Chimney Inspection in Westlake Village, CA

What happens during a chimney inspection

It starts inside, at the firebox. Refractory panels get checked for cracks and open seams. Mortar joints get probed. Then the damper. Plenty here are rusted shut from rain falling down an uncapped flue. The flue itself gets scanned top to bottom, usually with a camera. We look for slumped or displaced tiles. Open joints and light glazed creosote too.

Then the roof. Chase covers on stucco shafts rust from the middle out, and staining runs down the chase before anyone sees it inside. Masonry stacks get the crown checked. Cracked, or missing entirely. Step and counter flashing where the stack meets tile roofing is the usual leak point. Caps and spark arrestors are often gone, and nesting follows.

Appliance type changes everything. A pre-1970s masonry stack with clay tile reads nothing like a Superior, Heatilator, Marco or Majestic prefab. Sealed direct-vent gas units get checked at the termination. Gas log sets get checked for clearance and damper position.

Burning little wood does not mean low risk. Seismic shear cracking, water, salt corrosion and animals do more damage here than soot ever will. That is why annual makes sense even for a fireplace nobody uses. From the driveway, look for rust streaks down the chase. That one is free.