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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesSchlierenDober AG
Dober AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Dober AG carries out building services engineering projects and provides plant construction and technical service. Its offerings include planning, installation, maintenance and renovation for heating/cooling, sanitary systems, ventilation/air conditioning and bathroom refurbishments.

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Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered6
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4.3/5

Dober AG

Systems engineering / Service
Planning, installation, maintenance and renovation of building services projects; implementation of individual trades or complete processes for new builds and existing buildings.
Sanitary
Advice, planning, installation and maintenance of sanitary systems; implementation and long-term reliable operation for projects in Schlieren and the surrounding area.
Heating/Cooling
Advice, planning and installation of heating and cooling systems for new builds and renovations; solutions for different buildings and sustainable implementation.
Heating replacement
Complete heating renovation when replacing oil or gas heating systems, including conversion to a heat pump, as well as advice on renewable energies and energy optimisation.
Bathroom remodeling
Bathroom remodeling from a single source with full support and coordination of all steps of bathroom renovation, from planning to implementation.
Ventilation/Air conditioning
Advice, planning and installation of ventilation and air-conditioning systems for commercial premises, apartments, service businesses and institutions.
Trust & reputation

ranQ Trust Score of Dober AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 100% · As of October 2026

Dober AG scores 78.3 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.72.824%
  • 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.91.810%
  • 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.78.08%
Dober AG scores 82.3 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.92.512%
  • 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%
Dober 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%
Dober AG scores 55.0 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 35.100.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Dober AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.5 out of 5 stars from 36 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.5
of 5

Aggregated from 36 reviews across all connected sources

Sources
GGoogle4.536
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

February 5, 2018Media
Hälg-Gruppe übernimmt Dober AG
baublatt.ch

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Location

Friedaustrasse 6
8952 Schlieren
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
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-258.412.237
Founded
2014 · 12 years
Last commercial register change
April 13, 2026
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

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