If a chimney fire is happening right now, put the phone down after you read this sentence: get everyone out of the house, call 911 from outside, and do not go back in. Everything else in this guide can wait until the fire department has left.
If the fire is already over, here is the short version. Do not light another fire. Do not clean anything up. Photograph what you can see. Call your insurance agent. Then book a Level 2 camera inspection before anyone uses that fireplace again, because the damage a chimney fire leaves is almost entirely inside the flue where you cannot see it.
We have walked a lot of Front Range homeowners through the days after a chimney fire. Most are shaken, a little embarrassed, and unsure whether it was a big deal. For how these fires start and what the warning signs sound like, read our guide to chimney fire causes and warning signs. This article is the response side.
If the Fire Is Still Burning
The live emergency sequence is short: everyone out, 911 from outside, close the damper and doors only if you can do it safely, and never put water on it. Our guide to chimney fire causes and warning signs walks through that sequence in detail, along with the sounds and signs that tell you a fire is under way. One point worth repeating here because it matters for the days that follow: once you are outside, watch the roof and the neighbors' roofs. Burning creosote flakes ride the draft out and land on shingles, decks, and dry grass, and the crew needs to know if you saw embers land.
Why a Small Fire That Went Out on Its Own Is Not Over
This is the part we most need homeowners to hear. A lot of chimney fires never get the roar. They burn slowly in one section of the flue, and the only sign is that the fireplace drew unusually hard for a while. Some homeowners only learn about it when we run a camera up the flue during a routine sweep and find puffy, glazed creosote and a line of cracked tiles.
A flue is built to carry exhaust in the range of a few hundred degrees. A creosote fire inside it can climb well past 2,000 degrees. Clay tile, stainless steel, mortar, and factory built pipe all react badly to that jump, and the damage does not heal when the fire goes out. From the living room, everything looks the same afterward. That is the problem.
A damaged flue lets the next fire's heat and gases reach the brick, framing, and insulation around the chimney, which is how the second event becomes a house fire. NFPA 211, the standard for chimneys and venting in the United States, calls for a Level 2 inspection after any chimney fire. We treat that as a firm rule.
What a Chimney Fire Does to Each Type of Chimney
Different chimneys fail differently, and knowing what yours is built from explains why the repair recommendation lands where it does.
Table 1. Typical chimney fire damage by chimney type and component, and what it means for the repair path.
| Component | What the fire does to it | How we find it | Usual repair path |
|---|---|---|---|
| Clay tile liner (most Denver masonry chimneys) | Rapid heating cracks tiles, and expansion can shift whole tiles out of alignment, leaving gaps at the joints | Camera inspection of the full flue length | Repair individual tiles or reline with stainless steel |
| Stainless steel liner | Warping, buckling, and split seams, especially in thinner flexible liners | Camera inspection plus checking the top and bottom connections | Replace the liner; a damaged liner is rarely worth reusing |
| Prefab (factory built) fireplace and pipe | Pipe sections distort, joints separate, refractory panels crack, and the chase framing can be scorched | Camera up the pipe and visual check of the firebox and chase | Replace the pipe and often the firebox; the listing assumes undamaged parts |
| Mortar joints between tiles and bricks | Heat cooks the mortar, which crumbles and opens paths for gases into the brick | Camera for the flue joints, visual and probe for exterior brick | Tuckpointing outside, reline or joint repair inside |
| Smoke chamber | Parging cracks and falls away, exposing corbelled brick and open joints | Camera and mirror from the firebox | Parge the smoke chamber with refractory mortar |
| Crown and cap | Thermal shock cracks the crown; the cap screen can melt or warp | Roof inspection | Crown repair or rebuild, cap replacement |
| Adjacent framing and attic | Charring where wood touches or nearly touches the chimney, scorched insulation | Attic and roof deck inspection | Structural repair before the chimney is used again |
One Colorado detail matters here. Many of Denver's older brick chimneys were built before clay liners were common, so the fire may have acted directly on brick and mortar already tired from a century of freeze-thaw cycles.
Why a Level 2 Camera Inspection Is the Standard Response
A Level 2 is the one with the camera, and it is the level NFPA 211 calls for after a fire. If you want the full breakdown of Levels 1, 2, and 3 and when each applies, our guide to chimney inspection levels covers it. Here we stick to what the inspection is for once a fire has happened.
After a chimney fire the camera does two jobs. It documents damage so the repair scope is based on what is actually there, and it produces the images and written report your insurer will ask for. We photograph every finding, note its location in the flue, and put it all in a report you can hand to an adjuster.
