A chimney inspection in Aurora isn’t just a formality, it’s a fire safety check. A certified sweep will probe for creosote buildup (especially critical after a dry summer like 2023), check for cracks in masonry or liners, and test draft flow. If you’ve noticed slow burns, smoke backing into your home, or soot on the fireplace floor, that’s your cue to call a pro before winter. The Chimney Safety Institute of America recommends annual inspections for homes using fireplaces regularly, and Aurora’s older neighborhoods like Original Aurora and Hampden South see more issues due to aging chimneys. Don’t wait until you smell gas or see flames in the flue, book it now before small problems turn into costly repairs.
What a chimney inspection actually looks for (and why it matters in Aurora)
A chimney inspection is a thorough check of your flue, liner, and masonry to spot hidden dangers before they cause a fire or carbon monoxide leak. In Aurora, where many homes have brick or masonry chimneys (especially in Original Aurora and Hampden South), moisture from snowmelt and temperature swings can crack mortar over time. A pro will: - Inspect the flue for creosote: This tar-like buildup is the #1 cause of chimney fires in Colorado. After a dry summer like 2023, creosote dries out and becomes highly flammable. If it’s black, glossy, or tar-like, it’s Stage 2 or 3, time for a sweep. - Check the liner: If your chimney has a clay or metal liner (common in homes built after the 1980s), cracks or rust mean toxic gases could leak into your home. Aurora’s humidity spikes in summer can accelerate rust in metal liners. - Test draft flow: A weak draft means smoke won’t vent properly, forcing it into your home. This is common in taller Aurora homes where the chimney may not have enough draw. - Examine masonry: Look for spalling (flaking bricks), missing mortar, or cracks wider than 3/16”. These let in moisture, which freezes and thaws in Aurora’s winters, weakening the structure. - Scan for animal nests: Birds, squirrels, and even raccoons love Aurora chimneys. A nest blocks airflow and creates fire hazards. We’ve pulled out nests from flues in Beacon Point and Twin Lakes that homeowners didn’t even know were there.
What you can’t see: A pro uses a camera to inspect the flue from top to bottom. If you’ve ever seen soot on your fireplace floor but assumed it was normal, that’s a red flag. Soot on the floor means incomplete combustion, likely due to poor airflow or a dirty flue. Learn how to spot these signs before they become emergencies.
Aurora’s climate and housing: why your chimney behaves differently than in other towns
Aurora’s dry summers and cold winters create unique chimney challenges. Unlike Denver’s lower elevation, Aurora’s higher areas (like Sable Ridge) see faster temperature swings, which stress masonry. Here’s what that means for your chimney: - Creosote builds up faster in dry conditions: The EPA’s Burn Wise program notes that dry wood burns hotter, producing more creosote. If you’ve been burning pine or oak (common in Aurora firewood piles), expect heavier buildup. - Moisture damage from snowmelt: Aurora’s winters bring snow, and when it melts, it seeps into cracks in your chimney crown (the top cap). Over time, this weakens mortar. We’ve seen crowns crumble in Original Aurora homes after just one winter if they weren’t sealed. - Older homes need more attention: Many Aurora homes near Cherry Creek State Park were built in the 1950s–70s, with unlined masonry chimneys. These are prone to spalling (bricks flaking off) due to freeze-thaw cycles. If your home was built before 1980, schedule an inspection before winter shuts down access. - Gas fireplaces have different risks: If you have a gas fireplace (common in newer Aurora developments like Eastridge), the inspection focuses on carbon monoxide leaks and vent blockages. A blocked vent can push CO into your home, something you won’t smell until it’s too late.
Pro tip: If your chimney hasn’t been inspected since before 2020, it’s past due. The NFPA says a quarter of home heating fires trace back to chimneys, often from creosote that goes unnoticed until it’s too late. Here’s how to prep your chimney for Aurora’s seasonal shifts.
The 3 types of chimney inspections, and which one your Aurora home needs
Not all inspections are equal. Here’s what each level checks for, and which one fits your Aurora home: 1. Level 1 (Basic Visual Inspection): $75–$125. The sweep looks at the fireplace and chimney components you can see (firebox, damper, chimney cap). Best for homes with no visible issues and a clean sweep history. If your last sweep was less than a year ago and you’ve burned only seasoned wood, this might suffice, but don’t skip the camera check if you’ve noticed slow burns. 2. Level 2 (Full Inspection): $150–$250. Includes a camera scan of the flue and checks for hidden damage. Required after a chimney fire, if you’ve had repairs, or if you’re buying/selling a home. In Aurora, this is the gold standard, especially for older homes where hidden cracks or rusted liners are common. 3. Level 3 (Full Destructive Inspection): $300–$600+. Rarely needed, but required if there’s evidence of a chimney fire (e.g., melted flue tiles). This involves removing parts of the chimney to assess damage. If your chimney smells like burning plastic or you’ve seen flames in the flue, this is your next step.
Aurora-specific note: If your home is in a floodplain (like parts of Southlands), moisture damage is more likely. A Level 2 inspection will catch water intrusion before it causes major structural issues. See our pricing guide for Aurora’s inspection costs.
