4 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 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gersbach AG reaches a ranQ Trust Score of 4.1 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 October 2026.

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

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Location

Gerstenweg 1
4310 Rheinfelden

At a glance

Legal form
Corporation
UID
CHE-107.114.177
Founded
1987 · 39 years
Last commercial register change
September 12, 2025
Employees
21 to 50
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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