A retrofit is the process of adding new features or upgrading the existing systems of an existing building or structure to improve its performance, energy efficiency, safety, or functionality. This may involve the installation of new equipment, such as HVAC systems, lighting fixtures, or insulation, the replacement of outdated or malfunctioning systems, or the modification of existing components to meet current standards and regulations. Retrofitting can be conducted on a wide range of buildings, from residential homes to commercial spaces or industrial facilities.
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