The local factors behind chimney relining (stainless) in Mississauga
The difference between a $200 service call and a $6,000 rebuild in Mississauga is usually about eighteen months of ignoring a small symptom.
Wind loading off Lake Ontario pushes driving rain against the south and west faces of a house, which is why water entry so often shows up on one side of a Mississauga home and nowhere else.
Salt spray and road grit carried by winter wind accelerate corrosion on exterior metal components far faster in Peel than the manufacturer's rating assumes.
Across Hurontario, Churchill Meadows, Malton, Mavis-Erindale and Northeast, 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.
If you live anywhere near Square One, 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.