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The choice for the future ($$$)
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Awning
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French Casement with Cremone Bolt

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Professional Services
Who we are Stores Contact us Careers
CA - FR
Wood Windows Hybrid Windows Double Hybrid Windows

Find the right type of windows for you in 4 easy steps.

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Series 1 The right choice ($)
Series 2 The best choice ($$)
Series 3 The choice for the future ($$$)
Discover the benefits of PVC Compare PVC series

Find the right type of windows for you in 4 easy steps.

Fenetre Header Juniper 0061
Series - SlimLine38 ($$)
Series - MasterLine8 ($$)
Series - MasterLine10 ($$$)
Discover the benefits of aluminium Compare aluminium series

Find the right type of windows for you in 4 easy steps.

Fenetre Header Juniper 0061
Discover the benefits of PVC Compare PVC series

Find the right type of windows for you in 4 easy steps.

Fenetre Header Juniper 0061
Discover the benefits of PVC Compare PVC series

Find the right type of windows for you in 4 easy steps.

Fenetre Header Juniper 0061
Discover the benefits of PVC Compare PVC series

Find the right type of windows for you in 4 easy steps.

Fenetre Header Juniper 0061
Casement
Fixed
Awning
Hung
Architectural
Sliding
Bow and Bay
Tilt-and-Turn
French Casement with Cremone Bolt

Find the right type of windows for you in 4 easy steps.

Fenetre Header Juniper 0061
Folding Doors Garage doors
Porte Header Novatech Pure2
Steel Door
Aluminum doors
Wood doors
Porte Header Novatech Pure2
PVC
Hybrid
Aluminium
Wood
Compare patio doors
Porte Header Novatech Pure2
Hybrid
Aluminium
Porte Header Novatech Pure2
Porte Header Novatech Pure2
Porte Header Novatech Pure2
Residential & Commercial Multi-Residential See all
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Window Wall Unitized
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Series - SlimWall35
Series - ConceptWall50
Series - ConceptWall60
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Recommended by Protégez-vous

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It is an honor for the entire Isothermic team to once again be recommended by Protégez-vous, in recognition of the superior quality of our products and customer service.

A true seal of approval, Protégez-vous is a symbol of quality and trust. We are proud to meet—and uphold—these high standards of excellence.

Why choose Isothermic? 

  • A CAA Québec–recommended company
  • Our SAV+ customer service program
  • Custom-made, ENERGY STAR® certified products
  • A nationwide certified installation program compliant with CSA A440.4-19 standards
  • Use of premium-quality, AAMA-certified PVC
  • Products tested for the rigors of our climate
  • One of the strongest warranties in the industry

Need advice?

We have several locations across Quebec and would be happy to hear about your project. Free consultations are available in-store or virtually, depending on your preference. We look forward to working with you!