Costello Construction

Costello Construction is a renowned construction company based in Columbia, Maryland, United States. Established in 1998, the company employs approximately 51 people and specializes in commercial construction, including higher education, fitness, and office buildings. Costello Construction is known for its commitment to quality, integrity, and self-performance, which has earned it a reputation for building structures of the highest standards in the Maryland and Washington D.C. area.