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 New Hope, PA
A chimney sweep in New Hope can seal hairline cracks in a chimney crown or rebuild a crown that is breaking apart, so rain stops soaking into the brick from above. Dial (267) 714-1009 to talk with a local chimney sweep about the crown.
At the very top of a masonry chimney sits the crown, a sloped slab that seals the brick around the flue and sheds rain. Because it faces every storm, freeze and heat wave head on, the crown is usually the first part of the chimney to fail. Water that gets through a cracked crown soaks the top courses of brick and expands as it freezes.
It helps to separate the crown from the cap. 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.
Crowns often fail sooner than they should for a few common reasons. Many original crowns are thin mortar caps rather than proper concrete, with no drip edge and the flue tile locked tight in the mix. Mortar shrinks and cracks under weather, and an expanding flue tile will split a crown that has no room for movement.
If the problem goes deeper than it first looked, a New Hope chimney sweep may also recommend chimney cap installation or chimney leak repair.
Dealing with this in New Hope, PA right now? Call (267) 714-1009 to reach a nearby chimney sweep.
Call nowThe process
The crown repair process
The right fix depends on whether the crown is basically sound with surface cracks or failing all the way through.
Inspect the crown
The technician checks the crown for crack size and depth, overhang, slope and the joint around the flue tile. The flue tile, cap and upper brick are checked at the same time, since crown damage often spreads to them.
Clean the surface
The crown is scrubbed of dirt, growth and loose pieces so repair material can grip. Skipping prep is the main reason crown patches peel off.
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 is the least invasive fix when the crown is still intact.
Rebuild if needed
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.
Leave room to move
The gap around the flue tile is filled with a flexible sealant rather than locked tight in concrete. Without it, the hot flue tile will crack a new crown just like the old one.
Finish the top
A chimney cap is installed or reset over the flue once the crown has cured. Damaged upper brick and joints are often handled in the same visit.
What is included
What crown repair covers
Crack sealing
Hairline cracks are sealed with a flexible crown coating to extend the life of the crown.
Expansion joints
A bond break is added so the flue tile can expand freely to prevent the most common type of crown crack.
Crown rebuilding
A failed crown is replaced with a properly built concrete crown that sheds water past the brick.
Overhangs
An overhang with a drip edge is formed into the crown so water drips clear instead of running down the brick.
Related service
Chimney Crown Replacement New Hope, 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. A form is built around the top of the chimney, a bond break goes around the flue tile, and the new crown is cast with a slope, an overhang and a drip edge.
Crown work in New Hope depends on the season. 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
Chimney crowns in New Hope take the full force of the weather year round. Homes in New Hope and nearby towns like Newtown Grant, Newtown, Doylestown and Richboro include plenty of older chimneys whose crowns were troweled from mortar rather than built as proper concrete crowns, so sealing cracks early or replacing a poorly built crown protects the rest of the chimney.
Need chimney crown repair around New Hope? Call (267) 714-1009 for a New Hope chimney sweep who serves the towns around it too.
Chimneys in this climate
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, 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 New Hope is usually booked in the fall, before the first cold night.
Why call
Why fix it now
Safer fires
Small chimney problems caught early usually stay small repairs.
Familiar with local homes
Chimney sweeps in New Hope know the chimneys and fireplaces common in local homes.
Clear next steps
Ask the sweep about the cause, the options and the estimate before work starts.
Common questions about chimney crown repair
How serious is a cracked chimney crown?
Small crown cracks deserve attention because they let water straight into the chimney. The water it lets in damages the brick, the flue and the framing around the chimney. Sealing a crack early is a small job, while ignoring it can lead to rebuilding the top of the chimney.
Why did my chimney crown crack?
Crowns crack from water freezing in small cracks, from being built thin out of mortar, and from the flue tile expanding against them. Thin mortar crowns with no room for flue tile movement tend to crack early. Once a crack forms, water gets in, freezes and widens it every winter.
When does a chimney crown need replacing?
A well-built crown can last a very long time, while a thin mortar crown may crack within a few years. Poorly built crowns crack early and need attention more often. An annual inspection catches cracks while they can still be sealed.
Is a chimney crown the same as a chimney cap?
The crown is the concrete or mortar slab that covers the top of the masonry around the flue, and the cap is the metal cover that sits over the flue opening. They protect different parts of the chimney. Adding a cap will not fix crown damage.
Can a cracked chimney crown be repaired?
How far the cracking goes decides it. Minor surface cracks are usually sealed with an elastomeric crown sealer. If the crown is cracked through, crumbling or missing pieces, replacement is the better option.
More questions? Call (267) 714-1009
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
Finding and stopping water that gets in through the crown, cap, flashing or brick, instead of patching the stain on the ceiling.
Learn moreChimney Masonry Repair
Repairing spalled brick, crumbling mortar, cracks and loose courses on masonry chimneys, with materials matched to the original masonry.
Learn moreChimney Waterproofing
Protecting chimney masonry from rain with a penetrating repellent, to slow freeze-thaw damage and spalling.
Learn more
Looking for something else?
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(267) 714-1009
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