You need a chimney inspection if you’re buying a home, haven’t used your fireplace in years, or notice smoke smell, soot, or cracks. You need a chimney sweep if you’ve burned wood recently, see creosote buildup, or hear odd noises. In Denver’s dry climate, most homes should sweep annually and inspect every 2–3 years, unless your chimney’s old or you burn a lot of wood. Skip either, and you’re gambling with safety and repair costs.
A chimney inspection is a visual and diagnostic check of your chimney’s structure, liner, and venting, no sweeping included.
Think of a chimney inspection like a doctor’s checkup for your fireplace. A certified technician climbs onto your roof (or uses a camera if accessible) to look for cracks, rusted caps, damaged masonry, or gaps in the flue. They’ll also check for signs of past chimney fires, animal nests, or corrosion in the liner. In Denver, where older brick homes with clay liners are common, inspections catch problems before they turn into $3,000+ repairs, like a collapsed flue or water-damaged masonry. The Chimney Safety Institute of America (CSIA) recommends an inspection before your first fire of the season, and annually if you burn wood regularly. If your home is in a high-wind area like near Lookout Mountain or has a masonry chimney older than 30 years, you’re at higher risk for hidden damage. Inspections are part of our standard service, we’ll tell you flat-out what’s wrong and what needs fixing, no upselling.
A chimney sweep removes creosote, soot, and debris from the flue, it’s the cleaning, not the diagnosis.
Creosote is the black, tarry buildup left behind when wood burns. In Denver’s dry air, it dries into hard, flammable layers that can ignite with just a spark, that’s how chimney fires start. A sweep uses brushes, rods, and vacuums to clear the flue, but it doesn’t fix structural issues like cracks or rust. If your chimney’s been used this winter, you need a sweep before spring. If it’s been dormant, you might get away with skipping it, but only if you’ve had a recent inspection proving it’s clean. Prices for a sweep in Denver run $120–$250, depending on chimney height and access. A gas fireplace sweep (if you have one) is cheaper ($80–$150) but still critical, rusted heat exchangers from blocked vents cause carbon monoxide leaks. Pro tip: Book your sweep before the holidays, we’re booked solid in November.
Should I get both? Yes, unless you’re in a new home with a stainless-steel liner and burn only seasoned wood.
Here’s the hard truth: Most Denver homeowners need both. If you’ve ever burned wood in your fireplace, creosote has built up, even if you can’t see it. An inspection finds hidden problems (like a cracked liner or mortar joints crumbling from freeze-thaw cycles), while a sweep removes the fire hazard. The National Fire Protection Association (NFPA 211) says you should sweep at least once a year if you burn wood, and inspect annually if your chimney’s over 10 years old. In older neighborhoods like Capitol Hill or Five Points, where homes have original brick chimneys, inspections are non-negotiable, those liners degrade faster. We offer combo packages for inspections + sweeps to save you time and money. And if your chimney’s never been inspected? Stop burning wood until we check it. That’s not fearmongering, that’s how you avoid a $10,000 house fire.
What’s the difference in cost? Inspections are cheaper, but skipping one costs more in the long run.
Prices vary by chimney type and access, but here’s what you’re looking at in Denver: - Basic inspection (visual only): $75–$150 - Level 2 inspection (camera + visual): $120–$200 (needed for older homes or before buying) - Chimney sweep (wood-burning): $120–$250 (taller chimneys cost more) - Gas fireplace sweep: $80–$150 - Masonry repair (if inspection finds damage): $500–$3,000+ The upfront cost of an inspection is a drop in the bucket compared to fixing a chimney fire or carbon monoxide poisoning. Need a free estimate? We’ll tell you exactly what’s wrong and how much to fix it. And if you’re in a high-altitude area like Evergreen or Golden, where wood burns hotter and faster, you’re looking at more frequent sweeps, and higher creosote buildup.
Is it worth paying for an inspection if I’ve never had a chimney fire?
Absolutely. Denver’s climate, dry summers, freezing winters, and high winds, puts extra stress on chimneys. Even if you’ve never had an issue, water damage, animal nests, or cracked flues can go unnoticed until it’s too late. For example, a squirrel nest in your flue (common in Cherry Creek or Washington Park neighborhoods) can block airflow and send carbon monoxide into your home. Or a small crack in the liner might let sparks escape onto your roof. The CSIA says 9 out of 10 chimney fires start with undetected buildup or damage. Our inspectors use FLIR cameras to spot hidden heat spots, something DIY tools can’t do. If you’re selling your home, a Level 2 inspection is required by most lenders, and it’s cheaper than failing a sale over a hidden chimney issue.
