Attorneys and Parties

Mt. Hawley Insurance Company
Plaintiff-Respondent
Attorneys: Timothy E. Delahunt

Argonaut Insurance Company (as subrogee of 160 Bleecker Street Owners, Inc.)
Defendant-Appellant
Attorneys: Eliot L. Greenberg

Sentinel Insurance Company Ltd.
Defendant-Appellant
Attorneys: Judy Lu

Michelle Kuo Corp.
Defendant

Brief Summary

Issue

Insurance coverage dispute under a Commercial General Liability (CGL) policy and Commercial Excess Liability policy for fire damage arising from construction-related work and the scope of an exception for "interior tile" work.

Lower Court Held

Granted Mt. Hawley Insurance Company's motion for summary judgment declaring no coverage, dismissed defendants' counterclaims, and denied defendants' summary judgment motion.

What Was Overturned

The appellate court reversed, denied Mt. Hawley’s motion, granted defendants’ summary judgment on their counterclaims, dismissed the complaint, and declared Mt. Hawley must defend and indemnify in the underlying subrogation actions.

Why

The policy’s exclusions and the "interior tile" exception were ambiguous because "interior tile" was undefined and could reasonably include closely related preparatory tasks such as welding to prepare the floor for tiling; ambiguities are construed against the insurer, which failed to show the exclusions applied with no other reasonable interpretation.

Background

Mt. Hawley issued an all-risk CGL and excess policy in connection with construction work that included a bathroom refurbishment. To level and prepare the bathroom floor for tiling, a laborer used welding equipment to secure a metal hatch door; the welding caused a fire and property damage. Mt. Hawley denied coverage, asserting welding was excluded. Defendants argued the welding was preparatory to covered "interior tile" work, which is listed as an exception to the policy’s own-work property damage exclusions.

Lower Court Decision

The Supreme Court, New York County granted Mt. Hawley’s motion for summary judgment on its declaratory judgment complaint, dismissed defendants' counterclaims, and denied defendants’ motion for summary judgment, effectively finding no duty to defend or indemnify.

Appellate Division Reversal

Unanimously reversed on the law, without costs. The court held Mt. Hawley failed to meet its burden to establish the applicability of the exclusions as the term "interior tile" was undefined and reasonably encompassed preparatory tasks like welding. Ambiguities in exclusions must be strictly and narrowly construed against the insurer, resulting in coverage. The court denied Mt. Hawley’s motion, granted defendants’ summary judgment on their counterclaims, dismissed the complaint, and declared Mt. Hawley is obligated to defend and indemnify in the underlying subrogation actions.

Legal Significance

Reaffirms that insurance policy exclusions must be stated in clear and unmistakable terms and are strictly and narrowly construed against the insurer. Undefined scope terms in exceptions (e.g., "interior tile") that could reasonably include preparatory work create ambiguity that triggers coverage. The decision underscores the insurer’s burden to show an exclusion applies with no other reasonable interpretation.

🔑 Key Takeaway

If a policy’s exclusion and its exception are ambiguous—particularly where the exception’s scope (such as "interior tile" work) is undefined—courts will construe the ambiguity against the insurer, and preparatory tasks reasonably related to the covered work can trigger the duty to defend and indemnify.