Chimney Cleaning in McMinnville, Oregon | Remove Creosote Buildup Before It Becomes a Fire Hazard

Creosote is the byproduct of incomplete combustion. Every time you burn wood, gases rise through the flue and condense on the cooler chimney walls, leaving behind a tar-like residue that hardens over time. Stage 1 creosote is dusty and easy to brush away. Stage 2 is flaky and tar-like. Stage 3 is a thick, glazed coating that’s extremely difficult to remove and highly flammable. Most chimney fires start with Stage 3 creosote that ignites inside the flue.

Yamhill County homes are particularly prone to heavy creosote buildup. The long, wet heating season means fireplaces and wood stoves see months of consistent use. Many rural properties between McMinnville and Sheridan rely on wood heat as a primary or supplemental source, and the Douglas fir and oak common in this area produce varying levels of creosote depending on moisture content and burn temperature. A wet log burned at low temperature produces far more creosote than dry, seasoned hardwood burned hot.

Our chimney cleaning process starts with an inspection of the flue to assess the type and amount of buildup. We use professional-grade rotary brushes and rods sized to your specific flue dimensions (round, square, or rectangular) to scrub the interior walls clean. A high-powered vacuum system captures the debris so it doesn’t end up in your living room. We clean the smoke shelf, smoke chamber, and damper area where creosote and ash tend to collect in hard-to-reach spots.

After the cleaning, we check the flue liner for cracks or deterioration that may have been hidden under the buildup. A clean flue is also an opportunity to spot early-stage damage that’s much cheaper to fix now than after another full heating season. We’ll let you know exactly what we found, what condition your chimney is in, and when you should schedule your next cleaning based on how often and what you burn.

We clean chimneys connected to open fireplaces, fireplace inserts, wood stoves, pellet stoves, and gas appliances. The process and tools differ depending on the appliance and flue type, but the goal is the same: a clear, safe venting path for combustion gases to exit your home. If your system needs more than just a cleaning, our team handles Chimney Repair, Chimney Inspection, and Chimney Cap Installation so you don’t have to call a second company.

How to tell your chimney needs cleaning

The most obvious sign is smoke backing up into your living room when you light a fire. That usually means the flue is partially blocked by creosote, a debris obstruction, or both. A strong smoky or tar-like odor coming from your fireplace when it’s not in use is another indicator, especially during warm months when humidity pushes smells back down the flue.

Look inside the firebox with a flashlight. If the flue walls are coated in black, flaky, or shiny residue, that’s creosote at various stages of buildup. You might also notice reduced draft (fires that burn sluggish and don’t draw well) or more smoke than usual during a burn. Any of these signs mean the flue needs attention before the next heating season.

If it’s been more than 12 months since your last cleaning and you’ve been burning regularly, don’t wait for symptoms. Creosote accumulates out of sight, and by the time you notice performance issues, the buildup is often well past the point where a simple brushing will handle it. Simpson Property Services has been helping Yamhill County homeowners stay ahead of chimney maintenance since 1999.