JWM Windows

Professional & Affordable Window Installation

image of a two story house with windows freshly done by JWM windows

About Us

Owned and operated by Justin Margas, JWM Windows is always the right choice for your new windows and doors. With over 10 years of experience we'll leave your home looking fabulous with attractive, warrantied, and energy efficient products.

We take pride in giving you quality craftsmanship for a fair price. We provide installation in all 4 seasons and offer free estimates while also being fully insured to work on your home.

Our services are available all throughout the capital district including Albany, Montgomery, Rensellear, Schenectady, Saratoga, Schoharie, and Fulton county.

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Window Replacement

  • Double Hung Windows
  • Slider Windows
  • Casement Windows
  • Picture Windows
  • Awning Windows
  • Basement Windows
  • Bay & Bow Windows
  • New Construction
  • Opening Changes

Door Replacement

  • Main Entry Doors
  • Sliding Glass Doors
  • Interior Doors
  • Vented Sidelite Doors

Custom Trimwork

  • Custom Aluminum Trim
  • Interior Moldings
  • Soffit & Fascias


Don't take our word for it, hear from some of our satisfied customers!

"Everything from double hung to bays and bows, we've got you covered." - Justin Margas, Owner