Honest chimney repair for Richmond Estates homeowners

Repointing to a uniform depth

Repointing is not a smear of fresh mortar over old joints. BIA maintenance guidance describes it as removing damaged or deteriorated mortar to a uniform depth and placing new mortar in the joint, packed in thin layers and tooled to match the original profile.

Depth is the step that gets skipped. The old mortar is cut back until sound mortar is reached, the brick edges are protected from chipping and thin slivers left on the brick are removed so the new mortar can bond. BIA warns that power tools can damage the surrounding brick and that repointing should be done only by qualified, experienced craftspeople.

A thin skim over soft mortar has little sound material to bond to. The estimate describes how the old mortar comes out and to what depth, which makes it easy to compare with a quote that just says repoint.

Rust on a steel lintel or support angle

Some chimneys and fireplaces rely on steel to carry masonry. Over a fireplace opening, the Florida Building Code has the masonry supported by a noncombustible lintel with bearing at each end, and brickwork elsewhere can sit on steel shelf angles.

Rust on steel that carries brick is more than a stain. BIA maintenance guidance lists accumulated rust on lintels or shelf angles among the conditions it treats as structural, the kind that warrant a professional engineer's investigation.

Light surface rust and accumulated rust are not the same finding, and the difference is checked up close. At your Richmond Estates home, a lintel with heavy rust is written on the estimate as a structural item with an engineer's evaluation recommended, not as a paint job.

• Rust building up in layers on the exposed steel
• Cracked mortar joints just above the steel
• Brick over the opening that has dropped out of line

Cracked clay tile flue liners

Clay tile is the traditional masonry flue liner, set in stacked sections that run up inside the chimney from the smoke chamber's top to a point above the chimney walls. The Florida Building Code has the lining carried up close to vertical and supported on all sides. A cracked tile breaks what should be one continuous passage for smoke.

Brick Industry Association guidance calls for checking liners before they go in for cracks that could let smoke and flue gas leak. Once a liner is in service, a crack can do exactly that. Smoke and heat can then reach the masonry around the flue, which the liner is there to protect.

Whatever caused the crack, one cracked section high in the flue and a run of broken tiles call for different fixes. Our chimney flue repair service decides between replacing sections and relining the whole flue, and the fireplace stays unused until that repair is done. The decision is written down with the reason behind it.

Changing the appliance means checking the flue

A flue is sized and lined for what it vents. Under the Florida Building Code, a chimney flue may not be smaller in area than the connector from the appliance, and a flue that served an open fireplace is not automatically right for a stove or an insert.

Swapping appliances is where mismatches start. Because the code ties the lining to the terms of the appliance listing and the maker's instructions, the new appliance's own manual carries part of the answer, and the chimney has to satisfy both the manual and the code.

If you can, bring the new appliance's model and manual into the conversation before it is bought. Our crew in Richmond Estates compares its flue requirements with the chimney you have, and the estimate spells out whether the existing lining can stay, needs repair or has to be replaced to suit it.