Every year, the first genuinely cold night generates the same three calls: it smokes, it will not light, and there is something living in it. All three are preventable in an afternoon.
Do this yourself
Check the damper
Open and close it fully. It should move freely and seal when closed. If it is stiff, rusted or will not seat, that is rainwater coming down the flue — you need a cap, and possibly a damper replacement.
Look up with a flashlight
Past the damper. You are looking for buildup thicker than an eighth of an inch, anything shiny and tar-like, daylight where there should not be daylight, and nesting material.
Check the firebox
Cracks in the firebrick wider than about an eighth of an inch, or missing mortar joints, need repair before the season. The firebox is the last barrier between the fire and your framing.
Sort out your wood
Seasoned means split and stacked six to twelve months, under 20% moisture, checked with a meter rather than by feel. Look for cracks radiating from the end grain and a hollow knock when two pieces are struck together. Green wood is the single largest cause of creosote — and the wood delivered as "seasoned" in October frequently is not.
Test your alarms
Smoke and carbon monoxide detectors, tested, with fresh batteries. CO is the failure mode that gives no warning at all.
Call us for this part
- Annual sweep and inspection — the whole point of the checklist
- Gas fireplace service if you burn gas — no soot does not mean no maintenance
- Nest removal if you heard anything up there over the summer
- Leak repair before the freeze-thaw cycle starts, not after
- Dryer vent cleaning while we are already there
Why the Hudson Valley is hard on chimneys
Our winters cycle above and below freezing constantly — that is worse for masonry than a steady deep freeze. Every cycle, absorbed water expands roughly nine percent and pushes the brick apart a little more. A chimney in a consistently cold climate can outlast one here.
That is why sealing, capping and crown work matter more in Monsey, New City and Mahwah than the national averages suggest.
The scheduling reality
Everyone calls the week the weather turns. Book your sweep in spring or summer and you will get the date you want, from a technician who is not on his eleventh roof of the day.
Want us to take a look?
Free estimates across all 97 towns we serve. We will tell you honestly if nothing needs doing.
