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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,837 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesLangenthalWalter Uebersax AG
Walter Uebersax AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Walter Uebersax AG is the planning, installation, maintenance and repair of heating and energy technology systems, including consulting and planning of building technology projects.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered4
Advisory & planning
Energy declarations, building permit applications, heat cost statements as well as project, tender and execution planning; in addition, applications and processing of subsidies.
Execution & installations
Heat pumps, wood heating systems, thermal solar installations, underfloor heating, TABS, radiator heating systems, ceiling radiant panels, connection to heat networks and to district heating networks.
Maintenance & service
Maintenance of oil and gas heating systems with maintenance contracts, flushing of underfloor heating systems, descaling of boilers as well as repairs and inspections of components.
Training company
Training apprentices as heating installer EFZ, heating technician EBA and building services planner heating EFZ as an additional apprenticeship.
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4.0/5

Walter Uebersax AG

Trust & reputation

ranQ Trust Score of Walter Uebersax AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 100% · As of October 2026

Walter Uebersax AG scores 60.5 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.72.124%
  • 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.40.910%
  • 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.50.08%
Walter Uebersax AG 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%
Walter Uebersax 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%
Walter Uebersax AG scores 8.6 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 35.17.14%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

Walter Uebersax AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.8 out of 5 stars from 4 customer reviews. 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 4 reviews across all connected sources

Sources
GGoogle4.84
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

August 14, 2019Media
Mit neuem Team tüchtig «einheizen»
dregion.ch

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Location

Steinackerweg 14
4900 Langenthal
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.151.758
Founded
1997 · 29 years
Last commercial register change
June 16, 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.70.03%
    • Full methodology

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