Cockroaches need three things to establish a colony: food, water, and warmth. Westboro's housing stock gives them exactly that. Basements are standard here given the region's cold winters and severe-storm exposure. Combined with Westboro's climate — a humid continental climate with hot, humid summers, cold winters, and a real severe-weather season each spring — indoor cockroach pressure rarely lets up on its own.
Treatment starts with locating the harborage points — the tight, warm, food-adjacent spaces roaches actually live in — and applying gel bait directly there rather than spraying open floor space. This targets the colony at its source and avoids the resistance issues that plague over-the-counter sprays. We follow up to verify the population has collapsed, not just scattered.