ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The leading AI company directory, built to boost AI visibility.

DEENFRIT
Product
  • Pricing
  • Directory
  • Industries
  • Trust Score
Company
  • About
  • Partner program
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsWil SgM&M Heizungssanierung AG
M&M Heizungssanierung AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of M&M Heizungssanierung AG is the planning, consulting, installation and maintenance of heating systems, including heat pump systems, wood heating systems and district heating, for private and commercial customers.

AI-generated
Offering

Products & services

Industry:Specialized Construction Installations
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
3.8/5

M&M Heizungssanierung AG

✓ Offered
5
Heating system renovations
Heating system renovations for oil, gas, wood and pellet boilers, as well as district heating and heat pumps; planning, consulting and implementation of heating systems.
Heat pump systems
Consulting on heat pump systems, including air heat pumps and ground-source heat pumps; reference installations and solutions for replacing existing heating systems.
Wood heating systems
Consulting on wood heating systems; reference installations for wood-fired heating and heating systems with high flow temperatures.
District heating
Consulting on district heating; reference installations and integration into renovations or new heating systems.
Commercial large-scale systems
Planning and implementation of commercial heating and hot water solutions; needs-based planning and cost certainty for business clients.
Trust & reputation

ranQ Trust Score of M&M Heizungssanierung AG: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

M&M Heizungssanierung AG scores 56.5 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.68.224%
  • 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.17.610%
  • 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.70.08%
M&M Heizungssanierung AG scores 70.4 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.64.612%
  • 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%
M&M Heizungssanierung AG 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%
M&M Heizungssanierung AG scores 3.7 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 35.3.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

M&M Heizungssanierung AG reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

No knowledge articles yet

Once M&M Heizungssanierung AG has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

M&M Heizungssanierung AG in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank M&M Heizungssanierung AG by reviews, experience and specialisations.

Is this your company?

Claim the company profile of M&M Heizungssanierung AG to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Gallusstrasse 20
9500 Wil Sg
Opening hours
Mon
08:00 - 12:00, 13:00 - 16:00
Tue
08:00 - 12:00, 13:00 - 16:00
Wed
08:00 - 12:00, 13:00 - 16:00
Thu
07:00 - 12:00, 13:00 - 16:00
Fri
08:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-229.736.979
Founded
2021 · 5 years
Last commercial register change
March 22, 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.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

    Similar companies

    KG
    Kältekreis GmbH
    Oberuzwil
    BH
    Buchegger Haustechnik GmbH
    Bazenheid
    KH
    Kessler Haustechnik GmbH
    Nesslau
    FK
    Fh Kältetechnik AG
    St. Gallen
    EA
    Engeo AG
    Arnegg
    SA
    SYMA-SYSTEM AG
    Kirchberg Sg
    KW
    Kühne Wärmetechnik GmbH
    Schänis
    MS
    M. Sturzenegger AG
    Staad Sg