Building Conservation Associates, Inc. is a consulting firm that specializes in both the technical and historical aspects of restoring buildings and works of art. BCA also assists clients in the preparation of federal rehabilitation tax credit applications. BCA's approach to conservation is pragmatic, combining field documentation, archival research, materials testing, and scientific research to satisfy project requirements without compromising quality.

Since its founding in 1985, BCA has maintained an experienced staff of preservationists, conservators, scientists, architects, historians, planners, and artisans. BCA has developed a reputation for its practical approach in the fields of historic preservation and materials conservation.

BCA is comprised of BCA NY, BCA New England, and BCA South.