Animal screens block the entry point entirely, so raccoons, squirrels, and birds never make it into the flue in the first place. Once Premier Chimney LLC installs animal screens on your chimney, the nesting, debris buildup, and blocked flue problems stop happening. That means no emergency cleanouts, no fire hazards from animal debris, and no structural damage caused by wildlife working its way deeper into the system. The fix is in place before the problem starts.