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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceBaselGeba-Service AG
Geba-Service AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Geba-Service AG is the planning, installation, maintenance and repair of heating systems, including oil and gas heating systems, heat pumps, solar heating systems and district heating. In addition, the company offers further services such as tank revisions, burner revisions, boiler descaling and exhaust gas measurements.

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Offering

Products & services

Industry:Building MaintenancePlumbing & Building Services
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Geba-Service AG

✓ Offered7
Heating systems
Heating systems for oil, gas, heat pumps, solar heating and district heating; including installation, maintenance and adaptation to existing systems.
Chimney renovation & optimization
Chimney renovations, flue gas systems made of stainless steel or plastic, and heat exchangers for heat recovery and reduced energy consumption.
24-hour emergency standby service
24-hour emergency standby service 365 days a year for heating faults, leaking boilers and smoke or oil incidents.
Tank inspections
Inspections of tank installations, internal cleaning, conversion to double-walled construction, functional checks and maintenance under subscription.
Oil and gas burner inspections
Inspection, cleaning and functional testing of burners, replacement of nozzles, filters and electrodes, as well as measuring and regulating flue gases.
Boiler descaling
Chemical and mechanical boiler descaling in the Basel area, including inspection and replacement of worn or calcified protective anodes.
Flue gas measurements
Flue gas measurements for oil and gas heating systems according to BAFU requirements and the Air Pollution Control Ordinance, including checking limit values and flue gas losses.
Trust & reputation

ranQ Trust Score of Geba-Service AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Geba-Service AG scores 66.3 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.77.424%
  • 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.52.910%
  • 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%
Geba-Service 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%
Geba-Service AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Geba-Service AG scores 4.9 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 35.4.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Geba-Service AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.9 out of 5 stars from 7 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 7 reviews across all connected sources

Sources
GGoogle4.97
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Malzgasse 26
4052 Basel
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Corporation
UID
CHE-107.734.629
Founded
1955 · 71 years
Last commercial register change
September 12, 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

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