Home Addition Projects by SEI Construction, Inc.

Every home addition in this gallery was designed and built by SEI Construction for homeowners throughout Union, Essex, and Morris County, NJ. From above-garage bedroom suites and room additions to second story expansions and sunrooms, each project reflects a specific household’s need for more space built seamlessly into the existing home. Browse the work and when you are ready to talk about your own addition visit our home addition services page to learn how we manage projects from first consultation through final walkthrough.