German cockroaches favor warm, humid spaces near food and water — kitchens, behind appliances, under sinks — and Sandy's a semi-arid climate with hot, dry summers and cold, snowy winters, shaped by the surrounding Wasatch Mountains and Great Salt Lake keeps them active most of the year. American cockroaches, larger and reddish-brown, prefer basements, drains, and utility rooms. Suburban homes with basements dominate here, built over decades of steady Wasatch Front population growth.
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.