Lowes Chimney Sweep Blog

What Should You Do Immediately After a Chimney Fire?

By the Lowes Chimney Sweep crew · Plano, TX

If a chimney fire is happening right now, get everyone out of the house and call 911 — even if the roar seems to be dying down. Chimney fires reignite, and they spread into wall and attic framing where nobody can see them. On the way out, close the fireplace glass doors or air controls only if it takes seconds and carries zero risk. Once the fire department has cleared the scene, a second rule takes over: no fires until a Level 2 inspection clears the flue.

What a Chimney Fire Actually Is

A chimney fire is the creosote coating the inside of your flue catching fire. Creosote is concentrated fuel, and when it ignites it burns far hotter than the wood fire below it — hot enough to crack clay flue tiles, buckle metal liners, and drive heat through the chimney wall into the framing around it. That is why a fire that sounds like it is ending is still a 911 call: the roar can fade while creosote higher in the flue smolders, reignites, or quietly cooks the wood it sits against.

Not every chimney fire announces itself, either. The dramatic version roars like a freight train and throws sparks from the cap. Many burn slow and quiet instead — the homeowner notices nothing, and the fire is discovered later by the evidence it left behind. A quiet chimney fire does the same damage as a loud one.

What You Can Safely Check

After the fire department has cleared the scene — or if you suspect a fire you never witnessed — you can look for the evidence from the firebox opening and the yard. Puffy, honeycomb-textured creosote is the classic sign: creosote expands as it burns, so flat black glaze becomes airy and blistered. Pieces of cracked flue tile lying in the firebox, a damper that is warped or suddenly stiff, a discolored or distorted chimney cap, and new cracks in the exterior masonry all tell the same story. Looking is the limit. Do not light a test fire and do not climb on the roof — and understand that finding nothing from below proves nothing, because most of the damage happens higher in the flue than you can see.

The Rule: No Fires Until a Level 2 Inspection

This is a rule, not advice: after a chimney fire — confirmed or suspected — the fireplace is out of service until a Level 2 inspection clears the flue. Chimney fires crack clay tiles and damage liners in ways that are completely invisible from the firebox, and a cracked flue can pass flame and carbon monoxide straight into the structure of your home. The next fire you light in an uninspected flue burns directly against whatever the last one broke. "I think we might have had one" deserves exactly the same response, because the quiet fires do the same damage. The clearance comes from a camera run the full length of the flue — not from a flashlight and a good feeling.

How a Professional Clears the Flue

A Level 2 inspection sends a camera through the entire flue and examines every tile joint and liner seam, documented in photos and video. Our chimney inspection either clears the system in writing or shows you precisely what the fire broke, no guessing involved. If the camera finds cracked tiles or a buckled liner, the usual path is chimney liner repair or a full stainless steel reline, which restores a continuous, sealed flue inside the damaged one. The documentation matters for a second reason: many homeowners policies treat a chimney fire as a sudden, accidental event, and the inspection report with images is exactly what an adjuster asks to see. We put everything in writing with that in mind.

The DFW Factor

The DFW usage pattern is precisely how quiet chimney fires slip by. Fireplaces here sit idle for months, then run hard through a handful of cold snaps — sometimes all day during a hard freeze, sometimes burning whatever wood was on hand. That is the recipe: creosote built up over years of occasional, unswept use, then one long, hot burn. And because so few North Texas fireplaces are inspected annually, the honeycomb creosote and cracked tiles sit undiscovered until a sweep finds them later. If your fireplace worked hard through the last freeze and has not been looked at since, treat it as a "we might have had one."

Had a chimney fire — or found evidence that makes you suspect one? Keep the fireplace out of service and request a Free Online Quote for a Level 2 inspection, or call (214) 225-8874. We will camera the full flue, show you exactly what it found, and document everything your insurance company will ask for.

Quick Answers

How do I know if we had a chimney fire without realizing it?

The evidence outlasts the fire: puffy honeycomb creosote, pieces of cracked flue tile in the firebox, a warped or stiff damper, a discolored cap. Many chimney fires burn slow and quiet, which is why a suspected fire gets the same Level 2 inspection as a confirmed one.

The chimney looks fine from the firebox. Do we really need an inspection?

Yes — the rule exists because the damage is invisible from below. Chimney fires crack tiles and liners high in the flue, and only a camera run the full length of the system can confirm it is intact before another fire is lit.

Will homeowners insurance cover chimney fire damage?

Many policies treat a chimney fire as a sudden, accidental event, which is handled differently than slow wear and tear. Coverage depends on your policy, but the Level 2 inspection report with photos and video is the documentation adjusters ask for — and we provide it as part of the visit.

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