What makes chimney flashing repair in Cambridge its own problem
Homes in Cambridge rarely fail all at once — they fail slowly, through one heating season at a time.
Older Cambridge stock was built when soft lime mortar and clay liners were the standard; modern high-efficiency appliances vent very differently, and the mismatch causes condensation the original builder never planned for.
Air-sealing and window upgrades have made Cambridge homes far tighter than they were designed to be, and a tight house starves a natural-draft appliance of the make-up air it needs.
Across Franklin, West Galt, Doon, Alison and Central Preston, 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 chimney flashing repair 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.