Customer Service

Contact Us

Customer Service

1-800-221-5175 (9a.m.– 6p.m. EST, M–F)

Sales Consultants

Sadlier School

Sadlier Religion

Tech Support

For Vocabulary Workshop and Common Core Progress English Language Arts and Mathematics: 
For Online Assessments and eBooks:

Mailing Address

William H. Sadlier, Inc. 
Atten: Customer Service 
25 Broadway 
New York, NY 10004-1010