The local factors behind chimney relining (stainless) in Oshawa
The difference between a $200 service call and a $6,000 rebuild in Oshawa is usually about eighteen months of ignoring a small symptom.
Snow load and ice damming stress the roof-to-wall junction each winter; by spring the sealant that was doing the work has usually torn.
Infill and renovation work in Oshawa 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 O'Neill, McLaughlin, Pinecrest, Eastdale and Windfields, 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.

