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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsAyerMaison Durable SA
Maison Durable SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Maison Durable SA is the planning and execution of construction projects, particularly in the field of sustainable and energy-efficient building. This includes the development of new buildings, the renovation and optimization of existing buildings, as well as expertise in the field of energy-related renovation. The company also offers architectural and engineering services and supports customers in the planning and realization of their construction projects.

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Products & services

Industry:Architecture Firms
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4.1/5

Maison Durable SA

Architecture
Architecture for preliminary design, project, 3D modelling, building permit application, execution plans, tendering, site supervision and cost control.
Renovation/Energy Optimisation
Renovation and energy optimisation with a catalogue of renovation measures, permitting and subsidy documentation, tendering, execution plans, work supervision and cost control.
CECB® expertise
CECB expertise with a CECB report, site visit and building survey, overall energy balance, CECB+ report, measures to reduce energy consumption, and estimates of costs and subsidies.
Public inquiry dossier
Dossier for public inquiry including procurement of the official documents, technical report, energy statement, fire conformity document, building permit application and dossier follow-up.
Subsidies
Subsidies with study of subsidy options, preparation of the application file, submission to the relevant authorities, file follow-up and cost control.
Construction site supervision
Construction site supervision with tendering, detailed execution plans, construction schedule, supervision of the works from A to Z, cost control and commissioning.
Trust & reputation

ranQ Trust Score of Maison Durable SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Maison Durable 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%
Maison Durable SA 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%
Maison Durable 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%
Maison Durable SA scores 37.1 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 35.37.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Maison Durable 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

Route de Zinal 106
3961 Ayer
Opening hours
Mon
07:30 - 17:00
Tue
07:30 - 17:00
Wed
07:30 - 17:00
Thu
07:30 - 17:00
Fri
07:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-393.169.786
Founded
2011 · 15 years
Last commercial register change
November 9, 2018
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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