Chimney Repair and Rebuilding in Erie, PA
A chimney sits higher and more exposed than any other masonry on the house, and in Erie it stands out in the worst of the lake-effect weather. It fails from the top down. Water gets in at a cracked crown or lifted flashing, then works down through the brick above the roofline, washing out joints and spalling faces along the way. We repair and rebuild chimneys across Erie, and most of the time the fix is at the top.
The Crown and the Cap
The crown is the sloped slab across the top of the chimney that throws rain and snowmelt clear of the brick. A cracked crown lets water run down inside the stack. We pour a new crown with an overhang and a slope so it drains away from the masonry. The cap sits over the flue opening and keeps rain, animals, and debris out of the flue. A cracked crown and a missing cap are the two most common ways a chimney starts taking on water.
Flashing at the Roofline
Flashing is the metal that seals the joint where the chimney passes through the roof. When it lifts, corrodes, or was never sealed right, water runs down the brick and into the roof deck around the chimney. We reflash that joint and point the brick behind it so the seal holds. A leak blamed on the chimney is often the flashing letting go.
Spalling Brick Above the Roofline
The courses above the roof get the worst of the freeze-thaw, because they are wet on all four sides and dry slowly. Snow packs against them and melts in place, so they stay wet longer than anything lower on the house. Once water is getting in from a bad crown, those bricks spall and the joints wash out fast. We replace the spalled brick and repoint the exposed stack. Where the damage runs through the top courses, that section comes down and gets rebuilt.
Rebuild Above the Roofline, Keep the Stack Below
The stack inside the house and below the roofline is sheltered, and it is usually still sound long after the top has failed. So the common repair is a rebuild from the roofline up, not a chimney torn out to the basement. We show you where the good brick starts and rebuild from there in matched brick and mortar.
Firebox and Hearth
Inside, the masonry firebox and hearth take heat and the odd bit of moisture. Firebrick joints open up, and a firebox face can spall or crack. We repoint the firebox in the right refractory-grade mortar and rebuild a failed face. The masonry is what we do; a flue liner or a sweep is a separate trade, and we will say so if that is what the chimney needs.
What It Costs
A chimney repair covering the crown, cap, flashing, and some repointing runs about $500 to $2,500. A rebuild above the roofline runs about $2,000 to $6,000, depending on height and how many courses come down. Access drives a lot of it, since a tall stack needs staging before a single brick is touched. Every chimney gets a free look and a written estimate.
Seeing stains near the chimney or crumbling brick up top? (814) 555-0163 gets you a free estimate. If the joints on the rest of the house are open too, we can repoint while the staging is up.
How do I know if my chimney needs rebuilding or just repair?
It depends on how far down the damage runs. Chimneys fail from the top, so often only the courses above the roofline are bad and the stack below is sound. We check where the good brick starts. If the crown, cap, and top few courses are the problem, that is a repair. If the whole exposed stack is spalled and leaning, it comes down to the roofline and gets rebuilt.
What is a chimney crown, and why does it matter?
The crown is the sloped concrete or mortar cap across the top of the chimney, around the flue. It sheds rain and snowmelt away from the brick below. When it cracks, water runs straight down inside the chimney and into the top courses, and everything downstream gets wet. A sound, sloped crown is the first defense the chimney has.
Can a leaking chimney cause damage inside the house?
Yes. Water entering at a cracked crown or failed flashing travels down through the masonry and shows up as stains on the ceiling or wall around the chimney, and as a musty smell. The leak is at the top; the damage shows up lower. Fixing the crown, cap, and flashing stops it at the source.
Do you repair the firebox and hearth too?
We handle the masonry firebox and hearth, repointing firebrick joints and rebuilding a spalled or cracked firebox. The masonry is our work. We do not sweep flues or line them; that is a chimney sweep's job, and we will tell you when that is what you need instead.