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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesKoblenzTom Schwarz
Tom Schwarz Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Tom Schwarz company encompasses the planning, installation, and maintenance of solar systems, modern heating systems, and bathroom renovations. Specifically, the company offers solutions for: Solar energy (photovoltaics and solar thermal systems), Heating systems (heating system modernization, heat pumps, heating walls, and designer radiators), Bathroom renovation (bathroom planning and design, sanitary and heating installations). The company provides a comprehensive range of services to support customers in implementing energy-efficient and environmentally friendly solutions.

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Offering

Products & services

Industry:Plumbing & Building ServicesSolar & Photovoltaics
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4.1/5

Tom Schwarz

✓ Offered4
Photovoltaics & Solar thermal
Analysis and advice, heating system modernisation, energy-efficient refurbishment, solar heat and solar power, maintenance and service.
Heating & heat pumps
Modernisation of heating systems, heat walls and designer radiators, wall, floor, ceiling and radiator heating, controlled room ventilation, heat pumps.
Bathroom renovation
Advice, bathroom planning and design, sanitary and heating installations, bathroom and living space renovations, complete bathrooms, dust-free work with Dustbox.
Renovations from one source
Renovation of older buildings, attic conversion, comprehensive renovations of a house or apartment.
Trust & reputation

ranQ Trust Score of Tom Schwarz: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Tom Schwarz has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Tom Schwarz scores 78.5 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%
Tom Schwarz 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%
Tom Schwarz scores 0.9 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 35.0.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Tom Schwarz reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Bahnhofstrasse 7
5322 Koblenz
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 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-114.057.219
Founded
2008 · 18 years
Last commercial register change
April 25, 2023
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.
67.0
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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