Cambridge conditions that change how gas line & b-vent conversion is done
Homeowners in Cambridge tend to call us at one of two moments: the week before guests arrive, or the week after something started smelling wrong.
Many Cambridge properties were re-roofed at least once without the flashing being re-detailed, leaving a cosmetic seal doing structural work.
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 Cambridge home and nowhere else.
Across Riverside, Highland Park, Central Preston, Doon and West Galt, 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 Grand River, the practical takeaway is that a gas line & b-vent conversion 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.

