I am pleased to provide a reference for Airitan Management and their principal, Kelvin Zou. We were the architects and Airitan was the general contractor for the conversion of a five stories office building to 30 residential units at 271 West 125th Street, NY.  Airitan was professional, efficient, pleasant, respectful and very dedicated to the work. Kelvin’s crew always presented themselves in a direct, honest, and considerate manner. They were easy to interact with and communicated well with the owner representative and architects. Airitan is exceptional overall. The job they did should enhance their reputation. I would definitely recommend Airitan Management for construction work. We look forward to working with them again in the future.