Enter EMSEAL Joint Systems, Ltd. of Westborough , Mass. , the provider of expansion joint systems for all three projects. New York-area companies working with EMSEAL included general contractor Hunt-Bovis and specialty contractor Eagle One Roofing for Citi Field, general contractor Turner Construction and specialty contractor Wolkow Braker Roofing for Yankee Stadium, and general contractor Skanska and specialty contractor Schnell Contracting Services for the Meadowlands