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Our Story
Callahan is a full-service construction management company that has served the New England and Northeast regions for more than 60 years. We provide a wide range of pre-construction and construction management services and have completed projects in multi-family residential, senior housing, hospitality, retail, corporate office, life sciences, educational, and other markets. As one of the largest open shop construction firms in the Northeast, we work with a wide range of local, regional, and national clients.
Commercial Experience
Apartments & Condominiums
Assisted Living
Education (K-12)
Historic Preservation
Hotel / Motel
House
Mixed Use
Office Building
Residential Building
Retail Store
School / College / University
Misc Project
Restaurant
Single Family Residential
Regions & Counties Serviced
- New England
Massachusetts All
Our CSI Codes
01 35 16 - Alteration Project Procedures
31 01 10 - Maintenance of Clearing
31 01 20 - Maintenance of Earth Moving
31 01 50 - Maintenance of Excavation Support and Protection
31 06 10 - Schedules for Clearing
31 06 20 - Schedules for Earth Moving
31 11 00.00.01 - Clearing and Grubbing
31 12 00.00.01 - Selective Clearing
31 14 13 - Soil Stripping and Stockpiling
31 14 13.13 - Soil Stripping
31 14 13.16 - Soil Stockpiling
31 14 16 - Sod Stripping and Stockpiling
31 14 16.13 - Sod Stripping
31 14 16.16 - Sod Stockpiling
31 20 00.00.01 - Earth Moving
31 22 13 - Rough Grading
31 22 16 - Fine Grading
31 22 19 - Finish Grading
31 22 19.13 - Spreading and Grading Topsoil
31 23 16 - Excavation
31 23 16.13 - Trenching
31 23 16.16 - Structural Excavation for Minor Structures
31 23 16.26 - Rock Removal
31 23 33 - Trenching and Backfilling
35 41 16 - Levee Cutoff Trenches
