Understanding the cost of insulation is crucial for informed decision-making. The price can vary significantly depending on the insulation type, R-value (indicating thermal resistance), thickness, and coverage area. Batt and blanket insulation are typically the most affordable options, while spray foam insulation offers higher R-values at a premium cost. Labor costs for installation also factor into the overall expense. Consulting with insulation contractors, researching online resources, and comparing quotes can help determine a reasonable price for your specific insulation needs.