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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryCrafts & TradesHeating installerBaselSchmassmann AG
Schmassmann AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Schmassmann AG is a plumbing and sanitary installation company that plans, installs, renovates and refurbishes sanitary systems, and provides servicing and repairs. It also maintains and repairs heating systems and installs solar and rainwater-harvesting systems.

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Service area

Offering

Products & services

Industry:Heating installerPlumber
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Schmassmann AG

Photovoltaics
✓ Offered4
Sanitary installations
Advice, planning and installation of sanitary installations; new builds and conversions, renovations, refurbishments, service work, repairs for water damage, boiler descaling, construction of water piping and extraction in bathrooms.
Rainwater harvesting
Rainwater utilisation systems to reduce drinking water consumption; used for toilet flushing, washing laundry, cleaning and garden irrigation.
Solar installations
Solar installations for domestic hot water and space heating; advice, combination with heating systems and combi storage tanks, use of solar energy for showers, baths and heating.
Heating systems
Maintenance of heating systems as well as service and repair of heating systems; offered in connection with sanitary installations, solar installations and rainwater harvesting.
Trust & reputation

ranQ Trust Score of Schmassmann AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of November 2026

Schmassmann AG scores 55.6 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.42.524%
  • 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.61.010%
  • 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.88.08%
Schmassmann 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%
Schmassmann AG scores 86.7 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).86.722%
Schmassmann AG scores 2.0 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 35.2.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Schmassmann AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 3.4 out of 5 stars from 10 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
3.4
of 5

Aggregated from 10 reviews across all connected sources

Sources
GGoogle3.410
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Gartenstrasse 59
4052 Basel
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, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-110.036.253
Founded
2003 · 23 years
Last commercial register change
February 21, 2011
Employees
11 to 20

Active in 1 of 26 cantons

  • BSBasel-City
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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