Crickets are attracted to darkness, heat, and humidity. Controlling the humidity of your building is the best way to keep them out. Consider investing in a dehumidifier for particularly at-risk areas (like your basement) and ensure those have proper ventilation.
Look for and seal cracks around the foundation, siding, frames, or utility lines with caulk. Try to reduce the number of things that attract crickets to your building. Replace white outdoor lights with “cooler” yellow lights, and trim grass and bushes frequently. When you have an infestation and need cricket pest control, contact Assured.