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Do it yourself — and don’tDIY chimney care: what to do yourself, what to leave to a pro
Plenty of chimney care is safe, simple homeowner work — and some of it genuinely isn’t. Here’s an honest line between the two, from a crew that would rather you stay safe than sell you a service you don’t need.
The short version: you can safely handle fuel, housekeeping, alarms, and visual checks from the ground. Leave anything that involves the roof, the inside of the flue, gas, or structural masonry to a professional — those carry real fall, fire, and carbon-monoxide risk. Here’s the breakdown.
Safe to do yourself
- Burn the right wood. Use only seasoned wood — split and dried six months to a year, under about 20% moisture. Dry wood burns hotter and leaves far less creosote. A cheap moisture meter takes the guesswork out.
- Build smarter fires. Don’t overload the firebox, never burn trash, cardboard, or treated wood, and open the damper fully before lighting. The top-down fire-building method produces less smoke.
- Handle ashes safely. Let ashes cool completely, then store them in a metal container with a lid, away from the house — ashes can hold live embers for days.
- Test your alarms. Test smoke and carbon-monoxide alarms before burning season and replace batteries. Put a CO alarm on every level of the home.
- Do ground-level visual checks. From the yard, look for a missing or rusted cap, visible cracks in the crown, and crumbling or stained brick. Inside, watch for stains and a tarry smell.
- Keep the hearth clear. Keep rugs, furniture, and anything flammable well back from the firebox opening.
Leave this to a professional
- Sweeping the flue. A proper sweep needs the right brushes, a HEPA vacuum, and knowledge of where creosote hides. A “chimney cleaning log” is not a substitute — at best it loosens some soot and gives false confidence.
- Anything on the roof. Caps, crowns, flashing, and masonry mean working at height on a pitched roof. Falls are a leading home-maintenance injury — this is a pro job with the right gear.
- Inspecting the flue interior. Judging liner condition takes a camera and experience. A cracked liner is a safety issue you can’t see from the firebox. That’s what an inspection is for.
- Masonry repair. Tuckpointing, crown rebuilds, and waterproofing need the right materials and technique, or they trap water and make things worse. See chimney repair.
- Anything involving gas. Gas lines, valves, and connections are not DIY. If you smell gas, leave and call the utility. For service, call a pro.
The honest rule of thumb: if it’s at ground level and reversible, it’s probably fine to do yourself. If it’s on the roof, inside the flue, structural, or involves gas, the risk isn’t worth it — and a yearly professional visit costs far less than fixing what goes wrong.
Do chimney-sweeping logs actually work?
Not as a replacement for a real sweep. Creosote-sweeping logs can make some buildup more brittle, but they don’t remove it from the flue, don’t touch heavy glaze, and give no view of the chimney’s condition. Treat them as a minor supplement at most, never a substitute for an annual sweep and inspection.
Can I clean my own chimney from the roof?
We don’t recommend it. It means working at height on a pitched roof with brushes sized to your flue and no way to see the result or judge liner condition. The fall risk alone outweighs the savings, and a missed problem can be dangerous. This is the part to hand to a pro.
How do I know my firewood is dry enough?
Dry, seasoned wood is lighter, has cracks at the ends, and sounds hollow when two pieces are knocked together. A moisture meter is the sure way — aim for under about 20%. Wet or green wood smolders, heats poorly, and produces much more creosote.
What’s the one DIY step that matters most?
Burning only dry, seasoned wood. More than anything else you can do yourself, it cuts the creosote that causes chimney fires. Pair that with booking a yearly professional inspection, and you’ve covered the large majority of the risk.
Leave the risky part to us
Call United Chimney Sweepers for the roof, flue, and gas work — open seven days a week, 7:00 AM to 9:30 PM.
Call (630) 604-3104Bonded & insured • We work to the NFPA 211 standard