Sliding Doors and Windows Don’t Slide, They Roll.
Millions of homeowners struggle everyday to move the sliding door accessing their patio, deck or pool. Their sliding doors have not been easy to open or close for many years. And the recommendations from friends to coat the track with grease, silicone or WD-40 has provided only temporary relief.
https://www.slidingdoorrepair.com/our-services/door-sliders-dont-slide/
