Side flashing
Rusted or missing step flashing along the sides is replaced so water runs down the roof instead of under it.
Masonry Repair
Chimney Flashing Repair Morrisville, PA
Leaks at the roof line in Morrisville usually come from flashing that has pulled loose, rusted through or been patched with tar, before the leak rots the roof deck and framing. Dial (267) 697-3471 to talk with a local chimney sweep about the flashing.
Chimney flashing is the metal that seals the gap between the chimney and the roof, and when it fails, water runs straight into the attic. A chimney and a roof never move together perfectly, so the flashing is made of separate overlapping pieces rather than one solid seal. Years of sun, freezing and thawing loosen the counter flashing, rust thin metal and dry out every bead of caulk.
Good flashing is a system, not a single strip of metal. Step flashing interlocks with the shingles on each side, and counter flashing is tucked into a cut in the mortar and folded down over it. The low side gets an apron, and the high side gets a back pan or, on wider chimneys, a cricket that splits the water around the chimney.
When you call about a flashing leak in Morrisville, a few details help. Note whether the stain is on the uphill or downhill side of the chimney, whether it leaks in every rain or only in heavy storms, and when the roof was last replaced. If you can see black tar smeared around the chimney, say so, because that usually means earlier patches have already failed.
Depending on what the sweep finds, chimney flashing repair in Morrisville, PA can go hand in hand with chimney leak repair and chimney waterproofing.
Looking for Morrisville chimney flashing repair? Call (267) 697-3471 to reach a nearby chimney sweep.
Call nowThe process
How chimney flashing repair works
Here is how a chimney technician typically handles a flashing repair.
Check the flashing
The technician checks the apron, step flashing, counter flashing and back pan or cricket, plus the shingles around the chimney. The roof deck under the flashing is checked for soft spots.
Test for leaks
Flashing leaks can be confused with crown, cap or brick leaks, so other sources are ruled out. New flashing will not stop a leak that starts at the crown.
Strip failed material
Failed sealant and damaged flashing come off so the new work starts on a clean, sound surface. Soft or rotted sheathing under the old flashing is repaired first.
Side flashing
New step flashing is installed piece by piece along the sides, interwoven with each course of shingles. An apron goes across the front, and an underlayment membrane is often added around the base for extra protection.
Set counter flashing
The top layer is set into the masonry itself, overlapping the step flashing below. Surface-mounted flashing held on by caulk alone is avoided because it fails quickly.
Divert uphill water
Chimneys wider than about thirty inches usually call for a cricket on the high side under common building codes. It keeps debris and ice from building up behind the chimney.
What is included
Flashing work a chimney sweep handles
Tar patch removal
Failed tar patches are stripped and replaced with real flashing before new metal goes on.
Cap flashing
The top layer of flashing is renewed and properly let into the mortar joints instead of being held on with caulk.
Crickets
Missing or failed crickets are built or rebuilt and flashed so debris and ice stop collecting there.
Apron flashing
The apron across the downhill face is replaced or resealed to keep the front edge watertight.
Related service
Chimney Flashing Replacement Morrisville, PA
When flashing is rusted, bent or covered in years of patches, replacing it outright is usually smarter than another repair. It is a full redo of the joint, from the underlayment up to the counter flashing in the mortar. A common shortcut is to reuse the old flashing during a reroof, and that often leads to a leak within a few years.
In Morrisville, the easiest moment to replace chimney flashing is while the roof is already torn off. Coordinate the chimney sweep and the roofer so the step flashing goes in with the shingles and the counter flashing is set into the brick. While everything is exposed, a quick look at the crown, cap and upper mortar joints can save a second trip onto the roof.
Local help
Chimney Flashing Repair Near Me
In Morrisville, flashing tends to fail first on older roofs and on chimneys that sit below a long run of roof. Across Morrisville and nearby places including Yardley, Fairless Hills, Levittown and Woodbourne, the chimneys that leak most are the ones where water and snow collect on the uphill side, which is why a real flashing repair outlasts another round of tar.
Searching for chimney flashing repair near me from Morrisville or Yardley, Fairless Hills, Levittown and Woodbourne? Call (267) 697-3471 to talk to a chimney sweep who works in your part of town.
How the weather here affects chimneys around Morrisville
Cold winters keep fireplaces, wood stoves and oil burners working for half the year or more. The hardest thing on brick here is not the cold itself but the constant swing above and below freezing: water soaks into brick, mortar joints and the crown on a mild day, freezes overnight and expands, and each winter widens the cracks a little more. Nor'easters drive rain sideways into flashing and mortar that looked fine in summer. That is why chimney cleaning in Morrisville is usually booked in the fall, before the first cold night.
Why call
Why act early
Safer fires
A chimney problem fixed early rarely spreads to the masonry, the liner or the house.
Sweeps who know Morrisville
Local sweeps see the same chimney types and weather wear across Morrisville and nearby towns.
Clear next steps
Ask the sweep about the cause, the options and the estimate before work starts.
Common questions about chimney flashing repair
What is a chimney cricket?
A cricket, also called a saddle, is a small peaked structure built on the uphill side of a chimney to split water and snow around it. Without one, water, leaves and ice collect behind a wide chimney and work their way under the flashing. Common building codes call for a cricket on chimneys wider than about thirty inches, unless the chimney sits at the ridge.
Should chimney flashing be replaced with a new roof?
Replacing it during a reroof is strongly recommended. Proper step flashing goes in with the shingles, so it is easiest when they are being replaced. Reusing old flashing under new shingles is one of the most common causes of chimney leaks on newer roofs.
Can chimney flashing be repaired, or does it need replacing?
The answer depends on how much of the flashing is still sound. If the flashing is in good shape but the counter flashing has pulled out of the mortar, it can often be reset and resealed. If it is rusted through, badly bent or buried under old tar, replacement is the better value.
Why does my chimney flashing keep leaking after it was sealed?
Sealants dry out in the sun and split in the cold, so a leak patched with tar usually comes back. When the flashing itself is the problem, sealant just hides it for a season. The leak may also be coming from the crown, cap or brick, which no flashing repair will touch.
What are the signs of bad chimney flashing?
Look for stains near the chimney inside, damp or rotted framing in the attic and flashing that is lifted, rusted or covered in tar outside. Where the water appears is a clue: the firebox suggests the top of the chimney, and the ceiling beside it suggests flashing. A water test can confirm it before any work is done.
More questions? Call (267) 697-3471
Related services
Chimney Leak Repair
Finding and stopping water that gets in through the crown, cap, flashing or brick, before the water rots framing or ruins the flue.
Learn moreChimney Waterproofing
Waterproofing masonry chimneys with vapor-permeable repellents, not paint, as the last step in keeping a chimney dry.
Learn moreChimney Crown Repair
Repairing the concrete slab that caps the top of the chimney, with a proper overhang and drip edge.
Learn moreChimney Repair
Fixing cracked crowns, failing mortar, loose brick, leaky flashing and damaged flue tiles, matched to what an inspection actually finds.
Learn more
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