A chase cover is a part of a prefabricated metal fireplace system that covers the top of the chimney chase. Imagine an upside down cookie sheet with a hole in the middle. This protects your chase construction from water intrusion. Many times chase covers are installed in such a way that allows water to pool, eventually causing the cover to rust through. It also happens just being near the coast in salty air. We can replace these parts and install them properly to allow the water to run off, and alleviate some that possibility for rust damage.