Duffield Associates, Inc.

  • Engineering
5400 Limestone Rd.
Wilmington, DE 19808-1232
(302) 239-6634
(302) 239-8485 (fax)
  • About

    Duffield is a civil engineering company serving PA, MD, NJ, & DE. Our services include architecture engineering, geotechnical engineering, wastewater engineering, and materials testing.

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