Welcome to the website SE TCH Savoie of Harnois network

Processes Harnois, creators of sustainable constructions

About Us

SE TCH SAVOIE of Harnois group, LEADER for 30 years in attic layout, particularly the framework modifications of American farmhouses, carrying out basements, porches, custom home extension and roofs elevation in the departments of Ain, Isere, Rhone, Savoie, Haute-Savoie and the Gex.

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Our servicess

  • Attic layout.
  • Frames modification.
  • Cellars construction.
  • Verandas construction.
  • Custom extensions for your home.
  • Roofs elevation.

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Our expertise

Our Achievements

Attics layout, Roofs elevation
Wine cellar, Expansion, Veranda

See our achievements