Bedrock's housing stock shapes exactly where rodents get in. Housing spans historic mining-town construction to newer resort-driven development at elevation. Combined with the area's climate — a high mountain climate with dramatic seasonal extremes and a very short growing season — rodents seeking shelter from weather extremes make a beeline for any accessible gap.
Exclusion is the core of effective rodent control: finding and sealing every gap a mouse or rat could use to get inside, since traps alone just remove the current population without stopping the next one. We pair exterior sealing with interior trapping or bait stations, then follow up to confirm the problem is resolved.