06/18/2026
Western PA winter reality check: watch for “fresh” caulk failure around foundation vents and crawlspace access.
You patch it. It looks sealed. Then freeze/thaw rolls in and those hairline gaps reopen—especially where pipes, vent sleeves, and utility gaps meet the foundation.
Here’s what we see: people keep re-caulking the surface while rodents and insects keep finding the same pathway. With exclusion, we focus on closing the entry correctly so there’s something for pests to hit, not a temporary “cosmetic” fix.
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