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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesCarouge GeMulti & Therme SA
Multi & Therme SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Multi+Therme S.A. consists in the conception, development, installation, maintenance and optimization of solutions for the production and distribution of thermal energy, particularly in the field of heating. The company offers services such as planning and installation of heating systems, maintenance and repair of existing facilities, as well as optimization of energy efficiency. It also provides a 24/7 emergency service for heating failures.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered5
New Installation
Heating installation for single-family homes, small multi-family buildings and residential properties, with simple or multi-energy solutions, including study, sizing and a free quotation.
Renovation
Replacement of existing installations, change of fuels, refurbishment and modernization with radiators, towel warmers and underfloor heating, with project follow-up.
Maintenance
Maintenance and monitoring contracts for heating installations, with 24/24 standby and 365 days per year to ensure safety and optimal operation.
Heat Pump Module System
Replacement of fossil-energy heating with a subsidized heat pump, including handling of the administrative procedures for the grants.
Multi-Energy Technical Solutions
Advice on gas, heating oil, heat pump, solar and geothermal solutions, including study and selection of the appropriate solution for private individuals and professionals.
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4.1/5

Multi & Therme SA

Trust & reputation

ranQ Trust Score of Multi & Therme SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Multi & Therme SA scores 63.0 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.48.124%
  • 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.78.610%
  • 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%
Multi & Therme 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%
Multi & Therme 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%
Multi & Therme SA scores 7.1 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 35.7.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Multi & Therme SA reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 3.8 out of 5 stars from 21 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
3.8
of 5

Aggregated from 21 reviews across all connected sources

Sources
GGoogle3.821
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Rue Ancienne 84 A
1227 Carouge Ge
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-107.892.889
Founded
1971 · 55 years
Last commercial register change
February 20, 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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