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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesOberkirch LuGähwiler AG Wasseraufbereitung und Sanitärarmaturen
Gähwiler AG Wasseraufbereitung und Sanitärarmaturen Logo
Verified· 4 sourcesOwner confirmed
Last updatedSeptember 9, 2026
Summary

About the company

The core activity of the company is water treatment, in particular the development and manufacture of plants for water softening, filtration and dosing technology, as well as related service and repair services.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered10
Water softening systems
Water softening systems for single-family homes, multi-family buildings, as well as commercial and industrial use; ion exchange to reduce limescale, protection against scaling and lower cleaning effort.
Filtration technology
Filter systems for drinking and process water; fine filters, activated carbon filters, reverse osmosis, full and partial desalination, UV disinfection and dirt filters for cleaner water.
Dosing technology
Dosing systems against rust, pitting corrosion and corrosion; protection of water pipes and hot water systems, often combined with water softening systems.
Service & repairs
Maintenance, cleaning, disinfection, commissioning and repair service for water treatment systems; annual service and service subscription for water softening systems.
Activated carbon filters
Activated carbon filters to reduce harmful substances and taste impairments in water, including installation and annual filter replacement.
Reverse osmosis systems
Reverse osmosis systems for pure water in industry, commercial applications and catering; protection of steam systems, cooling systems and kitchen appliances.
UV disinfection systems
UV disinfection systems for natural water disinfection without chemicals; destruction of germs, viruses and bacteria.
Deionizing cartridge systems
Full and partial desalination cartridges for high-purity water; used in laboratories and industry, also for decarbonization or nitrate removal.
Fine filters
Drinking water protection filters against particles from pipework; protection against damage to taps, washing and dishwashers as well as clogged shower heads.
Accessories for water treatment systems
Connecting fittings, stainless steel corrugated hoses, water hardness test kits and other accessories for water treatment systems.
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Trust Score4.6/5

Gähwiler AG Wasseraufbereitung und Sanitärarmaturen

Trust & reputation

ranQ Trust Score of Gähwiler AG Wasseraufbereitung und Sanitärarmaturen: 4.6 out of 5.0

Trust Score4.6/ 5.0

Excellent

x

Data basis 96% · As of October 2026

Gähwiler AG Wasseraufbereitung und Sanitärarmaturen scores 91.4 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.86.724%
  • 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.100.010%
  • 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%
Gähwiler AG Wasseraufbereitung und Sanitärarmaturen 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%
Gähwiler AG Wasseraufbereitung und Sanitärarmaturen scores 90.0 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).90.022%
Gähwiler AG Wasseraufbereitung und Sanitärarmaturen scores 74.3 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 35.74.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gähwiler AG Wasseraufbereitung und Sanitärarmaturen reaches a ranQ Trust Score of 4.6 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.8 out of 5 stars from 66 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
4.8
of 5

Aggregated from 66 reviews across all connected sources

Sources
GGoogle4.866
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Contact

Location

Länggasse 7
6208 Oberkirch Lu
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-102.896.868
Founded
1996 · 30 years
Last commercial register change
March 12, 2026
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.100.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology