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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryCrafts & TradesHeating installerPrattelnU. Amsler AG
U. Amsler AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

U. Amsler AG is a building services company specialising in plumbing, heating, sheet metal work and ventilation. It plans and coordinates work for new buildings and renovations, and provides installations, refurbishment and maintenance services.

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Service area

Offering

Products & services

Industry:Heating installerPlumber
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4.1/5

U. Amsler AG

Sheet metal worker
✓ Offered5
Planning
Planning of sanitary, heating, sheet metal and ventilation works; organisation and coordination of all companies involved in the construction site, as well as planning of new builds and renovations.
Plumbing work
Plumbing work in single-family homes, multi-family homes and commercial premises; installations, renovation of bathrooms and kitchens, boiler descaling, pipe cleaning, water-damage restoration and service work.
Heating installations
Heating installations in single-family homes, multi-family homes and commercial premises; installation and renovation, heat pumps, district heating, gas, oil and wood firing, solar technology as well as service work.
Sheet metal work
Sheet metal work, roof renovations and flat roof renovations, lightning protection systems, black roofs, building sheet metal work, sheet metal processing and cleaning of roof gutters.
Ventilation works
Ventilation works in single-family homes, multi-family homes and commercial premises; comfort ventilation systems, industrial ventilation systems and service work for a pleasant indoor living climate.
Trust & reputation

ranQ Trust Score of U. Amsler AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

U. Amsler 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%
U. Amsler 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%
U. Amsler 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%
U. Amsler AG scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

U. Amsler 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 November 2026.

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

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Location

Hauptstrasse 39
4133 Pratteln

At a glance

Legal form
Corporation
UID
CHE-108.111.483
Founded
1981 · 45 years
Last commercial register change
September 8, 2026
Employees
21 to 50

Active in 1 of 26 cantons

  • BLBasel-Country
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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