Emergency Chimney Service

Emergency Chimney Service
Downtown Greenville, SC

Carbon monoxide backup, smoke rolling into the room, chimney fire sounds, blocked flue — know what you're dealing with and who to call. Serving Downtown Greenville and surrounding areas.

CO & Smoke Emergencies Chimney Fire Response Blocked Flue Diagnosis Mon–Sat Service
Call Now — (864) 794-6932
Severity Classification — What You're Dealing With

Three Levels of Chimney Emergency — What Each Requires

Not every chimney problem is an emergency. Understanding the severity helps you respond appropriately — and avoid using a fireplace that is unsafe without panicking when the situation does not actually require it.

Level 1 — Immediate

Evacuate or Stop Use Now

CO detector alarm while fireplace is in use. Active chimney fire (roaring sound, black smoke, exterior heat). Smoke rollout filling the living space. Burning smell from gas appliance without visible fire.

Stop fire. Open windows. Call 911 if symptoms present. Then call chimney tech.
Level 2 — Same Day

Stop Use — Call Today

Smoke rolling back into room (fire still manageable). Strong smoky odor in home without fire burning. Visible crack in firebox with recent use. Damper stuck closed or broken — cannot be opened.

Let fire die. Ventilate. Do not relight. Call for same-day inspection.
Level 3 — Schedule Soon

Do Not Use — Schedule Inspection

Draft is poor but fire is drawing eventually. Smell of creosote or smoke without active fire. Cap missing or damaged — rain or animals getting in. Post-storm visible exterior damage at chimney top.

Avoid use until inspected. Schedule within 1–2 weeks.
Carbon Monoxide — Understanding What Your Detector Is Telling You

CO Concentration Reference — PPM Levels and What They Mean

Carbon monoxide alarms trigger at different PPM concentrations depending on the detector model and how long exposure has been occurring. Understanding what the alarm is responding to helps you act appropriately.

CO Level (PPM) What It Means Physical Symptoms Possible Appropriate Action
1–9 PPM Normal background — from outdoor air, cooking, appliances. Most detectors do not alarm at this level. None expected No action required. Monitor if source is unknown.
10–35 PPM Slightly elevated — extended exposure at this level is unhealthy. UL standard detectors alarm after 30 days continuous at 10 PPM, or 3 hours at 35 PPM. Headache with long exposure (8+ hrs) Investigate source. Ventilate. Do not use fireplace until source is confirmed.
36–99 PPM Elevated — UL detectors alarm within 1–3 hours. This is an actionable reading indicating a definite CO source in the home. Headache, fatigue, nausea with sustained exposure Open windows. Stop all combustion appliances. Ventilate. Leave home if symptoms present. Call chimney tech before relighting.
100–199 PPM High — UL detectors alarm within 10–50 minutes. A reading of 100 PPM or above in a home is a serious condition requiring immediate action. Severe headache, dizziness, disorientation within 2–3 hours Evacuate immediately. Call 911. Do not re-enter until cleared by emergency services. Emergency chimney inspection required before any appliance use.
200+ PPM Dangerous — UL detectors alarm within 35 minutes. At this level, loss of consciousness is possible within 2–3 hours in adults. Children and pets are at greater risk at lower exposures. Severe — incapacitation possible; fatal with prolonged exposure Evacuate immediately. Call 911. Do not re-enter. Medical evaluation warranted if anyone has been inside during exposure. Full chimney inspection required.

PPM = parts per million. Alarm threshold timing varies by detector model and manufacturer. If in doubt, treat any alarm as requiring ventilation and evacuation until the source is identified.

Immediate Actions — Chimney Emergency in Progress

Stop the fire — close the glass doors or damper if accessible and safe to do so. Do not add more fuel.

Get people and pets out — CO and smoke exposure risk is highest in the immediate area of the fireplace and in lower areas of the home.

Open windows and exterior doors — ventilate the space while you exit. This dilutes CO and smoke and reduces exposure for anyone still inside.

Call 911 first if anyone has symptoms — headache, nausea, dizziness, or confusion during or after fireplace use is a medical situation, not just a chimney situation.

Do not re-enter to retrieve items — if there is active smoke rollout or a CO alarm, do not go back inside while the source is active.

Do not relight the fire — the fireplace should not be used again until a chimney technician has diagnosed and cleared the cause of the emergency.

Note what you observed — what the fire was like, how long it burned, what triggered the alarm or smoke — this information helps the technician diagnose faster.

Schedule inspection before next use — regardless of whether emergency services were called, a chimney inspection is required to identify and correct the cause.

What to Expect — Emergency Chimney Inspection Process

What Happens During an Emergency Chimney Call

An emergency chimney call is structured differently from a scheduled annual inspection — the technician is focused on identifying the immediate safety issue and determining whether the appliance can be used safely before leaving the property.

1

Initial Assessment — Problem Description

The technician asks about the presenting symptoms: what was burning, how long, what was observed, whether a CO alarm activated, and whether anyone experienced physical symptoms. This context determines the inspection priority order.

2

Flue Pathway Inspection — Open or Blocked?

The damper and flue opening are inspected for blockage. Common causes of sudden blockage include animal nests (bird nests in the flue are a frequent cause of emergency calls in spring), debris from recent storms, and collapsed mortar or liner sections that have fallen and partially or fully blocked the flue throat.

