All Window Installers in Warren

We are Metro Detroit’s best kept secret in replacement windows. Don’t let our modest pricing fool you, our quality surpasses the competition. No flashy advertising campaigns, we invest in the quality of our product.

Now offering custom painted, maintenance free vinyl windows. Custom painted windows inside and out. Our new painting process is breaking ground in the Detroit area.

Competitive window prices, long term energy savings!
Replacing your windows and doors is a cost effective way to improve the value and appearance of your home while lowering your energy bills. We will match our competitors price on comparable window products. Our replacement windows and patio doors are covered by our Warranty.

Family Owned Business

Commercial Glazing Contractor
Small Service Accounts

Genex Window is a Michigan-based manufacturer and installer of custom-built vinyl replacement windows for residential homes. Unlike many window companies that resell mass-produced products, our windows are designed and built locally to fit each opening precisely—improving energy efficiency, durability, and long-term performance. We specialize in double-hung, casement, sliding, picture, bay and bow windows, as well as patio doors. Every unit is built to order using high-performance glass, reinforced vinyl frames, and premium hardware. Our team manages the entire process from in-home measurement through manufacturing and professional installation, ensuring tighter tolerances, cleaner installs, and consistent quality on every project.