<p>Composite materials based on polymers are being identified as helping to promote sustainable infrastructure by providing lightweight, durable, and corrosion-resistant solutions. Their applications span construction, transportation, energy, and marine sectors, enabling longer service life, reduced maintenance, and enhanced performance of modern structural systems. The curing process plays an essential role in determining the performance and reliability of polymer composites, influencing their mechanical, thermal, and chemical properties. This review aims to explore the advances, challenges, and opportunities in curing methods for polymer composites, focusing on both traditional and emerging techniques. Key motivations include the need for faster curing times, improved material properties, and enhanced sustainability in the processing of composite materials. The review covers all forms of curing, ranging from heat, ultraviolet, and microwave curing to more recent technologies like additive manufacturing. It further addresses existing challenges, including process optimization in curing, enhancement of energy efficiency, and ensuring compatibility across materials. Various research highlights that significant progress has already been made, still there is a need to overcome current challenges and design the full potential of polymer composites for the next-generation market. The review also explores sustainable curing approaches that reduce environmental impact by minimizing energy consumption and incorporating eco-friendly additives, thus advancing the development of green polymer composites for building and construction applications.</p>