Spalled brick replacement on chimneys in Coral Gate
Cracked bricks are checked for movement first, so a replacement does not hide a larger problem.
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Clues that point to spalled brick
- Brick fragments on the roof or ground
- Damage worst near the chimney top
- Spalled brick just above the roofline
- Crumbling brick near the ground
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Brick replacement decisions for homes in Coral Gate
Hard mortar and cracked brick faces
Mortar is meant to be the weaker partner in a masonry wall. Federal preservation guidance explains that mortar harder than the brick forces stresses into the units, which then crack and spall. Brick industry guidance warns of the same result from strong repointing mortar.
If your damaged bricks sit beside bright, dense joints from an earlier repair, that mortar may be part of the story. We point it out and explain whether those joints should be renewed with a softer mix when the bricks are replaced.
When to think about a water repellent again
Once damaged bricks are replaced and the water source is fixed, it is tempting to seal the chimney straight away. Brick industry guidance suggests waiting several months after repairs, because the repairs themselves often solve the water problem.
If water still gets in after that time, a repellent that lets the masonry breathe can be considered. We discuss it then as a separate item. Waiting also lets the new mortar cure fully before anything is applied over it. Any product chosen then should let the brick release water vapor.
Fresh joints that settle in color over time
New mortar around a replaced brick often looks brighter than the old joints at first. Federal preservation guidance explains that weathered mortar shows more of its sand, and fresh mortar has not weathered yet.
We match to sheltered, less weathered areas of the existing joints, because that is what the new joints will come to resemble. Staining new mortar to force a match is generally not recommended. In most cases, time closes the gap. Knowing that in advance means a slight contrast on the day of the work need not cause concern.
A mortar skim is not a new brick
A common shortcut is to smear mortar or patching compound over a lost brick face. From a distance it can look tidy. Up close, the skim has little to grip, cracks away and can hold water against the damaged brick behind it.
We do not patch lost faces in that way. A unit that has lost its face or cracked through is cut out and replaced. If earlier patches are on the chimney, we remove them and assess the brick beneath before proposing work.
What the free brick inspection covers
- Separate lines for crown or flashing work
- Protection for roof, windows and plantings
- Overnight cover for an open chimney top
- Debris removal and haul-away
Answers about chimney brick replacement
How do you match new brick to an older chimney?
We compare size, color, texture and the range of shades in the wall, and we can set out a sample to judge the match. Finding a close brick can take some searching. New brick may look fresher at first.
What should I tell you when I call about damaged brick?
Mention which side of the chimney shows damage, whether pieces have fallen and whether water shows inside. Tell us about past repairs, coatings, paint or sealers. That history helps explain why the brick failed.
Will you check the crown while replacing bricks near the top?
Yes. Bricks near the top often suffer because water comes from above. We check the crown, cap and flue seal, and if one of them is failing, we explain it and price it separately.
More Ways to Care for Your Fireplace
- Chimney Masonry RepairRepair affected chimney brickwork and joints with materials selected for the construction already in place.
- Chimney Leak RepairFind the chimney water entry point and plan a repair before restoring the damaged finish.
- Top-Sealing Damper InstallationFit a top-mounted damper only after checking the fireplace, product restrictions and control route.
- Hurricane and Storm Damage Chimney RepairAssess storm-related chimney concerns and distinguish temporary protection from permanent component repair.
- Chimney Liner Installation and ReliningPlan a compatible chimney liner installation with the existing passage, connections and maintenance access considered together.
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Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo