CSIA certified chimney inspection for Parker's 1940s–1970s masonry homes. Parker's most common inspection scenario is a fireplace used regularly over many years without a documented sweep or professional inspection — resulting in unknown creosote accumulation at an unknown stage. Inspection establishes baseline creosote stage, liner condition, and structural status before any service decision is made.
Creosote is classified by the CSIA into three stages based on form, density, and fire risk. Parker chimneys that have not been swept professionally in years may be in any stage. Inspection identifies which stage is present in which sections of the flue — the basis for every service decision that follows.
Dry, gray-black deposits that brush off easily. Typically from shorter burn cycles or well-seasoned wood. Lower fire risk when deposits are thin.
Standard brush sweepShiny, hard black coating that does not brush off. Forms when flue temperatures are too low during burning. Burns intensely if ignited — significant fire risk.
Chemical treatment + follow-up sweepThick, porous deposits that have built up over many seasons. Highest fire risk — a Stage 3 chimney fire can burn at temperatures exceeding 2000°F inside the flue.
Chemical + rotary power cleaning + relining assessmentA Parker chimney with unknown service history requires a different approach than an annual maintenance visit. We treat it as a baseline inspection — starting with a full Level 2 camera run before any sweeping occurs. This allows us to document what is present at each section of the flue before the camera view is altered by sweeping, and gives the homeowner a permanent written record of the starting condition.
Stage 2 and Stage 3 creosote can obscure liner cracks and joint gaps during camera inspection. After initial chemical treatment and sweeping, a second camera pass may be warranted to assess liner integrity once deposits are reduced. Written findings document which sections were assessable on the first pass and whether a follow-up camera review is recommended after removal.