The local factors behind dryer vent cleaning in Waterloo
Ask any technician who works Waterloo routes and they will tell you the same thing: the callbacks cluster in a handful of predictable places.
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 Waterloo home and nowhere else.
Infill and renovation work in Waterloo frequently reroutes venting without re-sizing it, and undersized or over-long runs are the single most common cause of poor draft we see.
Across Empire, Beechwood, Westmount, Colonial Acres and Lincoln Heights, 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 the University of Waterloo, the practical takeaway is that a dryer vent cleaning 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.