Spark Arrestor Installation in Alamo Heights, TX

A spark arrestor is the mesh screen that holds burning embers in, keeping them from escaping the flue and setting the roof or nearby brush alight. A cap is the lid that keeps rain and animals out. The arrestor shields the outside world from the fire within; the cap shields the flue from the weather outside. The two are often combined in a single fitting, which is where the confusion comes from, but the arrestor is specifically the code-sized screen, and we can fit one onto a cap you already own.

No screen over the flue even where a weather cap is present, embers or sparks spotted leaving the chimney top, or an existing arrestor that has rusted through, torn, or sooted solid. A local burn code or an insurer in a fire-prone area can require one as well. Homes near trees, dry brush, or wildfire terrain, and anyone burning wood, stand to gain the most from a functioning screen on every flue.

NFPA 211 requires the screen to be a corrosion-resistant material with openings no smaller than 3/8 inch and no larger than 1/2 inch. The 3/8-inch floor keeps the screen from sooting shut and strangling the draft; the 1/2-inch ceiling keeps embers from getting out. That two-sided limit is what makes an arrestor an engineered fire component rather than a plain cap collar. Some wildfire jurisdictions set stricter rules, so the local requirement controls whenever it's tighter.

Yes — and in these zones the requirement usually runs tighter than the NFPA baseline. Inside a designated fire-hazard or wildland-urban-interface area, one ember that escapes the flue can start a wildfire, which is why local code and a lot of insurers require a compliant arrestor on every solid-fuel flue. Our CSIA-certified techs verify the mesh-and-material rule your jurisdiction enforces, install to that spec, and record the screen size so it's on file for your inspection or insurer.

Embers that clear the flue can drop onto the roof or into nearby brush; over a combustible roof or beside dry vegetation, that's a live ignition point for a roof or wildland fire. The screen is cheap insurance against a costly fire. And an open top with no cap is also letting in the rain and animals a cap is designed to stop, which is why we frequently fit the arrestor and cap together.

Bolt-on and clamp-on screens and arrestor-caps are both available, but the work happens at the flue top on the roof, the mesh has to land inside the code-required size range, and the screen has to seat firmly to the tile or pipe and hold in wind. A screen that's loose or sized wrong fails at the one job it exists for — holding embers in — so we verify both the fit and the mesh size against the code that applies to your property.

Usually not. Powdery joints in pre-war masonry mean the lime mortar's reached the end of its service life, not the brick. We grind out the failed joints by hand, repoint with a matched lime blend, and rebuild only what's structurally gone. You get photos of every joint we cut before we cut it. Full rebuilds on sound 1920s brick are rare, and we'll say so when yours doesn't need one.

Two reasons. Strength: modern portland mortar is harder than 1920s brick, and hard mortar forces movement into the brick face, which spalls it. Appearance: a gray smear across cream-colored lime joints reads like a scar on a house this age. We match the binder, the sand color, and the joint tooling, so the repair disappears and the brick keeps doing the moving it was designed to do.

Sometimes. Age alone doesn't fail a flue — cracks, gaps, and eroded mortar joints between tiles do. The 2021 freeze split plenty of old tiles in this neighborhood, and you can't see that damage from the firebox. We run a camera up the flue, document every tile, and hand you the images with the written report. If it's sound, we say sound.

Yes — our crews cover Alamo Heights's 1 ZIP code across Bexar County, including Olmos Park line, Terrell Hills, Lower Alamo Heights, plus the surrounding communities.

We offer same-week scheduling across Alamo Heights, booked by a real person in under two minutes, 7 AM to midnight every day.

Alamo Heights is San Antonio's historic affluent enclave — 1920s-40s Spanish-revival and brick mansions near Olmos Park — so the inspection is period-correct: masonry repointing, clay-liner relining, and crown condition are documented on chimneys approaching a century old, where age drives the rating. Spark Arrestor Installation is part of keeping that local housing stock safe, efficient, and up to code.

Spark Arrestor Installation in Alamo Heights starts from $275, but the honest number depends on what a craftsman finds on site — we won't quote premium work blind. A CSIA-certified technician inspects the actual condition, then hands you an itemized, transparent written quote tied to the findings and built to one national standard. No teaser pricing, no surprises. Call (214) 444-8103 for a free, no-pressure Alamo Heights quote.

Yes — we run same-week and emergency spark arrestor installation across Alamo Heights, scheduled by a real person 7 AM to midnight every day. For an active chimney hazard, call (214) 444-8103 and we prioritize Alamo Heights dispatch so a craftsman is on it fast.

Our Alamo Heights crew lives in and works the metro across Bexar County, including Olmos Park line, Terrell Hills, Lower Alamo Heights — a certified, local spark arrestor installation team genuinely near you, holding the same national craftsmanship standard on every job, not dispatched cold from another city. Call (214) 444-8103.