Alta Design Associates, Inc. is a Professional Engineering and Design Firm serving Pennsylvania and the Delaware Valley. Alta Design Associates, Inc. provides Civil Engineering, Architectural Engineering, Structural Engineering, and Geotechnical Engineering. Alta Design Associates specializes in custom homes, additions, renovations, swimming pools, stormwater management, variance and permit applications, site surveys, retaining walls, dams, ponds, and all various types of construction projects both residential and commercial.