New chimney caps installed for Bithlo homeowners
From a rusted lid to a missing screen, cap work in Bithlo starts with a free inspection and ends with a secure fit.
- Licensed & insured
- Locally run
- Family owned and operated
- Same-day service available
Checked before a new cap goes on in Bithlo
Each item below is checked at your Bithlo home before a cap is ordered and appears in the estimate you approve.
- Number of flues and how they sit on the crown
- Listed termination parts on a factory-built chimney
- Nesting material or debris in the flue
- Workmanship warranty on the installation
Getting the cap right on Bithlo chimneys
How the job runs in Bithlo, and where your choices come in.
Why the building code uses the word cap for the crown
In section R1003.9.1 of the Florida Building Code, Residential, the concrete, metal or stone top of a masonry chimney is called its cap, and it needs a slope, a drip edge and a caulked bond break where the flue liners come through. The trade usually calls that part the crown.
The metal cover people picture when they say chimney cap sits above it. We use both words carefully in your estimate so a crown repair and a flue cap replacement never blur together, and so a later buyer or inspector reading the paperwork knows exactly which part was replaced.
Caps that mount on the crown over several flues
A multi-flue or outside-mount cap covers more than one opening and fastens to the crown instead of a single tile. HY-C describes flanged caps of this kind secured with masonry fasteners set into the crown surface.
Because the crown carries the load, its condition matters as much as the cap's size. We measure the footprint of every flue, the space between them and the crown area available for the flanges. If one opening serves an appliance with its own termination rules, we sort that out before recommending a shared cover.
Leaving enough room under the lid
Section R1003.9.3 of the Florida Building Code, Residential, covers rain caps on masonry chimneys. The open area under that cap has to be four times or more the net free area of the flue outlet it covers.
In plain terms, the lid has to sit high enough and the sides open enough that smoke is not squeezed on its way out. A lid pushed down by a fallen branch or a cap sized for a smaller flue can fall short. We check the clearance on the cap we fit, and if the old cap was pinched down, we note it as one possible reason for past draft complaints.
The bond break between the crown and the flue liner
R1003.9.1 asks for a caulked bond break around the flue liners where they pass through the masonry cap, referencing ASTM C1283. The joint lets the liner and the crown move independently.
When we install a cap, we avoid filling that joint with mortar or bridging it with rigid material. If the joint is open, cracked or missing, we note it as a crown detail to address. It is a small item that matters for water at the top of the chimney, and it is priced separately so the cap scope stays clear.
Other work in Bithlo
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Learn more about chimney cap installation and replacementBithlo services
Cap replacement answers for Bithlo homeowners
Questions we hear on cap visits in Bithlo, answered plainly.
Do I need to be home while you replace the cap in Bithlo?
Not always. We need access to the roof and to the fireplace below if the damper should be checked. If you can be home for the walkthrough at the end, that is a good time for questions.
Our flue tile is almost flush with the crown. Can it still take a cap?
Perhaps, but not every style. BIA Technical Note 19B suggests the liner stand at least two inches above the masonry cap, and a bolt-on cap clamps to that projection. With a tile cut flush, a crown-mounted cap may fit, or the top may need masonry work first, which we price on its own line.
Request your free estimate
Share the job details and arrange a free inspection with our local team.
- Free inspection
- No hidden fees
- Family owned and operated
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