Clay flue tile repair for homes in South Miami Heights

A crack in the wall between adjacent flues

When a chimney holds more than one flue, the code expects masonry between them, with an exception where the flues serve a single appliance. A crack or open joint in the wall between two flues can let gases from one pass into the other.

We identify each flue and what it serves before judging a defect between them. The estimate says which flue is being repaired and whether the adjacent flue shows related damage. If the dividing masonry needs work, that is described as its own item. Dividing masonry is often hidden, so we say how much of it we could see.

Lines to expect in a flue repair estimate

A useful flue repair estimate breaks the job into its parts. That makes it possible to compare proposals and to see what the price covers. Look for these lines in any estimate you receive for a damaged clay lining.

If a line is missing, ask about it. Our estimates list each of these where they apply, and state the price of each before you approve anything.

• Cleaning and removal of glazed deposits
• Removal of loose tile or mortar ridges
• The repair method and product named
• Curing guidance and a final visual check

The top tile and its projection above the crown

Technical guidance on residential chimneys has the flue tile stand a short way above the top of the chimney. That keeps water on the crown from running straight into the flue. A top tile cut flush or broken off low loses that protection.

When we assess the top of the flue, we look at how the tile meets the crown. If the top tile needs replacing, the new one is set to stand clear of the crown as the guidance describes. The crown itself, if damaged, is a separate item.

Many small defects along one flue

A flue with many minor defects, spread along its length, is a different case from one with a single serious crack. Local replacement cannot reach them all, and each patch adds another joint to watch.

This is where a listed resurfacing system can be the practical choice, if the flue meets its conditions. We explain whether it does. If the defects are too many or too severe for resurfacing, the estimate describes relining and explains the reasoning. A count of the defects we saw goes into the findings, section by section.