A dime-sized hole is a front door for a mouse, and a crack the width of a credit card is an entry for a cockroach.
Focus on the kitchen and bathroom. Use bait stations in dark corners and Growth Regulators (IGRs) , which prevent young roaches from reaching reproductive age. DO IT YOURSELF PEST CONTROL
Don't spray the ones you see. Use borate-based gel baits . The workers take the "food" back to the queen, killing the entire colony rather than just the scouts. A dime-sized hole is a front door for
DIY is great for maintenance, but call a professional if you see: on your foundation (a sign of termites). Widespread wood damage or "sawdust" piles. Don't spray the ones you see
Repair tiny tears in window screens using a simple patch kit. 3. Interior Tactics (The Strike)
If you can see light under your door, a bug can get in. Install heavy-duty door sweeps on all exterior exits.