Almost every chimney in the metroplex left the builder with the cheapest galvanized cap that passed inspection. Fifteen Texas summers later it is rust, streaks, and loose screws. Replacement is the one chance to put on a cap you never think about again.
A chimney cap is not a place where quality is invisible. The difference between a big-box galvanized cap and a properly sized stainless steel one is the difference between doing this again in eight years and never doing it again. When a cap has rusted through, lost its welds, or was simply the wrong size from the day it was installed, replacement done right closes the subject permanently.
Done right means measured. Flue tiles in DFW come in a dozen sizes, chimneys carry one flue or four, and a cap that merely rests close to correct will leak, rattle, or choke the draft. We measure the flue and the crown, match the cap to the actual chimney, and anchor it the way the wind here demands. If your existing cap is structurally sound and just loose or torn, cap repair is cheaper and we will steer you there instead.
Galvanized steel is a countdown from the day it is installed. 304 stainless simply does not corrode in this climate, and the better caps carry lifetime warranties because the manufacturer knows it. Buy once.
An undersized lid lets wind-driven rain reach the flue; an oversized one can create turbulence that pushes smoke back down. A measured cap often quietly cures a draft annoyance the old cap was causing all along.
On multi-flue chimneys, a single fabricated cap covering the whole crown replaces two or three individual caps, protects the crown surface itself from rain, and looks like it belongs on the house.
New caps go on with masonry anchors or tile clamps rated for the mounting surface, torqued into sound material. The cap that blows into your neighbor’s yard is almost always the one that was screwed into crumbling mortar.
The old cap comes off and gets an autopsy in the photos: where it rusted, where the fasteners let go, what it let through. The flue and crown get measured properly, and we check the crown while we are there, because a cap swap is the cheapest moment to catch a crack that would otherwise be found by your ceiling. Then the new cap goes on, anchored to sound material, leveled, and sealed only where sealing belongs.
You choose the metal: 304 stainless for essentially every home, 316 marine-grade where budgets allow overkill, or copper where the house calls for it. Every option outlives galvanized by decades. You get the photos, the warranty paperwork, and a chimney top you can stop thinking about.
Over one purchase, galvanized looks cheaper. Over the life of your roof, stainless is the least expensive cap you can buy, because it is the only one you buy once. The math is not close and we will show it to you.
316 adds molybdenum for salt-air corrosion resistance, which matters on a coastline more than in Collin County. 304 is the correct answer for nearly every DFW home; we stock both and will not upsell you to metal you do not need.
Yes. We will note anything else we see up there with photos, but a cap replacement is a cap replacement. No bundled surprises, no pressure, and the crown observation is free because we are already standing on it.
If the old cap was wrong-sized or clogged, usually for the better. A correctly sized cap with clean spark-arrestor mesh is neutral to draft by design, and persistent smoke problems point to the flue instead, which is its own diagnosis.
Between the failed old cap and the new one, every week uncapped costs you. Rain enters the flue by the gallon, soaks into clay tiles and mortar joints, and starts the freeze-thaw damage that ends in relining. The damper rusts. The firebox smells sour. Starlings discover the opening with astonishing speed, and a nest on the smoke shelf is both a blockage and a fire load.
The Chimney Safety Institute of America calls the cap the single most cost-effective protection a chimney has, and the National Fire Protection Association codes require spark arrestor protection for good reason: an uncapped flue throws embers as well as swallowing water. Replacement is not cosmetic work.
"Very pleased with the professionalism and promptness of service. The chimney sweep was done quickly and efficiently at significantly less cost than the first quote I got from another company. Happy to recommend Lowes Chimney Sweep to anyone in Plano!"
"Outstanding chimney sweep service from start to finish. They were punctual, courteous, and left our chimney spotless with no mess in our home. I won't use anyone else for chimney services in Dallas TX!"
More reviews from homeowners across the metroplex are on our reviews section, or learn more about our team before you book.
A standard single-flue stainless cap installed is one of the most affordable permanent upgrades in this trade. Custom multi-flue fabrications cost more because they are built for your chimney specifically. Firm quote before work begins, always.
We measure the flue tile’s outside dimensions and the crown, on the roof, with a tape. Caps clamp to the tile or anchor to the crown depending on the design, and the measurement determines which is right. Guessing from the ground is how the last one ended up wrong.
304 stainless steel. It handles our heat, hail, and humidity swings without corroding and typically carries a lifetime warranty. Copper performs the same and is chosen for looks. Galvanized is what you are replacing.
Yes, a custom full-coverage cap spans the entire crown and shelters every flue under one lid. It costs more than individual caps but protects the crown concrete too, and on large chimneys it is usually the better engineering.
A top-sealing damper cap combines the cap with an energy-sealing lid you control from the fireplace. If your throat damper is rusted open, it can solve two problems in one part, and we will tell you if your chimney is a candidate, related to damper repair.
Yes, removal and disposal are part of the job. We also photograph it before it goes in the truck so the failure that justified replacement is on record for you or your insurer.
Standard replacements are done in under an hour once we are on the roof. Custom fabrications need a measuring visit first, then installation when the cap is built.
Spark arrestors are required in many DFW jurisdictions and every authority recommends full caps. More practically: no inspector, insurer, or buyer sees an uncapped chimney as anything but a defect, which matters at resale.
Every one of the 98 DFW cities we cover, Sundays included. Our service areas page lists them all, and we confirm your address when you book.
A structurally sound cap that is merely loose or torn calls for chimney cap repair at a fraction of the cost. The concrete the cap sits beside is the crown, handled by crown repair or crown replacement when it has failed. Prefab metal chimneys use a chase cover instead of a cap, water already inside becomes leak repair, and the state of the flue below is confirmed by a chimney inspection. Finished installations are on the before and after gallery.
Measured on your roof, built in stainless, anchored for Texas wind, photographed for your records. Seven days a week across 98 DFW cities.
Call (214) 225-8874It cost eleven dollars less per house, times four hundred houses in the subdivision. Builder-grade caps are not a scandal, they are a spreadsheet, and the replacement cycle they create was always going to be the homeowner’s to pay.
Big-box caps come in four sizes; flue tiles come in a dozen. A cap that clamps to a tile it almost fits works loose in a season. The measurement takes two minutes on the roof and is the entire difference between installed and resting.
Spark arrestor codes specify mesh small enough to stop embers and large enough not to clog into a draft blockage. Caps with decorative oversized mesh pass the eye test and fail both jobs. We install to the spec, not the look.
We are standing on it anyway. A hairline crown crack found during a cap swap costs a photo. The same crack found two years later by a water stain on your ceiling costs a great deal more, and telling you early is the whole point of hiring someone honest.
Straight answers from our DFW chimney pros before you book.
