Chimney Cap
Flue termination measured, then a stainless or copper cap fitted to NFPA 211.
Learn moreA throat damper is a cast-iron plate resting in a cast-iron frame, and it was never built to seal — even a new one lets conditioned air past the metal-on-metal fit all summer. A top-sealing damper sits at the crown instead, with a silicone rubber gasket that compresses against the flue tile and closes the chimney like a lid. It is operated by a stainless cable running down to a handle in the firebox, and while closed it doubles as a rain cap and an animal guard. We measure the flue termination, seat the unit on the crown, and cycle it under a draft check, so the seal and the open position are both verified before sign-off.
Prices shown are starting estimates and may change with the condition, access, and scope we find on site. Only a written quote from an on-site visit is a price we commit to.
A throat damper is a cast-iron plate resting in a cast-iron frame, and it was never built to seal — even a new one lets conditioned air past the metal-on-metal fit all summer. A top-sealing damper sits at the crown instead, with a silicone rubber gasket that compresses against the flue tile and closes the chimney like a lid. It is operated by a stainless cable running down to a handle in the firebox, and while closed it doubles as a rain cap and an animal guard. We measure the flue termination, seat the unit on the crown, and cycle it under a draft check, so the seal and the open position are both verified before sign-off.
At Texas Chimney Experts, a top-sealing damper installation is never guesswork. We scope every job from a graded, photographed inspection first — the NFPA 211 level the evidence calls for — so the work is matched to what your flue and masonry actually need, with the report to prove it. The documented inspection is the record the top-sealing damper installation is built on.
Chimney inspectionWe've worked on 1,000+ DFW homes over 10+ years. Every job — small sweep or full rebuild — runs the same way: certified technicians, written quotes, photo reports, warranty in writing.
CSIA-certified inspectors only
Written quote before any work begins
1-year workmanship warranty
Insurance-grade photo documentation
Family-owned, CSIA-certified, NFPA 211–compliant. We're the team you call when you want it done right the first time — no rotating subcontractors, no upsell pressure, no surprises. Same techs, same trucks, same standard.

The standard is condition-driven, not calendar-driven: NFPA 211 ties cleaning to a measured 1/8" of creosote accumulation, and a Level 1 inspection is the way we confirm you've reached it. For a wood-burning fireplace in regular use that typically lands at once per heating season — but we measure the buildup and tell you what the flue actually shows rather than assuming.
Yes — and verifiably so. Our inspectors hold current CSIA (Chimney Safety Institute of America) certifications you can confirm yourself in the CSIA member directory at csia.org, and our fireplace work is handled by NFI specialists. We name the standard we inspect to so you can check the credential behind the report.
Yes. We respond 24/7 (subject to crew availability) to the situations that can't wait for a diagnosis later — an active water leak into the home, an animal trapped in the flue, post-fire hazards, and storm damage. We make the system safe first, then document the cause; same-day in most cases.
Always — and with the evidence attached. Before any work starts you receive a written quote backed by photos of exactly what we found and why it needs attention. Final pricing follows the documented condition of the chimney and anything the inspection turns up, not a number guessed before we've looked.
Inspection Program is our annual maintenance plan at $19.99/month ($240/year): a documented Level 1 inspection and sweep every year ($248 value), priority scheduling, 10% off all repairs, and emergency-response priority. It's the way to keep a year-over-year record of your system's condition. Cancel anytime, no contract.
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Free written quote. Same-week scheduling. 24/7 emergency response when you need it.
Active leak, animal in flue, post-fire damage, or smoke event? Real humans on the line 7 AM to 12 AM every day — replies in under 2 minutes. Tech dispatch within 2 hours during business hours, subject to crew availability after-hours.
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