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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryCrafts & TradesAir conditioningRiazMMT SA, Sanitaire, Chauffage, Ventilation
MMT SA, Sanitaire, Chauffage, Ventilation Logo
Verified· 3 sourcesTrust Score
Summary

About the company

MMT SA, Sanitaire, Chauffage, Ventilation provides plumbing, heating and ventilation services. It designs and installs systems for new-build and renovation projects, and also handles repairs and call-outs.

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Service area

Offering

Products & services

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4.1/5

MMT SA, Sanitaire, Chauffage, Ventilation

Air conditioning
Heating installer
Plumber
✓ Offered5
Sanitary installations
Sanitary installations for new-build projects and renovations in apartment buildings, villas, commercial premises and public buildings, with complete installation of the pipe networks and built-in services.
Heating installations
Heating installations for new builds and renovations, with implementation of complete systems adapted to homes, shops and other buildings.
Ventilation installations
Ventilation installations for new-build projects and renovations, integrated into residential and professional premises to ensure comfort and technical performance of the buildings.
Breakdown service 7 days/7
Breakdown service available 7 days/7 to put sanitary, heating and ventilation installations back into working order.
Design and installation of CVS systems
Design and installation of sanitary, heating and ventilation solutions, with studies, costing and execution for residential, commercial and industrial projects.
Trust & reputation

ranQ Trust Score of MMT SA, Sanitaire, Chauffage, Ventilation: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 96% · As of November 2026

MMT SA, Sanitaire, Chauffage, Ventilation scores 71.1 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.69.424%
  • 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.55.910%
  • 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.95.08%
MMT SA, Sanitaire, Chauffage, Ventilation scores 80.4 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.79.212%
  • 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%
MMT SA, Sanitaire, Chauffage, Ventilation 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%
MMT SA, Sanitaire, Chauffage, Ventilation 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

MMT SA, Sanitaire, Chauffage, Ventilation reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.5 out of 5 stars from 8 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
4.5
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle4.58
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Route de Corbières 1
1632 Riaz
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-496.458.589
Founded
2018 · 8 years
Last commercial register change
July 10, 2025
Employees
11 to 20

Active in 2 of 26 cantons

  • FRFribourg
  • VDVaud
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.100.06%
  • 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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