Sublimit

A sublimit restricts the amount the insurer will pay for a specific type of loss to an amount less than the full policy limit. For example, a commercial property policy with a $10,000,000 limit might include a $250,000 sublimit for sewer and drain backup, a $100,000 sublimit for mold remediation, and a $500,000 sublimit for water damage from any one occurrence.

Sublimits have become increasingly common in apartment insurance as carriers seek to manage their exposure to high-frequency loss types. Water damage sublimits, in particular, have been widely adopted in response to the escalating cost of water-related claims. Mold sublimits are nearly universal because of the potentially high cost of remediation and the liability exposure associated with mold-related health claims.

Apartment owners should review all sublimits in their policy carefully and evaluate whether the amounts are adequate for their property. A $50,000 water damage sublimit on a 100-unit building is likely insufficient, as a single multi-floor pipe failure could easily exceed that amount. In some cases, sublimits can be increased by endorsement for an additional premium, or the exposure can be addressed through a separate standalone policy.