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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsBulleMüller Concept SA
Müller Concept SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Müller Concept SA is an engineering firm specializing in heating, ventilation and sanitary building services (CVS), building physics and CECB energy assessments. The company provides technical studies and project design, supports projects through feasibility, design, tender and execution phases, and delivers Minergie and CECB certification, subsidy application support and energy renovation advice.

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Products & services

Industry:Specialized Construction Installations
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Müller Concept SA

✓ Offered
8
CVS Engineering
Technical studies and custom designs in heating, ventilation and plumbing for new buildings and renovations; support, project follow-up and implementation in compliance with standards.
Building Physics
Analysis of buildings’ thermal and energy performance; optimization of insulation and thermal comfort for new-build or renovation projects.
CECB Energy Expertise
Energy assessments and diagnostics according to the CECB standard; advice to improve energy performance and reduce energy consumption.
Energy Permitting Submission
Preparation of technical documents for energy compliance of projects; support with administrative procedures related to the permitting process.
Minergie Certification
Studies and building certification according to Minergie standards; advice and support to achieve Minergie or Minergie-P.
Subsidy Applications
Compilation of files to obtain cantonal or federal subsidies related to energy efficiency; follow-up of administrative procedures.
Energy Renovation
Analysis of needs and proposal of solutions to optimize the energy efficiency of existing buildings and to target renovations.
Technical Advice and Support
Technical support for clients, architects and contractors; assistance in choosing suitable technical solutions and materials.
Trust & reputation

ranQ Trust Score of Müller Concept SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Müller Concept SA 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%
Müller Concept SA 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%
Müller Concept SA scores 83.3 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).83.322%
Müller Concept SA scores 51.4 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 35.51.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Müller Concept SA 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

Rue du Vieux-Pont 23
1630 Bulle

At a glance

Legal form
Corporation
UID
CHE-155.663.788
Founded
2021 · 5 years
Last commercial register change
July 8, 2026
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

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