What are some signs it’s time to replace your existing sliding patio door?

Your current door is hard to open—Roller damage, misalignment, and frame damage are all possibilities for why it has become hard to open your door.
Decreased energy efficiency—Consider upgrading to a more energy-efficient replacement sliding patio door if your existing one is the cause of energy leakage. As your patio door ages, the frame and/or sash may warp over time.
Glass Begins to Fog—When condensation begins to build between panes of glass, it’s an indicator that the seal on the insulating glass unit has been compromised. This will negatively impact the insulating properties of your sliding patio door.