Do not have the chimney swept before the inspection. Sweeping removes evidence, and a brush dragged across shifted tiles can knock them further out of place. Inspect first, then sweep, then repair.
The Insurance Side, in General Terms
We are chimney people, not insurance people, so this is general. Your policy and your agent are the final word.
Many standard homeowners policies treat a sudden chimney fire as a covered peril, in the same category as a kitchen fire or lightning strike. What they usually do not cover is damage from long term neglect or normal wear, which is why an adjuster may ask when the chimney was last swept. A record of regular service helps. Our guide to chimney storm and hail damage claims in Colorado covers the documentation habits that apply here too.
- Photograph everything before anyone touches it. Firebox, hearth, the chimney exterior from the ground, soot on walls or ceilings, and any debris in the yard. Take more than you think you need.
- Get the fire department incident number before the crew leaves. Their report is an independent record that the event happened.
- Call your agent or file the claim promptly. You do not need to know the repair cost yet.
- Do not clean up or repair anything until the claim is documented. A swept flue and a scrubbed firebox look like nothing happened.
- Get the Level 2 inspection and hand over the report. A dated written report with camera images is the most useful document in the file.
- Keep every receipt, including the inspection and any hotel nights if the house was uninhabitable.
If the adjuster wants a second opinion, that is normal. Cooperate, and ask for their findings in writing.
What the Fire Department Can and Cannot Tell You
Fire crews do their job well: confirm the fire is out, check the attic and walls with a thermal camera for hidden heat, and decide whether the house is safe to sleep in tonight. If they say do not stay, do not stay.
What they generally cannot do is inspect the inside of your flue. They do not carry chimney cameras, and most departments will tell you plainly to have a chimney professional look at it before using it again. "The fire is out and the house is fine" is not a statement that the chimney is fine. Both can be true at once.
The Repair Paths After a Chimney Fire
Once the report is in hand, the repair conversation usually lands in one of a few places.
Table 2. The three main repair paths after a chimney fire, when each applies, and what it does and does not fix.
| Repair path | When it applies | What it fixes | What it does not fix |
|---|---|---|---|
| Targeted tile and joint repair | A few cracked tiles or open joints in an otherwise sound clay flue | Restores a continuous flue surface at the damaged spots | Widespread cracking, shifted tiles, undersized flues |
| Stainless steel reline | Many cracked or displaced tiles, no liner at all, or a damaged existing metal liner | A new, continuous, insulated flue inside the old chimney | Structural damage to the brick, crown, or framing |
| Partial or full rebuild | Brick and mortar failure above the roofline, a cracked crown, or a chimney already leaning or spalling | Replaces the masonry structure itself | Interior flue problems unless combined with a reline |
| Prefab pipe and firebox replacement | Any factory built system with distorted pipe or cracked refractory panels | Restores the listed assembly the manufacturer tested | Chase framing damage, which is a carpentry repair |
Targeted tile repair
When the camera shows a few cracked tiles and the rest of the flue is sound, the tiles can sometimes be repaired in place. Our guide to repairing defective flue tiles in Denver explains the limits. After a fire, heat damage tends to run along a length of the flue, so this option is less common than homeowners hope.
Relining
A stainless steel liner is the most common outcome after a serious fire in a masonry chimney. It gives the fireplace or stove a new flue, correctly sized for the appliance and insulated so the exhaust stays warm and drafts well in our thin air. Our chimney lining service page covers what a reline involves.
Rebuilding
When the fire finished off masonry already struggling with freeze-thaw damage, spalling, or a cracked crown, the honest answer is often a rebuild from the roofline up. Our guide to chimney rebuild versus repair walks through how we make that call, and our chimney repair service page covers the masonry work involved.
Replacing a prefab system
Factory built fireplaces are listed as a complete assembly. Once the pipe has distorted or the refractory panels have cracked, the listing no longer describes what is in your wall. Replacing the damaged parts, and sometimes the whole unit, is the path.
Pricing for any of these depends on what the camera finds, so we do not quote it here. Our pricing page explains how estimates work.
Why One Chimney Fire Raises the Odds of a Second
A chimney fire is not bad luck. It is creosote plus heat, and creosote comes from how the fireplace was used. Same wood, same habits, same sweeping schedule means the same conditions are still there the week after the repair.
The flue itself also changes. Cracked, rough surfaces catch deposits faster than smooth ones. And there is a human factor: some homeowners come away thinking the fire "cleaned out" the chimney and burn harder than ever.
