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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction managerLausanneCONSTECH SA
CONSTECH SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

CONSTECH SA manages energy-efficiency renovation projects for existing buildings, from assessment and planning through construction coordination and performance monitoring. Its work covers building systems and measures including heating, ventilation, plumbing, electrical installations, building envelopes and solar energy.

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Service area

Offering

Products & services

Industry:Construction manager
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CONSTECH SA

General contractor
Energy consulting
✓ Offered11
Turnkey energy renovations
Turnkey energy renovations from analysis and diagnosis through strategy and planning to site coordination, commissioning, and performance monitoring for existing buildings.
Building audit and energy diagnosis
Building audit, CECB and PEIK assessment, reports, and target definition to prepare renovation and efficiency measures.
Renovation strategy and project planning
Project studies, budget securing, permit dossier preparation, and structured decision-making and planning phases before renovation work starts.
Site coordination and commissioning
Overall site coordination, execution management, commissioning of installations, and user training for new systems.
Energy monitoring and performance tracking
Energy metering and monitoring, analysis of real performance, and simplified post-renovation billing support.
Heating system modernisation
Replacement of existing heat production with heat pumps, pellet boilers, or connection to district heating.
Ventilation and air-conditioning systems
Renovation and adaptation of ventilation and air-conditioning systems, taking regulations and building use into account.
Sanitary installations
Renovation of water networks and sanitary equipment for existing buildings and current requirements.
Electrical modernisation
Modernisation and compliance upgrades of existing electrical installations, including panels, load management, solar integration, and e-mobility.
Building envelope and insulation
Improvement of roofs, windows, façades, and components adjoining unheated spaces to reduce energy demand.
Solar installations
Integration of photovoltaic and thermal solar systems on existing buildings for self-consumption and on-site energy production.
Trust & reputation

ranQ Trust Score of CONSTECH SA: 3.5 out of 5.0

Trust Score3.5/ 5.0

Solid

x

Data basis 54% · As of November 2026

CONSTECH 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%
CONSTECH SA scores 42.7 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.0.012%
  • 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%
CONSTECH 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%
CONSTECH SA scores 0.3 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 35.0.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

CONSTECH SA reaches a ranQ Trust Score of 3.5 out of 5.0 — rated «Solid». 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 November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Hier entsteht die Karte
Chemin de Mornex 38
1003 Lausanne

At a glance

Legal form
Corporation
UID
CHE-375.066.786
Founded
2026 · 0 years
Last commercial register change
February 12, 2026
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • VDLausanne
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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