Spark Arrestor Installation in Floresville, TX

NFPA 211 is specific: the arrestor's openings must not allow a sphere larger than 1/2 inch to pass, and must not block a sphere smaller than 3/8 inch. That window keeps the screen tight enough to catch embers while still letting the chimney breathe. A screen with oversized holes lets sparks escape onto the roof; one that's too fine clogs with soot and chokes draft. We install arrestors built to that 3/8-to-1/2-inch standard rather than generic hardware cloth.

Only if it's the wrong screen or it's left dirty. NFPA 211 requires the arrestor to have a net free area at least three times the chimney outlet, specifically so it doesn't strangle the flow of gases. A properly sized arrestor maintains draft; the real risk is neglect — soot and creosote accumulating on the mesh can blind it over a season. We size to that 3x rule and recommend the screen be checked at your annual inspection so it stays open.

For chimneys serving solid-fuel appliances, a spark arrestor is required under NFPA 211, and many local fire codes mandate them outright — particularly in wildfire-prone and wildland-urban-interface areas where an escaping ember can ignite a roof or brush. Beyond code, it's simply sound fire practice. We install corrosion- and heat-resistant arrestors that meet the material and opening requirements, because a rusted or undersized screen defeats the purpose it was put there for.

Yes, and it usually should be. Many quality caps integrate a code-compliant arrestor screen, so a single component sheds rain off the flue, blocks animals, and arrests sparks at once. The key is that the integrated screen still meets the 3/8-to-1/2-inch opening rule and the 3x net-free-area requirement — some decorative caps don't. We verify the arrestor specification on any combined cap so you get genuine ember protection, not just a lid.

Yes — our crews cover Floresville's 1 ZIP code across Wilson County, including Riverwood, Eagle Creek Ranch, Historic Downtown, plus the surrounding communities.

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

Floresville's Wilson County housing mixes historic downtown homes with rural ranch properties and newer builds in Eagle Creek Ranch and Riverwood, where wood-burning is genuinely used for heat and creosote accumulation runs higher than in the suburbs. That makes the seasonal Level 1 inspection and creosote-class assessment the core of our work here -- a Class 3 glazed deposit is a documented fire hazard, not a maintenance note. Our CSIA-certified technicians measure liner condition and clearance to NFPA 211 on every system before the heating season. Spark Arrestor Installation is part of keeping that local housing stock safe, efficient, and up to code.