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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesCarouge GeStucker SA
Stucker SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of STUCKER SA is the provision of services in the field of heating, including: installation, maintenance and repair of heating systems; 24/7 emergency service; distribution of hot water and electricity; maintenance and monitoring of heating systems; installation of solar systems and heat pumps; renovation and revision of heating systems; and piping (pipeline construction). The company offers its customers a comprehensive range of services to ensure their comfort and safety in the field of heating.

AI-generated
Offering

Products & services

Industry:Plumbing & Building ServicesSpecialized Construction Installations
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3.8/5

Stucker SA

✓ Offered12
Emergency and Repair Service
24/7 emergency repair service for heating and hot-water failures; interventions by qualified technicians, with a tailored quote even in urgent cases.
Heating Distribution Maintenance and Monitoring
Maintenance and monitoring of heat distribution, focused on the mechanical components most heavily used in the system.
Hot Water Systems
Electric or solar hot-water production, including systems combined with central heating; installation and maintenance of hot-water systems.
Electrical Installations for Heating Systems
In-house electrical installations for heating-system assembly and repairs; increased autonomy, time savings and lower intervention costs.
Burner and Boiler Maintenance
Maintenance of oil and gas burners and boilers; adjusted settings to reduce energy use and emissions.
Heating Project and Design Office
Technical studies, calculations and sizing for heating, ventilation, air conditioning and renewable energy projects; from villas to large residential or commercial complexes.
Solar Systems
Installation and maintenance of photovoltaic, thermal and hybrid solar panels for electricity and hot-water production.
Heat Pumps
Installation and maintenance of air-to-air, air-to-water and water-to-water heat pumps for heating and cooling.
Control Systems
Control systems that optimise heating operation; sensors and controls adapt to demand and help reduce energy costs.
Heating Renovation and Refurbishment
Renovation and refurbishment of heating systems and boiler rooms; solutions aligned with technical, economic and regulatory requirements.
Tank Inspection
Legally required inspection of heating-oil tanks, carried out with suitable equipment and certified personnel.
Boiler Room Monitoring
Management and monitoring of heating installations for precise oversight and efficient fault response.
Trust & reputation

ranQ Trust Score of Stucker SA: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Stucker SA scores 45.4 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.16.924%
  • 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.79.710%
  • 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.88.08%
Stucker SA 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%
Stucker SA 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%
Stucker SA scores 34.3 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 35.34.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Stucker SA reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 2.9 out of 5 stars from 22 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
2.9
of 5

Aggregated from 22 reviews across all connected sources

Sources
GGoogle2.922
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Place du Marché 19-21
1227 Carouge Ge
Opening hours
Mon
07:30 - 17:30
Tue
07:30 - 17:30
Wed
07:30 - 17:30
Thu
07:30 - 17:30
Fri
07:30 - 17:30
Sat
09:00 - 17:00
Sun
07:30 - 17:00

At a glance

Legal form
Corporation
UID
CHE-107.754.997
Founded
1929 · 97 years
Last commercial register change
August 3, 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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