The liner is the inner wall of the flue. Chimney liner repair in Spring Valley deals with cracked clay tile, open joints and liners that no longer suit the appliance they serve.
Heat stress, moisture and age. Clay tiles crack and the mortar between them washes out.
Using the fireplace or appliance anyway. Gaps in the liner let heat and gases reach the house.
An inspection of the flue. A Level 1 inspection is $69.
The liner carries smoke and combustion gases out of the house. It keeps their heat away from the framing around the chimney, and it protects the brick from the acids in flue gas. It also sets the size of the flue, which controls how well the fireplace or appliance drafts.
A liner with cracks or open joints does none of those jobs properly. Heat and gases escape into the masonry, and carbon monoxide can find its way indoors.
The choice depends on the liner type and what the flue serves.
Open joints between sound tiles are refilled with a refractory material applied down the flue.
A coating system restores the inside surface of a clay liner with minor cracks.
A stainless liner sized to the appliance is installed inside the old flue.
A cracked top tile is replaced with the crown. See chimney crown repair.
Most masonry chimneys in this area have clay tile liners, stacked in sections with a mortar joint between each. Stainless steel liners are used to reline damaged flues and to vent furnaces, boilers and stoves. Cast-in-place liners form a new cement flue inside the old one and can add strength to a weak chimney.
A flue has to match what it vents. When an old furnace or boiler is replaced with a more efficient one, the exhaust is cooler. In a flue that is now too large, that exhaust condenses on the walls. The acidic moisture eats mortar joints and tile from the inside, and it often shows up as a leak. That is one of the causes covered under chimney leak repair.
A liner cannot fix failed brickwork around it. Damaged joints and brick are handled under chimney masonry repair, and a stack that is no longer sound under chimney rebuild. Water reaching the flue from the roofline is covered under chimney flashing repair.
Minor cracks and open joints can often be repaired in place. Broken or missing tiles usually mean relining the flue.
A camera is run through the flue to view each tile and joint. This is part of a Level 2 inspection.
Yes. Gas exhaust carries a lot of water vapor and is corrosive to masonry, so the flue needs a correctly sized liner.