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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryCrafts & TradesAir conditioningLiestalPaul Weber AG
Paul Weber AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Paul Weber AG plans and installs plumbing, heating and ventilation systems for buildings. Its services include water treatment, a range of heating systems, residential ventilation, solar thermal systems and photovoltaics.

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Presence

Service area

Offering

Products & services

Industry:Air conditioningHeating installer
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Paul Weber AG

Plumber
✓ Offered4
Sanitary services
Renovation and new-build work, bathroom refurbishments, water treatment, rainwater use and water heating, pressure boosting systems, wastewater pumping systems and 3D bathroom design.
Heating services
Planning and installation of oil and gas heating systems, heat pumps and pellet heating systems, as well as energy consulting, heat-demand calculations, boiler replacements and heating-system flushing.
Ventilation services
Controlled residential ventilation, energy-efficient comfort ventilation, compressed-air systems and heat-recovery systems, including planning, installation and maintenance.
Solar and photovoltaic services
Solar thermal systems and photovoltaics for hot-water production, heating support, swimming-pool heating and electricity generation, as well as system checks, module cleaning and thermographic inspection.
Trust & reputation

ranQ Trust Score of Paul Weber AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of November 2026

Paul Weber AG scores 64.4 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.65.024%
  • 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.58.610%
  • 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.70.08%
Paul Weber AG scores 85.5 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.55.07%
Paul Weber AG scores 86.7 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).86.722%
Paul Weber AG scores 5.4 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 35.5.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Paul Weber AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.3 out of 5 stars from 9 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.3
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle4.39
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Lausenerstrasse 14
4410 Liestal
Opening hours
Mon
08:00 - 12:00, 13:30 - 16:30
Tue
08:00 - 12:00, 13:30 - 16:30
Wed
08:00 - 12:00, 13:30 - 16:30
Thu
08:00 - 12:00, 13:30 - 16:30
Fri
08:00 - 12:00, 13:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-110.252.503
Founded
2003 · 23 years
Last commercial register change
February 5, 2024
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.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

    Active in 1 of 26 cantons · 14 municipalities

    • Bezirk Liestal

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