3

Chimney Top Inspection — Cap, Crown, Exterior

The technician checks the chimney cap (present, intact, open?), the crown condition, and any visible exterior damage. A missing cap combined with a prior storm can result in debris accumulation in the flue that was not present at last use. Nesting animals enter through an uncapped or damaged cap opening.

4

Firebox and Damper Assessment

The firebox, smoke shelf, and damper plate are inspected for debris accumulation, signs of previous chimney fire (glazed creosote, discolored liner sections visible from the firebox), or mechanical failure of the damper preventing full opening.

5

Post-Chimney-Fire Liner Assessment (If Applicable)

If a chimney fire is suspected, the liner condition is prioritized. Visible sections of the liner from the firebox are examined for spalling, cracking, or collapse. A camera inspection may be recommended to document full liner condition when a fire has occurred.

6

Finding Summary and Use Determination

After the emergency inspection, the technician communicates whether the chimney is safe to use, what repairs are needed before use can resume, and what the probable cause of the emergency event was. The chimney should not be used again until the identified cause has been corrected.

Common Emergency Symptoms and Probable Causes

Symptom Observed Most Likely Cause(s) Secondary Causes to Rule Out
CO alarm during fireplace use Blocked flue or partial blockage; negative air pressure (tightly sealed home drawing exhaust back down); dirty/restricted flue with heavy creosote Unrelated CO source (furnace, water heater); detector malfunction or end of life; fireplace being used with damper not fully open
Smoke rolling into room Blocked flue (nest, debris, collapsed liner section); damper not fully open; flue too cold to establish draft (cold start in winter) Flue size mismatch (too small for firebox opening); negative air pressure; wind downdraft on uncapped flue
Roaring sound from chimney Chimney fire — creosote deposits ignited inside the flue; can also include glazed creosote or third-degree deposits burning Extremely strong wind downdraft creating noise; unlikely to be confused if observed with other chimney fire signs
Sparks or embers from chimney top Active chimney fire — burning debris being expelled from the flue; damaged or missing cap not containing spark output Normal wood fire producing sparks but missing cap to contain them (less dangerous than chimney fire but still a hazard and requires cap installation)
Strong odor without active fire Heavy creosote deposits being volatilized by warm weather; animal nesting material decomposing in flue; previous chimney fire odor remaining in masonry Damaged liner allowing exhaust from other appliances to enter; sewer gas entering through ash dump
Water or debris in firebox Missing, damaged, or incorrectly sized chimney cap; storm debris; animal nest material falling from above Cracked or missing chimney crown allowing rain in; flashing failure directing water into firebox area
Common Questions — Downtown Greenville Emergency Chimney Service

Emergency Chimney Service Questions

Four situations constitute genuine chimney emergencies: (1) visible smoke rolling back into the living space — combustion gases are entering your home rather than being exhausted; (2) a CO detector alarm while the fireplace or gas appliance is in use — treat as serious and evacuate if anyone has symptoms; (3) a roaring or rumbling sound from inside the chimney with unusual exterior heat — signs of a chimney fire burning inside the flue; (4) a strong sulfur, burning plastic, or unusual chemical smell from the fireplace opening, indicating a possible liner breach. In all cases: stop the fire if safe, open windows, and call.
Treat the CO alarm as a real emergency first. Get everyone including pets out of the home, leave doors open as you exit to help ventilate, and call 911 if anyone feels dizzy, nauseous, or has a headache — these are CO poisoning symptoms. Do not re-enter until emergency services confirm CO levels are safe. Once the immediate safety situation is resolved, call a chimney technician before using the fireplace again. CO backup is caused by a blocked flue, negative air pressure drawing combustion gases back down, or liner damage. The cause must be identified and corrected.
Chimney fires produce characteristic signs different from a normal wood fire: a loud roaring, rumbling, or popping sound from the chimney; dense black or gray smoke from the chimney top rather than the lighter smoke of normal combustion; intense heat on the chimney exterior or fireplace surround unusual for the fire size; and sparks or burning embers from the chimney cap visible from outside. If you observe these signs, do not attempt to extinguish it yourself — close the damper if accessible, call 911, and evacuate. Chimney fire temperatures can reach 2,000°F or higher, enough to breach the liner and ignite adjacent wood framing.
Smoke rollout means the fireplace should not be used until the cause is found. Smoke contains carbon monoxide and other combustion byproducts harmful to breathe. The cause may be a blocked flue (animal nest, debris, collapsed liner section), negative air pressure in a tightly insulated home, a closed or stuck damper, or a flue-to-firebox size mismatch. Let the fire die down safely, ventilate the room thoroughly, and do not relight until a chimney technician has inspected and cleared the flue and identified the cause of the rollout.
An emergency call focuses on identifying the immediate cause of the presenting problem — smoke rollout, CO alarm, suspected chimney fire, or blocked flue — rather than conducting a comprehensive scheduled maintenance inspection. The technician assesses flue pathway clearance, damper function, firebox and smoke shelf condition, cap and crown, and visible liner integrity from the firebox. If a chimney fire is suspected, post-fire liner assessment is prioritized. At the end, the technician communicates whether the appliance can be safely used and what repairs are needed before use can resume.

Emergency Chimney Service — Downtown Greenville, SC

Smoke rollout, CO alarm, chimney fire, blocked flue — stop use and call. Serving Downtown Greenville and the surrounding Greenville metro.

(864) 794-6932