Georgina conditions that change how chimney cleaning & sweep is done
Most Georgina homeowners book chimney cleaning & sweep for one reason and discover a second problem on the same visit.
Range hoods and basement bathroom fans routinely out-pull an older flue, so the house depressurises and the flue reverses — a Georgina problem that looks like a chimney fault but starts elsewhere in the building.
Older Georgina stock was built when soft lime mortar and clay liners were the standard; modern high-efficiency appliances vent very differently, and the mismatch causes condensation the original builder never planned for.
Across Jackson's Point, Roches Point, Keswick, Baldwin and Belhaven, the housing stock changes street by street, and the correct method changes with it. A century home with a soft-brick stack does not get the same treatment as a 2010 build with a factory-built vent — using one method on both is how systems get damaged.
the practical takeaway is that a chimney cleaning & sweep visit should start with an assessment, not a tool. Any crew that begins work before telling you what they found is guessing on your behalf.