Construction Adexy runs two Isothermic doors and windows showrooms as an authorized dealer — the high-performance brand engineered for the Quebec climate, recommended by Protégez-vous and CAA Québec.
Casement, awning, sliding, single-hung, bay, architectural — Isothermic offers every opening type in PVC and hybrid.
Reliable and proven, with 40 years of continuous improvement. Recommended by Protégez-vous.
44 mm triple glazing, up to 48 × 96 in. without reinforcement. 54% above ENERGY STAR.
Dual Passive House certified, 103% above ENERGY STAR. LEED and BREEAM Outstanding compatible.
Our La Prairie showroom, right in the heart of town.
All our Isothermic products are covered by a complete warranty on labour and materials. Full details are in our official document.
Download the warranty (PDF, in French)Isothermic is a Quebec manufacturer known for high energy-performance products, available in three series, from reliable ENERGY STAR models up to Passive House certification. As an authorized dealer, Construction Adexy advises you and installs the product that fits your home and your budget.
Yes. Construction Adexy handles both the sale and the full installation: measuring, removing the old units, fitting, sealing and finishing. You deal with one team from start to finish.
Absolutely. We have two Isothermic showrooms on the South Shore, one in La Prairie and one in Mont-Saint-Hilaire. You can book a visit online to see and handle the products in person.
A PVC window is affordable and performs well. The hybrid version adds an aluminum exterior cladding: more durable, more weather-resistant, and a more architectural finish with a wide range of colours.
Window replacement, patio door, entry door — describe your project and we will call you back within 48 hours with an honest estimate.
