Crown sealing and crown rebuilds for chimneys in Fisher Island
Our family team explains the crown condition, the proposed method and the care the new work needs.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
Crown damage worth mentioning when you call
- A gap beside a flue tile
- Dried or split caulk around the flue
- No overhang past the brick face
- Brick joints washing out just below the top
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Chimney crown work in Fisher Island, explained
A framed chimney has a cover, not a crown
Some chimneys are wood-framed boxes around a factory-built metal flue. Their top is a sheet-metal chase cover, and there is no masonry crown to repair. From the yard, the two can look alike, especially under a painted finish.
We confirm how the chimney is built before talking about crown work. If the top turns out to be a chase cover, we say so and explain that it belongs to a different repair. Nobody should pay for crown sealing on a chimney that has no crown.
Setting a precast crown on a bond break
A precast crown sits on a mortar bed over the brick. Brick industry guidance places a bond break between the brickwork and that setting bed. The break lets the crown move a little with temperature without cracking the masonry beneath it.
That layer is invisible once the job is done, so ask about it. Your estimate should say how the crown is bedded, how it is separated from the brick and how the joints at the flues are sealed. Those details decide how well the new top performs.
Caulk spread over crown cracks is not a repair
Brick industry guidance observes that caulking is often used to hide poor workmanship rather than as a planned part of construction. On chimney tops that shows up as sealant smeared along cracks across the crown. It may slow water briefly and then peel.
We remove surface smears before assessing the concrete underneath. Sealant has one proper job on a crown, which is the flexible joint at each flue. Cracks across the surface call for a coating on sound concrete or for replacement. We explain which one applies.
When the crown problem is really a rebuild
Sometimes the crown is only the most visible failure. The top may be leaning, courses may be loose or the masonry may have separated from the house. A new crown alone will not make that sound. Those are structural questions.
We explain when crown repair is enough and when the chimney top needs rebuilding first. A crown formed on loose brick can crack again as the masonry moves. The rebuild, if needed, is described and priced as its own job, and the crown is planned as part of that work.
Crown work we price line by line
- Crown surface and edge condition
- Sealant joint around the flue tiles
- Flue liner projection above the crown
- Workmanship warranty on agreed crown work
Questions to ask before crown repair
Why does a new crown need to overhang the brick?
An overhang with a drip edge throws water clear of the brick face instead of letting it run down the chimney. The code also calls for a drip edge on the top of a masonry chimney. Without one, water can keep soaking the top courses.
Should I ask about the crown if the fireplace is never used?
Yes. The crown keeps rain out of the masonry whether or not you light fires. Water entering an unused chimney can still damage brick, the flue and nearby ceilings. A free inspection tells you whether the top needs attention.
Can a bond break be added to a crown that lacks one?
On an existing crown, the practical step is opening the joint at each flue liner and sealing it properly with backer material and elastomeric sealant. On a new crown, the bond break is built in. We explain which applies after inspection.
More Ways to Care for Your Fireplace
- Gas Fireplace VentingAssess and repair the gas fireplace vent arrangement using components suited to the identified system.
- Wood-Burning Fireplace Insert InstallationFit a wood-burning insert after assessing its host fireplace and full connection requirements.
- Chimney Damper Repair and ReplacementRestore a usable damper mechanism after checking the plate, frame and control linkage.
- Chimney Masonry RepairRepair affected chimney brickwork and joints with materials selected for the construction already in place.
We received your request
Our team will contact you to arrange your inspection.
Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo