New Jersey Court Washes Away Insurer’s Waiver of Subrogation Arguments

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William L. Doerler discusses the case ACE Am. Ins. Co. v. Am. Med. Plumbing.

May 27, 2019
William L. Doerler - The Subrogation Strategist

Subrogating insurers often address waiver of subrogation clauses in the form contracts drafted by the American Institute of Architects. In ACE Am. Ins. Co. v. Am. Med. Plumbing, No. A-5395-16T4, 2019 N.J. Super. LEXIS 45 (App. Div.), ACE American Insurance Company (ACE) argued that the waiver clause in the AIA General Conditions form A201-2007 did not extend to the post-construction loss at issue. Adopting what the court termed the “majority” position, the Appellate Division held that, by reading §§ 11.3.5 and 11.3.7 together, the waiver applied to bar the insurer’s subrogation claim. The Appellate Court’s ruling makes pursuing subrogation against New Jersey contractors using AIA contract forms more difficult.

In this matter, Equinox Development Corporation (Equinox Development), ACE’s insured, contracted with Grace Construction Management Company, LLC (Grace Construction) to build the “core and shell” of a new health club (the Work). Grace Construction subcontracted the plumbing work to American Medical Plumbing, Inc. (AM Plumbing).

Mr. Doerler may be contacted at


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