A chimney sweep costs $150 to $375 in 2026, and most homeowners pay about $250 for a cleaning with a basic inspection. A gas fireplace flue is cheaper to service, usually $80 to $150. Heavy creosote, extra flues, or a steep roof push the price up, and so does calling in October when everyone else calls too.
- Standard sweep with Level 1 inspection: $150 to $375
- Gas fireplace flue service: $80 to $250
- Sweep plus Level 2 camera inspection: $250 to $500
- Cheapest time to book: spring or early summer, before the fall rush
What is the average price to sweep a chimney?
Between $254 and $400, depending on whose numbers you read. We pulled the three big national cost guides on July 10, 2026, and lined them up:
| Source (2026 guide) | Average | Typical range |
|---|---|---|
| Angi | $254 | $129 to $381 |
| HomeGuide | $275 | $150 to $375 |
| Fixr | $400 | $100 to $500 |
Fixr’s average runs high because it folds in bigger jobs, like neglected wood-burning fireplaces that can hit $1,000. For a chimney that gets serviced on schedule, plan around $250.
Local prices agree. A Pennsylvania hearth dealer we checked posts $150 to $250 for a standard Level 1 cleaning and $250 to $500 for a cleaning with a full camera inspection.
Price by fireplace type
| Chimney or flue type | 2026 cleaning cost |
|---|---|
| Gas fireplace flue | $80 to $250 |
| Prefabricated chimney | $90 to $175 |
| Wood or pellet stove | $130 to $350 |
| Masonry chimney, wood-burning fireplace | $150 to $375 |
Gas flues cost the least because gas burns clean and leaves no creosote. The sweep is checking for corrosion, blockages, and venting problems, not scrubbing out buildup.
What makes a chimney sweep cost more?
Five things push the bill past the averages:
- Glazed creosote. Stage 3 creosote is a hard, shiny tar layer that a brush will not touch. Removing it takes chemical treatment or rotary tools, and the extra hours show up on the invoice.
- Extra flues. Each flue is its own cleaning. A chimney serving a fireplace and a furnace costs more than a single-flue stack.
- Height and roof pitch. A tall chimney on a steep roof means more setup time and sometimes staging.
- Blockages. Bird nests, leaves, and the occasional dead squirrel all cost extra to pull out.
- Camera inspection. Some companies bundle it, others add $50 to $75.
One price signal should make you suspicious instead of happy: the $59 coupon. Deep-discount sweeps have a habit of discovering expensive emergencies in your flue. Book a CSIA-certified sweep and pay the real rate. If a visit does turn up genuine damage, our chimney repair cost guide shows what crown, flashing, and brick fixes should cost, so you can tell a fair quote from a padded one.
How often should a chimney be swept?
Inspect once a year, clean whenever buildup reaches 1/8 inch. The yearly inspection comes from NFPA 211, the fire-safety standard chimney pros work to, and the 1/8 inch cleaning trigger is the Chimney Safety Institute of America’s line.
If you burn four or more nights a week all winter, expect to clean every year. A few fires a season, and the cleaning can stretch to every two or three years. Keep the yearly inspection either way. Animal nests, water damage, and crown cracks do not care how often you burn.
What time of year is best to clean a chimney?
Spring or early summer. Schedules are wide open, some companies charge less in the off-season, and a spring cleaning clears out the soot that makes a house smell like a campfire in humid August weather.
October is the worst month to call. That first cold weekend sends everyone to the phone at once, and the good appointment slots disappear weeks out. Every fall, fireplace forums fill with people asking why no sweep can come before Thanksgiving.
How long does a chimney sweep take?
About an hour for a standard cleaning with a Level 1 inspection. Add a camera inspection and you are looking at one to two hours. Blockage removal or glaze treatment runs longer, and the sweep should tell you before starting, not after.
Can I sweep my own chimney?
You can. A rod-and-brush kit costs less than a single professional visit, and working bottom-up from the firebox keeps you off the roof. Heavy burners sometimes run a brush through mid-season and it genuinely helps.
What you cannot do yourself is the inspection. You do not have a flue camera, and you do not know what a failing liner, a cracked crown, or bad flashing looks like from the inside. DIY brushing between professional visits: sensible. DIY instead of professional visits: how quiet liner damage goes unnoticed until the worst possible moment.
Do creosote sweeping logs really work?
They help a little and replace nothing. The additives in the log loosen early-stage creosote so more of it flakes off or brushes out at the next cleaning. They do nothing about a blocked flue, a cracked liner, or glazed stage 3 buildup, and they inspect nothing. Use them as a supplement between sweeps, never instead of one.
What happens if you don’t sweep your chimney?
The CSIA estimates about 25,000 chimney fires a year in the US, causing over $125 million in property damage. The fuel in nearly all of them is creosote, which can ignite once flue temperatures pass 451°F.
The scary part is that many chimney fires are slow and quiet. They crack the liner and damage the flue without anyone in the house noticing, and the damage waits there for a later fire to find it. A cracked liner usually means relining, and our chimney liner cost guide breaks down what that job runs. Against that, $250 a year is cheap.
How we checked these prices
FireplaceIQ does not sell chimney services, so we have no reason to scare you into a booking. The numbers on this page come from the published 2026 price guides at Angi, HomeGuide, and Fixr, pulled on July 10, 2026, and cross-checked against a hearth dealer’s posted service menu. Where the sources disagreed, we said so instead of averaging the disagreement away. We recheck these figures in September, before the heating season starts.
The chimney bills do not stop at sweeping. The Chimney and Venting hub covers liners, caps, and repairs, and the Fireplace Costs hub collects every price guide on the site.
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Chimney sweep cost FAQ
What are the signs of a dirty chimney?
A smoke smell in summer, black flakes dropping into the firebox, smoke drifting into the room when you light a fire, and any oily black buildup you can see inside the flue. An eighth of an inch of creosote means it is time to clean.
How long can a chimney go without cleaning?
If you only burn a few fires a season, two to three years between cleanings can be fine. The yearly inspection is the part you never skip, because it is what tells you whether that stretch is actually safe for your chimney.
Do chimney sweeps have to go on the roof?
Not always. Many sweeps work bottom-up from the firebox with rotary rods and a vacuum. Roof access is still needed to properly check the cap, crown, and flashing.
Does a gas fireplace chimney need cleaning?
Yes, once a year, but it is a lighter job. Gas leaves no creosote, so the service is about corrosion, blockages, and venting. Expect $80 to $250 in 2026.
Is a Level 2 chimney inspection worth it?
When you are buying a home, or after any chimney fire or chimney-rattling event, yes. It adds a camera scan of the flue interior and runs about $260 to $460 on its own in 2026.