Top course repair
Spalled bricks and worn joints near the top are repaired along with the crown before the crown goes on.
Masonry Repair
Chimney Crown Repair Abington, PA
Cracked chimney crowns in Abington can usually be sealed if caught early, or replaced if the concrete is crumbling, so rain stops soaking into the brick from above. One call to (267) 715-3132 reaches a nearby chimney crown pro.
A chimney crown covers the top of the brick and slopes away from the flue so water runs off instead of soaking in. Because it faces every storm, freeze and heat wave head on, the crown is usually the first part of the chimney to fail. Once it cracks, water runs straight into the brick and mortar below, and every freeze widens the crack.
People often confuse the crown with the cap, but they are different parts. The crown is the masonry slab, while the cap is the metal cover with a mesh screen that sits over the flue opening. A new cap will not stop water from soaking in through a cracked crown.
Many crowns crack early because of how they were built. Builders and roofers often form the crown from mortar mix spread thin and flush with the brick, with no overhang and no gap around the flue tile. Mortar is not meant for that job, and a flue tile that heats and expands will crack a crown that is cast tight against it.
Chimney Crown Repair is often paired with chimney cap installation and chimney leak repair, depending on the cause.
Need chimney crown repair in Abington? Call (267) 715-3132 to reach a nearby chimney sweep.
Call nowThe process
How chimney crown repair works
Here is how a chimney technician typically handles a crown repair.
Check the top
The crown is tapped and checked to see whether it is solid with surface cracks or breaking up. The flue tile, cap and upper brick are checked at the same time, since crown damage often spreads to them.
Prep the crown
Any crumbling material is chipped away and the surface is prepared. Repairs only hold on a clean, sound, dry surface.
Seal minor cracks
Hairline cracks in an otherwise sound crown are filled and the whole crown is coated with a flexible, elastomeric crown sealer. It works well on a structurally sound crown with surface cracks.
Recast the top
If the crown is crumbling, thin or cracked through, it is removed and a new one is formed and cast. A proper replacement slopes away from the flue and extends past the brick with a drip edge underneath.
Expansion joint
A bond break is left between the crown and the flue tile so the tile can expand without cracking the crown. That one detail prevents the most common crown cracks.
Finish the top
A cap goes back on once the new crown is ready. It is a good moment to repoint the top courses if needed.
What is included
Crown work a chimney sweep handles
Bond breaks
The joint between the crown and flue tile is opened and sealed with flexible material so heat does not crack the crown.
Crack sealing
Small cracks in a sound crown are sealed that keeps water out and moves with the concrete.
Crown rebuilding
A failed crown is replaced with a properly built concrete crown that sheds water past the brick.
Drip edges
New crowns are built to overhang the brick with a groove underneath to protect the brick below.
Related service
Chimney Crown Replacement Abington, PA
When a crown has deep cracks, loose chunks or no overhang at all, replacing it is more reliable than sealing it. Replacement starts with removing the old crown and inspecting the masonry underneath. Some crowns are cast in place on the chimney, and others use a precast crown set on a bed of mortar, both with an overhang and a gap around the flue.
In Abington, the weather affects when a crown can be replaced. Concrete needs to cure without freezing, so most crown replacements are done from spring into fall. If a crown fails in winter, a temporary seal or tarp can limit water damage until it can be replaced. Ask the chimney sweep whether the new crown will have an overhang, a drip edge and an expansion joint at the flue, since those three details decide how long it lasts.
Local help
Chimney Crown Repair Near Me
In Abington, a crown that looked fine in the fall can be cracked by spring. Across Abington and nearby places including Roslyn, Willow Grove, Jenkintown and Glenside, the crowns that crack first are the ones with no overhang and no room for the flue tile to move, and a properly built crown is one of the best investments in a chimney.
Need chimney crown repair around Abington? Call (267) 715-3132 for an Abington chimney sweep who serves the towns around it too.
What the local climate does to a chimney
Winters here are long and cold, and the heating season usually runs from October well into April. The hardest thing on brick here is not the cold itself but the constant swing above and below freezing: rain and melting snow soak into the crown and joints, then freeze and push them apart, which is how cracks, loose bricks and leaks start. Wind driven rain from coastal storms finds any gap in flashing, too. That is why chimney cleaning in Abington is usually booked in the fall, before the first cold night.
Why call
Why not wait
Smaller repairs
Small chimney problems caught early usually stay small repairs.
Local knowledge
Chimney sweeps in Abington know the chimneys and fireplaces common in local homes.
Know what happens next
Ask your questions before you agree to anything.
Chimney Crown Repair questions
Can a cracked chimney crown be repaired?
The answer turns on how badly the crown is damaged. Minor surface cracks are usually sealed with an elastomeric crown sealer. A crown that is breaking apart or was built too thin usually needs to be replaced.
How long does a chimney crown last?
How long a crown lasts depends mostly on how it was built. The weak ones are thin, flush with the brick and cast tight to the flue. Having the crown checked each year lets you seal cracks before replacement is needed.
Is a cracked chimney crown a big deal?
A cracked crown is worth fixing quickly, even if the crack looks small. Once water reaches the masonry, it leads to spalled brick, failing mortar, rusted dampers and damaged flue tiles. Fixing it now is far easier than repairing the masonry damage later.
What causes chimney crowns to crack?
Crowns crack from water freezing in small cracks, from being built thin out of mortar, and from the flue tile expanding against them. A crown cast tight against the flue tile will crack when the tile heats and expands. Once a crack forms, water gets in, freezes and widens it every winter.
What is the difference between a chimney crown and a chimney cap?
Think of the crown as the roof of the chimney and the cap as the lid on the flue. They protect different parts of the chimney. Adding a cap will not fix crown damage.
More questions? Call (267) 715-3132
Often needed together
Chimney Cap Installation
Putting a sturdy cap on top of the chimney sized to the flue tile or the whole crown.
Learn moreChimney Leak Repair
Tracing chimney leaks to the real entry point and sealing it, instead of patching the stain on the ceiling.
Learn moreChimney Masonry Repair
Brick and mortar repair for weathered or damaged chimneys, with materials matched to the original masonry.
Learn moreChimney Waterproofing
Protecting chimney masonry from rain with a penetrating repellent, as the last step in keeping a chimney dry.
Learn more
Looking for something else?
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