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

About the company

The core activity of Römelin Heizsysteme AG is the planning, installation, commissioning and maintenance of heating systems, including radiators, stove heating systems and central heating systems, as well as the renovation and servicing of existing heating installations. The company also provides consulting services and general contractor services for heating projects.

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Products & services

Industry:Heating installer
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3.9/5

Römelin AG, Heizsysteme

✓ Offered5
Heating systems
Design and installation of complete heating systems, central heating, new installations and modernisations, district heating, heat pumps, solar heating systems, pellet and wood-chip heating systems as well as oil- and gas-fired heating.
Heating system renovation
Renovation of heating systems and heating plants of any size, including coordination of all ancillary work as a total contractor with a single point of contact.
Service and on-call duty
Service for heating systems of any size, quick help for heating faults, also in the evenings and at weekends, during the cold season with on-call duty.
Stove heating systems
Sales and service of SIBIR heating appliances, common oil stoves and fireplace, wood and gas stoves, including room heaters, stove fireplaces and accessories.
Advice, design, installation and commissioning
Advice, design, installation and commissioning of heating solutions, from room stoves to large central heating systems.
Trust & reputation

ranQ Trust Score of Römelin AG, Heizsysteme: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of November 2026

Römelin AG, Heizsysteme scores 54.5 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.63.124%
  • 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.49.510%
  • 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%
Römelin AG, Heizsysteme 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%
Römelin AG, Heizsysteme 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%
Römelin AG, Heizsysteme 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

Römelin AG, Heizsysteme reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.2 out of 5 stars from 6 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
4.2
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle4.26
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Türkheimerstrasse 16
4055 Basel
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.308.066
Founded
1992 · 34 years
Last commercial register change
December 24, 2021
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • BSBasel
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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