Can I DIY a chimney sweep? No, and here’s why Denver’s dry air makes it dangerous.
YouTube makes DIY chimney sweeping look easy: grab a brush, drop it down the flue, and call it a day. Don’t. First, creosote in Denver chimneys isn’t just powdery dust, it’s hard, tar-like layers that can clog your brush mid-sweep, leaving you with a flue full of debris. Second, stirring up creosote can create a dust explosion that ignites instantly. Third, falling into a flue happens, especially in older homes with loose bricks or missing caps. The EPA’s Burn Wise program warns that improper sweeping is a leading cause of chimney fires. We’ve pulled people out of flues with our vacuum hoses, it’s not a joke. If you’re set on DIY, at least rent a professional-grade vacuum and wear a respirator, but even then, you’re missing the inspection step. Need a pro? We serve Arvada, Lakewood, and Wheat Ridge, book before the lines get long.
What’s the fastest way to tell if my chimney needs a sweep or inspection?
Check for these Denver-specific red flags before calling: 1. Smoke smell when the fireplace is off → Likely creosote buildup (needs a sweep). 2. Orange sparks or glowing embers in the firebox → Creosote fire (emergency sweep now). 3. White smoke or strong odor when lighting the fire → Blocked flue or animal nest (inspection first). 4. Cracks in the masonry or missing bricks → Water damage or structural issue (inspection + repair). 5. Soot on the ceiling or walls → Poor draft or dirty flue (sweep + inspection). If your chimney’s older than 20 years or you burn pine, oak, or unseasoned wood, assume it needs both. Download our Denver Chimney Checklist for step-by-step visual cues. And if you’re unsure? Call us. We’ll climb on your roof, check it out, and give you a straight answer, no upselling.
| Task | When to Do It | Cost Range | Denver-Specific Notes |
|---|---|---|---|
| Chimney Inspection (Level 1) | Before first fire of the season, after buying a home, or if you notice smoke/soot issues | $75–$150 | Older brick homes (pre-1980s) need annual inspections, clay liners degrade faster in Denver’s dry air. |
| Chimney Inspection (Level 2) | Before selling, if you burn >5 cords/year, or if Level 1 finds potential issues | $120–$200 | Required for mortgage approvals in Denver. Catches hidden cracks or rust in stainless-steel liners. |
| Chimney Sweep (Wood) | After every 4–7 cords burned, or at least once a year if you use the fireplace | $120–$250 | Pine/oak wood = more creosote, sweep more often if you burn these. Tall chimneys (30+ ft) cost extra. |
| Gas Fireplace Sweep | Annually, or if you smell gas or see soot | $80–$150 | Rust in heat exchangers is common in older Denver homes, a sweep prevents CO leaks. |
| Masonry Repair | After inspection finds cracks, water damage, or missing mortar | $500–$3,000+ | Freeze-thaw cycles in mountain-adjacent areas (Golden, Evergreen) accelerate damage. |
Frequently Asked Questions
Should I wait until winter to get my chimney inspected or swept?
No, get it done in September or October. Denver’s first cold snap hits fast, and if your chimney’s not ready, you’ll be burning wood in a dirty, uninspected flue. The Chimney Safety Institute of America recommends inspecting before your first fire, and sweeping after the last fire of the season (spring) to catch any missed buildup. Pro tip: Book now, we’re booked through November.
Should I skip the Level 2 inspection if I’m not listing my Capitol Hill home?
Yes, if your chimney’s older than 15 years or you burn more than 5 cords of wood a year. A Level 2 inspection uses a camera to check the flue for cracks, rust, or blockages, things a visual inspection misses. In Denver’s dry climate, clay liners degrade faster, and a hidden crack can turn into a $2,000 repair. We offer Level 2 inspections for $150, it’s a small price for peace of mind.
Do I need a chimney sweep if I only light my fireplace a handful of times in a year?
Yes, even light use builds creosote. The NFPA says any wood-burning chimney needs a sweep at least once a year, regardless of usage. In Denver, where homes sit empty during summer, creosote dries into hard layers that are more flammable than fresh buildup. Skip the sweep, and you’re risking a chimney fire, especially in older homes with original brick.
Can I fire up the hearth after a sweep but before the inspection?
Technically yes, but only if you’ve burned wood recently and there’s no visible soot or smoke issues. If your chimney’s been dormant (no fires in months), don’t light it until after an inspection, hidden damage could let carbon monoxide into your home. We see this mistake all the time in Highlands Ranch and Castle Rock, homeowners sweep but skip the inspection, then call us after a CO scare.