Valley Siding & Windows Ltd. 1360 Labrie Ottawa, Ontario K1B 3M1 613-234-4291
Valley's fancy show-case office is at 1348 Labrie (off Cyrville Rd), but a couple houses down, (same side of street) is where both the dumpster (for tossing) and the area for storing second hand windows (to sell) are kept. They bring in, sell and toss second hand windows regularly there so you'll never know from one day to the next just what you'll find. The area is closed off and locked after regular business hours Mon - Fri (6:00?) but not operational during weekends.