What is Flashing Maintenance?

Definition

Periodic inspection and re-sealing of metal flashings at chimneys, walls, valleys, and penetrations to prevent the sealant failure that leads to leaks. Flashing sealant typically lasts 5-10 years. Professional maintenance includes checking for rust, separating counter flashing, pulled step flashing, and cracked pipe boot collars. Addressing minor flashing issues proactively typically costs $100-500 versus the $1,000-5,000+ cost of interior water damage repairs.