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
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSpecialized Construction ActivitiesBreitenbachO. Jeker AG
O. Jeker AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company is a family-run business specializing in the planning, installation, maintenance, and renovation of building technology systems. The core activities include: Heating: construction, renovation, and maintenance of heating systems based on fossil fuels (oil, gas, wood) and renewable energy (heat pumps, wood heating systems, solar energy systems); Sanitation: installation and maintenance of sanitary systems; Rainwater management and irrigation management: planning and installation of systems for the use and management of rainwater; Swimming pool technology: planning and installation of swimming pool systems; Building technology: planning and installation of complete building technology systems. The company offers comprehensive services, from consulting and planning to installation and assembly, as well as maintenance and repair of building technology systems.

AI-generated
Offering

Products & services

Industry:Specialized Construction Activities
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
4.6/5

O. Jeker AG

Plumbing & Building Services
✓ Offered6
Heating
New builds and conversions, renovation of heating systems, heat pumps, wood heating systems, solar energy systems, as well as service, maintenance, hydraulic balancing, emergency heating and maintenance contracts.
Sanitary
New builds and conversions, bathroom renovations, water treatment, wellness facilities, as well as service and maintenance including descaling, pipe cleaning, repairs and restoration after water damage.
Swimming pool
New builds and conversions of swimming pools, prefabricated swimming pools, concrete and stainless-steel basins, automatic water care, heat pumps, accessories, as well as service, maintenance and winterization.
Air conditioning
Planning and installation of air-conditioning systems for single- and multi-family houses, retrofitting and optimization, cooling and heating, air dehumidification and air purification, as well as maintenance and repairs.
Planning
Consulting, CAD planning for sanitary, heating and swimming pools, energy concepts, condition analyses, energy certificates, submission packages for building permits, tenders and initial advisory support.
Service and maintenance
Regular maintenance, individual maintenance schedules and service contracts for heating systems, sanitary facilities, air-conditioning systems, swimming pools and other building services, with monitoring of maintenance intervals.
Trust & reputation

ranQ Trust Score of O. Jeker AG: 4.6 out of 5.0

Trust Score4.6/ 5.0

Excellent

x

Data basis 96% · As of October 2026

O. Jeker AG scores 94.3 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.90.024%
  • 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.100.010%
  • 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.100.08%
O. Jeker 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%
O. Jeker 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%
O. Jeker AG scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

O. Jeker AG reaches a ranQ Trust Score of 4.6 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.9 out of 5 stars from 50 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 50 reviews across all connected sources

Sources
GGoogle4.950
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

No knowledge articles yet

Once O. Jeker AG has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

O. Jeker AG in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank O. Jeker AG by reviews, experience and specialisations.

Is this your company?

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

Secure profile

Location

Neumattstrasse 60
4226 Breitenbach
Opening hours
Mon
07:00 - 12:00, 13:00 - 16:30
Tue
07:00 - 12:00, 13:00 - 16:30
Wed
07:00 - 12:00, 13:00 - 16:30
Thu
07:00 - 12:00, 13:00 - 16:30
Fri
07:00 - 12:00, 13:00 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-114.925.672
Founded
2009 · 17 years
Last commercial register change
October 7, 2021
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

    Similar companies

    AS
    Aqua Sentio GmbH
    Obergerlafingen
    OB
    Ocean Blue Pools GmbH
    Etziken
    AA
    Air-Haustechnik AG
    Bettlach
    PG
    Poolnow GmbH
    Oberbuchsiten
    JB
    Jensen Bau + Technik
    Gerlafingen
    NG
    Nima GmbH Wellnesspools.ch
    Grenchen
    TG
    Tima Gebäudetechnik GmbH
    Schönenwerd
    HA
    helveticont AG
    Nunningen