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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsDürntenStucki Spengler, Sanitär, Solar
Stucki Spengler, Sanitär, Solar Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Stucki Spengler I Sanitär I Solar is the planning, installation and maintenance of sanitary and heating systems, including renewable energies such as solar systems, heat pumps and wood heating systems. In addition, the company also offers services in the fields of bathroom architecture, interior architecture and building technology.

AI-generated
Offering

Products & services

Industry:Solar & Photovoltaics
✓ Offered7
Plumbing
Sanitary installations for new builds and conversions, building services systems, professional installations and equipment to improve living comfort and quality of life.
Solar
Thermal solar systems and photovoltaic systems, including advice on collectors, storage solutions and the use, storage or feed-in of electricity.
Sheet metal work
Gutters, dormers and solutions for roofs and façades made of copper, stainless steel, titanium zinc or powder-coated aluminium; also renovation of existing building components.
Bathroom renovation
Conversion of bathrooms and separate WCs, replacement of fixtures, walk-in level showers, shower WCs, as well as planning with Innoplus and realistic visualisations.
Service & maintenance
Emergency, fault, maintenance and upkeep work, rapid fault rectification, filter service and boiler service; service appointments also possible on weekends.
Heat pump technology
Advice on heat-pump boilers for domestic hot water and heating using ambient heat from air, ground or groundwater.
Heating with renewable energies
Advice on wood pellet heating systems, wood chip and firewood heating systems, and on the various types of wood heating.
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3.6/5

Stucki Spengler, Sanitär, Solar

Trust & reputation

ranQ Trust Score of Stucki Spengler, Sanitär, Solar: 3.6 out of 5.0

Trust Score3.6/ 5.0

Solid

x

Data basis 96% · As of October 2026

Stucki Spengler, Sanitär, Solar scores 44.3 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.54.224%
  • 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.27.910%
  • 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.35.08%
Stucki Spengler, Sanitär, Solar scores 71.2 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.83.012%
  • 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%
Stucki Spengler, Sanitär, Solar scores 83.3 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).83.322%
Stucki Spengler, Sanitär, Solar scores 10.3 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 35.10.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Stucki Spengler, Sanitär, Solar reaches a ranQ Trust Score of 3.6 out of 5.0 — rated «Solid». The rating draws, among other things, on 3.0 out of 5 stars from 2 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
3
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle32
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Bubikonerstrasse 41
8635 Dürnten
Opening hours
Mon
07:00 - 17:30
Tue
07:00 - 17:30
Wed
07:00 - 17:30
Thu
07:00 - 17:30
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-116.392.924
Founded
2017 · 9 years
Last commercial register change
March 27, 2017
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.67.06%
  • 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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