Warning signs you need an inspection NOW (Aurora homeowners ignore these)
You don’t need to wait for a formal inspection if you see these red flags in your Aurora home: - Smoke lingering in the room: If smoke doesn’t rise straight up the chimney, your flue is blocked or your draft is weak. This is common in taller Aurora homes where the chimney may not have enough draw. - Strong odor of gas or smoke when the fireplace is off: Means CO or creosote fumes are leaking. Never ignore this, it’s a fire hazard. - Excessive soot on the fireplace floor or walls: More than a thin layer means incomplete combustion, often due to a dirty flue or poor airflow. In Aurora’s dry climate, this happens faster if you’re burning unseasoned wood. - Cracks in the masonry or missing mortar: Check the chimney crown (top) and brickwork. If you see cracks wider than 3/16”, moisture will seep in and freeze, causing spalling. - Creatures clogging your flue: Mice, birds, or raccoons can jam up the pipe and cut off airflow. We’ve pulled nests from chimneys in Twin Lakes that homeowners thought were just “dirt.” - Condensation or rust inside the flue: If your chimney has a metal liner, rust means it’s failing. Aurora’s humidity spikes in summer accelerate this.
What to do next: If you see any of these, call a pro immediately. A blocked flue or cracked liner can turn deadly in hours. Here’s how to tell if your chimney needs a sweep vs. a repair.
How long does an inspection take? (And what to expect when we arrive)
A chimney inspection in Aurora typically takes 30–90 minutes, depending on the type. Here’s what happens: 1. Arrival: We’ll ask about your fireplace use, wood type, and any issues you’ve noticed. This helps us spot problems faster. 2. Visual check: We inspect the fireplace, damper, and chimney cap for obvious damage. 3. Camera scan: For Level 2 inspections, we insert a flexible camera into the flue to check for creosote, cracks, or blockages. This takes 10–20 minutes. 4. Draft test: We check airflow with a smoke puff test (a small puff of smoke to see how it vents). 5. Report: You’ll get a written report with photos and recommendations. If we find issues, we’ll explain the risks and next steps, no upselling.
Aurora-specific tip: If your chimney is tall (common in Original Aurora homes), the inspection may take longer due to ladder setup. We’ll also check for bird nests, which are more common in older neighborhoods. Need a sweep after the inspection? Book one here.
What to do if the inspection finds problems (your next steps)
If your inspection reveals issues, here’s what to prioritize, and how Aurora’s climate affects repairs: - Creosote buildup (Stage 2 or 3): Needs a sweep immediately. In Aurora’s dry summers, creosote dries out and becomes highly flammable. A sweep costs $120–$250, but skipping it could lead to a $5,000+ chimney fire repair. - Cracked liner: If the liner is damaged, it must be relined or replaced. Metal liners rust faster in Aurora’s humidity, while clay liners crack from freeze-thaw cycles. Relining costs $1,500–$3,500. - Spalling bricks or missing mortar: These need repointing (filling cracks with mortar). In Aurora’s freeze-thaw cycles, this prevents further damage. Cost: $300–$800. - Blocked flue: Animal nests or debris must be removed. We’ve cleared nests from chimneys in Beacon Point that homeowners didn’t know were there. - Poor draft: If airflow is weak, we’ll check for obstructions or recommend a chimney cap to improve draw.
Don’t wait: If the inspection finds a critical issue, schedule repairs before winter. Aurora’s cold snaps make chimney fires more likely when systems are stressed. See our repair vs. replace guide for Aurora homes.
| Inspection Type | What’s Included | Typical Cost | When to Use |
|---|---|---|---|
| Level 1 (Basic) | Visual check of fireplace and chimney cap | $75–$125 | If your chimney is new or has no issues |
| Level 2 (Full) | Camera scan of flue + draft test | $150–$250 | Annual check for homes using fireplaces regularly |
| Level 3 (Destructive) | Full tear-down for fire damage | $300–$600+ | Only after a chimney fire |
| Emergency Inspection | Same-day check for smoke/CO issues | $200–$350 | If you smell gas or see flames in the flue |
Frequently Asked Questions
My chimney smells like burning plastic when I light the fire. What does that mean?
That’s a sign of a failing chimney liner, likely rusted metal or melted plastic in older Aurora homes. If your chimney was built before 1980, it may have an unlined masonry flue, which can’t handle modern wood-burning efficiency. The plastic smell means toxic gases are leaking into your home. Call a pro immediately, this is a fire and health hazard. Here’s how to tell if your liner needs replacing.
I’ve heard Aurora’s dry climate makes creosote worse. How much worse?
Aurora’s dry summers turn creosote into a fire hazard faster than in wetter areas. The Chimney Safety Institute of America notes that dry wood burns hotter, producing more Stage 2 (glossy) or Stage 3 (tar-like) creosote. In Aurora, we see Stage 3 buildup in as little as 3–4 burns if you’re using unseasoned wood. Solution: Burn only seasoned hardwood (oak, maple) and sweep at least twice a year, once before winter and once after. Learn how to season wood properly for Aurora’s climate.
My chimney has a metal liner, but it’s rusting. Is that normal in Aurora’s humidity?
No, it’s not normal, and Aurora’s summer humidity accelerates rust in metal liners. If your liner is rusted, it’s failing and could leak carbon monoxide. Metal liners in Aurora should last 15–20 years, but high humidity shortens that lifespan. Fix it now: A new liner costs $1,500–$3,500, but ignoring it risks a chimney fire or CO poisoning. See our guide on liner types for Aurora homes.
I found a crack in my chimney crown (the top). Should I seal it myself or call a pro?
Seal it yourself only if it’s a hairline crack. If it’s wider than 3/16”, call a pro. Aurora’s freeze-thaw cycles will worsen the crack, leading to spalling bricks. DIY fix: Use a high-temperature sealant like Chim-Seal. Pro fix: Repointing (filling cracks with mortar) costs $300–$800 but prevents water damage. Here’s how to check for hidden cracks in your Aurora chimney.