There is real chimney maintenance you can do yourself, and there is chimney work that will get you hurt or leave you with a false sense of safety. This guide is an honest split between the two — written by a company that would financially prefer you called us, which is exactly why it is worth reading. Questions: (708) 432-3430.
Do this yourself: burn the right wood
This is the single highest-impact thing a homeowner controls, and it costs nothing. Creosote is unburned fuel condensing on a cool flue wall, and wet wood is the fastest way to make it. Green or unseasoned wood spends the fire’s energy boiling off water instead of burning cleanly, so the smoke is cooler, dirtier and far more likely to condense into creosote.
- Season wood for at least six to twelve months, split and stacked off the ground with the top covered and the sides open to the air.
- Target under 20% moisture. A moisture meter costs very little and takes the guesswork out entirely.
- Listen and look. Seasoned wood is lighter than it looks, has cracks radiating from the end grain, and knocks with a hollow sound. Wet wood is heavy, hisses, and bubbles at the cut ends.
- Burn hardwoods — oak, ash, hickory, maple — rather than softwoods, and never burn treated timber, pallets, painted wood or cardboard.
Do this yourself: burn the fire hot, not slow
Damping a fire right down to make it last overnight feels efficient and is the classic creosote factory. A smouldering fire is a cool, smoky, incomplete burn, and every bit of that smoke is looking for a cold surface to condense on. Build smaller, hotter fires with good air. If you regularly shut the air down to a crawl, assume you are laying creosote fast.
Do this yourself: the monthly look
- Check the damper opens and closes fully and is not rusted stiff. A rusted damper means water is getting in — you probably need a cap.
- Look for a scratch test. With the fire cold, scratch the flue wall just above the damper. Powdery soot is normal. If you are scraping off a layer about the thickness of a pencil lead, it needs sweeping.
- Look up with a torch. You are not inspecting the flue, you are checking for daylight (good, if it is the top) and for debris, twigs or nesting material (bad).
- Go outside and look at the stack. Missing cap? Crumbling mortar? Brick faces flaking off? White chalky staining? All worth a photograph and a call.
- Test your carbon monoxide alarms. Every level of the house. This is non-negotiable with any fuel-burning appliance.
Do this yourself: clear the transition hose behind the dryer
Pull the dryer out, disconnect the hose, and clear the lint from the hose and the first stretch of duct. If the hose is crushed flexible foil, replace it with rigid or semi-rigid metal duct — foil hoses kink, crush and trap lint, and they are frequently the whole cause of a restricted vent. What you generally cannot do yourself is clean a long duct run or a roof termination, or verify afterwards that the restriction is actually gone. That is dryer vent cleaning.
Do NOT do this yourself: get on the roof
This is the one we would ask you to take seriously. Every year people fall off roofs doing chimney work, and a chimney sits at the highest and most awkward point of the structure. Roof work involves being on a pitched surface, at height, leaning over a stack, usually handling tools. There is no chimney maintenance task worth a fall from a roof. Caps, crowns, flashing and anything above the roofline — leave it.
Do NOT do this yourself: rely on a brush kit as an inspection
You can buy rods and a brush and remove some soot. What you cannot do is see what matters. The things that make a chimney genuinely dangerous are structural and invisible from the firebox: a cracked flue tile, a gap where the liner has separated, a deteriorated crown letting water into the core. None of that is visible with a brush and a torch from the bottom, and a chimney that has been brushed but never inspected feels safe while being exactly as unsafe as it was. If you want to know the condition, that requires a camera: see chimney inspection.
Do NOT do this yourself: creosote logs as a substitute for sweeping
Chemical creosote-removing logs do something — they can help dry and loosen stage-three glaze so it is easier to remove mechanically. What they do not do is remove the deposits from your chimney. The creosote is still in the flue; some of it is now flaking down onto the smoke shelf. They are a supplement to sweeping and marketed as a replacement for it. Using one and skipping the sweep is worse than doing nothing, because you now believe the chimney is clean.
Do NOT do this yourself: burn a hot fire “to burn the creosote out”
This is folk advice that describes, precisely, how to start a chimney fire. Burning off creosote deliberately is what a chimney fire is. Do not do it.
The short version
Burn dry wood, burn it hot, keep an eye on the damper and the stack, keep the dryer hose clear, and test your CO alarms. Everything above the roofline and everything inside the flue needs eyes and equipment you do not have. That is not a sales pitch — it is the same line we would draw for our own families.
Frequently asked questions
Can I sweep my own chimney?
You can remove some soot with a brush and rod kit, and that is not worthless. But you cannot inspect what you cannot see, and the dangerous defects in a chimney are structural and invisible from the firebox — cracked flue tiles, a separated liner, a failing crown. A brushed but uninspected chimney feels safe without being safe.
Do creosote-removing logs actually work?
Partially, and not as a replacement for sweeping. They can dry and loosen hardened glaze so it is easier to remove mechanically. They do not remove deposits from the flue — the creosote is still there. Using one instead of a sweep leaves you with a dirty chimney and a false sense of security.
How can I tell if my wood is dry enough to burn?
Seasoned wood is noticeably lighter than it looks, shows cracks radiating from the end grain, and makes a hollow knock. Wet wood is heavy, hisses in the fire and bubbles at the cut ends. A cheap moisture meter removes the guesswork — you want under 20%.
Is it safe to get on the roof to check my chimney?
No, and this is the one thing in this guide we would ask you not to do. Falls from roofs cause serious injuries every year, and there is no chimney maintenance task that justifies the risk. Anything above the roofline — cap, crown, flashing — should be left to someone with the equipment to be up there safely.
How do I know if I have too much creosote?
With the fire cold, scratch the flue wall above the damper. A light powdery soot is normal. If you are scraping off a layer roughly the thickness of a pencil lead — about an eighth of an inch — that is the industry trigger for cleaning.
Will burning a very hot fire clean my chimney?
No. Burning a hot fire deliberately to “burn out” creosote is a description of how a chimney fire starts. Do not do it. Hot, clean fires from dry wood prevent creosote forming; they do not remove creosote that already exists.
What can I safely do about my dryer vent myself?
Pull the dryer out, disconnect the transition hose, and clear the lint from the hose and the first stretch of duct. If the hose is crushed foil, replace it with rigid metal duct. What you generally cannot do is clean the full run or a roof termination, or confirm the restriction is gone afterwards.
How often should I look at my chimney myself?
A quick monthly check during the burning season is plenty: damper moves freely, no debris in the flue, no obvious damage to the stack outside, and CO alarms working. That is enough to catch most problems early — the annual inspection catches the rest.
Book a chimney sweep or inspection in Orland Park
We cover Orland Park, Tinley Park, Palos Heights, Homer Glen, Mokena and the rest of the Southwest Suburbs, seven days a week from 7:00am to 7:00pm. Call (708) 432-3430 or book online and we will call you back to confirm. The price is agreed before any work begins — see pricing.