A chimney liner is a stainless steel (or clay) pipe inside the flue that gives exhaust a safe, correctly sized path out of the home. It protects the masonry from heat and moisture, improves draft, and keeps the venting system working safely for your appliance - which is why a worn or missing liner should be replaced.
Common signs include a cracked or deteriorating existing liner, white staining or moisture on the masonry, weak draft, or an inspection that shows an unlined or damaged flue. A camera inspection is the surest way to confirm the condition before any work.
Parging coats the rough, corbelled masonry of the smoke chamber with smooth refractory mortar. That improves draft, cuts down on buildup, and seals gaps - an important step when restoring a flue and installing a new liner.
The crown, cap, and flashing are the chimney's defense against water. Sealing them along with a new liner protects the whole system top to bottom, so you avoid coming back for water-damage repairs later.
It depends on the scope, but a combined liner, smoke chamber, crown, cap, and flashing project is typically completed within a few days. We provide a clear scope and timeline before the work begins.