Halton Hills conditions that change how chimney relining (stainless) is done
If you mapped our Halton Hills service calls on a calendar, you would see the same shape every year: the problems are created in February and paid for in November.
Post-war subdivisions across Halton share the same construction generation, so when one street starts showing the same defect, the neighbours usually follow within a couple of seasons.
Range hoods and basement bathroom fans routinely out-pull an older flue, so the house depressurises and the flue reverses — a Halton Hills problem that looks like a chimney fault but starts elsewhere in the building.
Across Glen Williams, Hornby, Norval Halton, Georgetown and Stewarttown, 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 relining (stainless) 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.