home window repair

one small square of an older window needs a replacement. does anyone have a recommendation?  it's not a stain glass or anything fancy..hoping for a quick, easy & reasonable fix. thanks!

Easy DIY. Measure square and go to hardware store like Bunchers in Millburn for replacement. While there pick up glazing putty and points. Watch youtube video on replacement and you are all set. Replacement should take 30 minutes tops depending if some scarping is needed.

Frank at Orange Valley Glass (973) 414-9100 in West Orange glass fixed a double hung vinyl window for me last week.  

Orange Valley has old wavy glass. Frank helped us replace old glass.