The prevention side is not complicated, and we will not repeat it here: seasoned wood, hot fires instead of smoldering ones, a sweep on the schedule your use calls for, and nothing but firewood in the firebox. Our guide to preventing creosote buildup explains the fuel and burning habits, and the prevention section of our chimney fire guide covers the rest. The one thing we add after a fire is a mid-season check the first year, so we can see how the repaired flue is behaving under your actual use before the deposits have a chance to build.
Getting Back to Burning: The Restart Sequence After Repairs
The last question is usually "so when can I light a fire again?" The answer has an order to it.
- Wait for the written clearance. Whether the repair was a few tiles, a full reline, or new prefab pipe, the job is not done until the flue has been looked at again after the work and you have that in writing. Keep it with the original inspection report and the insurance file.
- Follow the cure-in instructions for anything new. Fresh refractory mortar, new smoke chamber parging, and replacement refractory panels need to dry and cure before they see a full fire. The product instructions spell out the wait and the size of the first fires. Several small fires before a full load is the usual pattern.
- Start small and watch the draft. Your first fires should be modest, with the damper fully open and the doors as the manufacturer specifies. A relined flue often drafts differently from the old one, usually better, and you may burn through wood faster until you adjust.
- Check the wood, not just the chimney. If the fire started from creosote, the wood pile is part of the cause. A moisture meter costs little and settles the argument. Anything that reads over 20 percent goes back on the stack for another season.
- Put the mid-season check on the calendar now. Book it for six to eight weeks into regular use. That visit tells us whether the repaired flue is staying clean under your habits, and it is far easier to adjust habits in January than to explain a second fire in March.
- Keep the paper trail for the next owner. The fire, the inspection report, and the repair records belong in the disclosure file if you ever sell. A clean record turns a red flag into a selling point.
The Part Nobody Talks About: Feeling Foolish
Almost everyone we meet after a chimney fire apologizes to us at some point. They feel they should have known. They are embarrassed the fire department came.
Here is what we tell them. Chimneys are one of the few systems in a house that hide their problems completely until they fail. The flue is a dark tube inside a wall. Most people who have a chimney fire had been doing what their parents did and what the previous owner did. That is not carelessness. It is the ordinary state of chimney knowledge in this country.
The homeowners who do well afterward take the next steps in order. Get the inspection. File the claim. Make the repair. Change the habits. Then enjoy the fireplace again with a clear head.
Frequently Asked Questions
The fire only lasted a minute and went out on its own. Do I really need an inspection?
Yes. A short chimney fire can still crack clay tiles, warp a metal liner, and loosen mortar joints, all inside the flue where you cannot see it. NFPA 211 calls for a Level 2 inspection after any chimney fire, and that is the standard we follow before clearing a chimney for use.
Can I use my fireplace once the chimney has cooled down?
Not until a camera inspection has confirmed the flue is intact. A cracked liner can let heat and gases reach the framing around the chimney, so the second fire can be far worse than the first even though nothing looks different from the living room.
Will homeowners insurance cover chimney fire damage in Colorado?
Many standard policies treat a sudden chimney fire as a covered event, while damage from long term neglect is usually excluded. Coverage depends on your specific policy, so read it, call your agent, and get a written inspection report with photos before anyone touches the chimney.
Should I have poured water on the fire?
No. Water hitting a hot firebox turns to steam instantly, which can burn you and crack the masonry through thermal shock. Get out, call 911, and let the fire department handle it. Closing the damper and glass doors is the only thing worth doing inside, and only if you can do it safely.
What does a Level 2 inspection after a chimney fire involve?
A camera is run through the full length of the flue to document cracks, gaps, displaced tiles, and warping. We also check the smoke chamber, firebox, crown, cap, and accessible attic and roof areas for heat damage, and you get a written report with images.
Do I have to reline the chimney, or can the cracked tiles be repaired?
It depends on what the camera finds. A few cracked tiles in an otherwise sound flue can sometimes be repaired in place. Displaced tiles, long cracks, or damage across many joints usually mean a stainless steel reline is the safer path. We lay out the options in the report.
Why is a chimney that already had a fire more likely to have another one?
Because the fuel and habits that built the creosote are usually still in place, and the flue may now have cracks and rough spots where new deposits collect faster. If nothing changes, the conditions that caused the first fire are still there.
Had a Chimney Fire? Get the Flue Looked At Before the Next Cold Night
If a fire has happened in your chimney, large or small, recent or suspected, the next step is a Level 2 camera inspection and a written report you can hand to your insurer. We serve Aurora, Denver, and the Front Range, and we handle the sweeping and repair that follow so you are not coordinating three companies during a stressful week.
Call us at (720) 207-9232. Tell us it was a chimney fire and we will prioritize the visit.
