Sealing entry points is crucial in preventing rodent infestations, as these pests can squeeze through surprisingly small gaps. Focus on areas like foundation cracks, gaps around pipes, and spaces under doors. Materials such as steel wool, caulk, and metal mesh are effective in blocking these entryways. Consider the cost and durability of each material, as well as the potential need for professional assistance. Regular maintenance and inspections can help ensure your home remains rodent-free. Ask Improvi.ai for personalized guidance on the best sealing techniques and materials for your specific situation.