Thorough Chimney Sweeping With a Written Report

NFPA 211 calls for annual inspection, but cleaning frequency depends on how much you burn and what you burn. A household that runs a wood stove all winter on softwood may need sweeping twice a season. A gas fireplace used occasionally may go three years between cleanings. The inspection tells you whether the flue needs work. We check thickness and type of deposit, then recommend a cleaning interval based on what we find rather than a fixed calendar.

Not if the sweep uses proper containment. We seal the firebox opening with a canvas curtain and run a HEPA vacuum at the base of the flue while we brush from above. That negative pressure pulls particles into the vacuum instead of into the room. You may see a fine layer of dust near the fireplace, but the living space stays clean. We also lay drop cloths on floors and furniture within six feet of the hearth.

Glazed creosote is a hard, shiny, tar-like coating that forms when wood burns at low temperatures for extended periods. It bonds tightly to the flue liner and does not brush away. Removal requires chemical treatment to soften the glaze or mechanical scraping with specialized tools. Both methods take longer than a routine sweep, and the chemicals need time to work before we can scrub. That extra labor and material cost pushes the price higher than a standard cleaning.

Yes. We sweep year-round, and January is one of the busiest months because that is when problems surface. Cold weather does not prevent cleaning, though ice on the roof or a heavy snow load can delay access; if the system is actively burning, we ask that you let the firebox cool for a few hours before we start. The flue itself does not need to be warm; we just need safe working conditions on the roof and a cold firebox.

We clean both. Factory-built chimneys use metal flue pipe, and they sweep faster than masonry because the liner is smooth and uniform; the process is the same: brushes and vacuum, top to bottom, with a written report at the end. Factory-built systems still accumulate creosote, and they still need annual inspection under NFPA 211. The price is usually lower because the job takes less time, but the inspection is just as thorough.

We document the crack with photographs and include it in the written report. A cracked liner is a safety issue because combustion gases can escape into the walls or attic. Depending on the severity, we may recommend relining the flue with stainless steel or repairing the damaged section. We provide a cost estimate for the repair and explain the permit requirements. You decide whether to proceed immediately or schedule the work for later, but we do not recommend using the chimney until the crack is addressed.

A routine cleaning on a single-flue masonry chimney takes about ninety minutes to two hours. Taller flues, heavy creosote buildup, or difficult roof access add time. If we find glaze or need to remove a stubborn cap, the job can stretch to three hours. We give a time estimate when we arrive and update you if conditions change. The inspection and written report are part of that time, not a separate visit.

You do not need to stay for the entire job, but someone should be present at the start so we can access the roof and the firebox. We work mostly from outside, and the indoor portion is brief. If you need to leave during the cleaning, that is fine as long as we can lock up when finished. We will walk you through the findings and hand over the written report before we go, so plan to be available for the last fifteen minutes.