ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The leading AI company directory, built to boost AI visibility.

DEENFRIT
Product
  • Pricing
  • Directory
  • Industries
  • Trust Score
Company
  • About
  • Partner program
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesSt. Margrethen SgWWS Wärme- Wassertechnik AG
WWS Wärme- Wassertechnik AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of WWS Wärme- Wassertechnik AG encompasses the planning, execution and maintenance of projects in the areas of heating, sanitation, heat and water technology, including new construction, renovation, service work, repairs, industrial and public buildings as well as pipeline construction. The company offers comprehensive solutions based on the latest technology and focuses on cost-effective, environmentally friendly and alternative heating systems such as heat pumps and solar systems.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered5
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
4.5/5

WWS Wärme- Wassertechnik AG

Heating installations
Heating installations for new builds, renovations and large housing developments, including repair and service work, full refurbishments, and heat pump, solar, wood and condensing boiler technology.
Plumbing installations
Plumbing installations for new builds and renovations, repairs and service work, bathroom refurbishments, complete plumbing systems, as well as solutions for water and wastewater systems.
Pipelines construction
Pipelines construction for supply and disposal lines, load-resistant and functional pipework systems for municipal utilities and industrial facilities.
Service and repair work
Service and repair work for heating and plumbing installations, troubleshooting of technical faults, maintenance, and emergency service outside business hours.
Design and execution of building services projects
Conceptualisation, design and execution of demanding projects in the fields of heating and plumbing, from the idea through to implementation.
Trust & reputation

ranQ Trust Score of WWS Wärme- Wassertechnik AG: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of October 2026

WWS Wärme- Wassertechnik AG scores 85.6 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.85.324%
  • 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.78.610%
  • 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%
WWS Wärme- Wassertechnik AG scores 92.5 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%
WWS Wärme- Wassertechnik AG 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%
WWS Wärme- Wassertechnik AG scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

WWS Wärme- Wassertechnik AG reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.9 out of 5 stars from 21 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
4.9
of 5

Aggregated from 21 reviews across all connected sources

Sources
GGoogle4.921
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

No knowledge articles yet

Once WWS Wärme- Wassertechnik AG has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

WWS Wärme- Wassertechnik AG in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank WWS Wärme- Wassertechnik AG by reviews, experience and specialisations.

Is this your company?

Claim the company profile of WWS Wärme- Wassertechnik AG to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Hauptstrasse 133
9430 St. Margrethen Sg
Opening hours
Mon
06:45 - 12:00, 13:00 - 17:00
Tue
06:45 - 12:00, 13:00 - 17:00
Wed
06:45 - 12:00, 13:00 - 17:00
Thu
06:45 - 12:00, 13:00 - 17:00
Fri
06:45 - 12:15
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.886.151
Founded
1978 · 48 years
Last commercial register change
February 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.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.100.03%
    • Full methodology

    Similar companies

    RH
    Rudi Haustechnik GmbH
    Mörschwil
    JJ
    Johann Jung AG
    Niederhelfenschwil
    KE
    kobelt energie GmbH
    Wil Sg
    WS
    Wettler Sanitär & Heizung AG
    Buchs Sg
    DA
    DORF-Lüftungstechnik AG
    Sennwald
    WS
    Wettler Sanitär & Heizung AG
    Grabs
    RH
    Rim Haustechnik GmbH
    Wangs
    OH
    Othmar Hämmerli AG
    Kaltbrunn