The Last Manual Frontier: Why Claims Automation Stalls at the Supplement

This article is part of a sponsored series by Cotality.

Could there finally be a solution to the nagging claims supplement problem?

For years, the property insurance industry has pursued a singular vision: end-to-end, touchless claims.

Carriers have poured significant investment into first notice of loss (FNOL), aerial imagery, and automated preliminary estimating. And, in a perfect world where estimates always completely align with reality, this would all be enough to facilitate low touch claims processing.

Yet, despite massive strides in front-end automation, an all-too-familiar bottleneck quietly derails the experience halfway through: the supplement.

Not only is the supplement process unpredictable and frustrating for insurance companies but it has become nightmarish for policyholders. On the front end, everything seems to be going swimmingly… until repair work begins and contractors uncover differences between the initial estimate and the actual scope of damage.

The illusion of “full automation”

In 2026, claims workflows appear more digitized than ever on paper. But what happens once demolition begins and real-world repairs get underway?

Hidden structural damage, local building code requirements, and unpredictably volatile material pricing inevitably emerge. At that critical juncture, the sleek, digital claim crashes headfirst into a 1990s-era workflow: an email inbox. Insurers may be ahead of the curve in modernizing their processes, and same with restorers, but what about the workflows where they meet in the middle?

The problem is unorganized shared inboxes to which contractors send emails . Adjusters are left to manually open dense PDF scopes, hunting line by line to compare revised contractor estimates against the original file.

Across the property space, this unstandardized review process routinely adds two to four weeks to the claim lifecycle—largely because adjusters are forced to manually compare revised contractor estimates line by line against the original file.

Insurance professionals may even subconsciously push supplements to the bottom of their to-do lists, dreading the tedious “stare and compare” routine that strains both eyes and minds.

While the front end of the claim feels modern, the middle remains trapped in an administrative, manual mess.

Why is supplement volume becoming unmanageable?

Roughly 40% to 60% of exterior and roofing claims require a supplement once tear-off starts—meaning a huge portion of well-scoped files fall out of structured workflows.

It’s getting unwieldy due to a perfect storm of macroeconomic and operational pressures that push legacy supplement workflows past their breaking point:

• Inflation and price volatility: Rapid fluctuations in labor and material rates frequently render initial estimates obsolete almost immediately.
• Severe weather frequency: Complex multi-peril events uncover secondary damages that virtual scoping tools don’t always capture upfront.
• Burnout, attrition, and processing delays: Drowning in supplement inboxes, experienced adjusters spend their days playing PDF detective rather than resolving complex claims, driving down retention across the industry and leaving less-tenured adjusters to pick up where experienced staff left off.
• Technical difficulties: Even when carriers have in-house processes to handle incoming requests, these solutions don’t always sync with contractor systems, or custom portals frequently stall under the weight of maintenance and integration backlogs.

When a supplement sits idle in an inbox, the impact ripples outward. Contractors hit pause on job sites. Homeowners remain stuck in limbo during the most vulnerable moments of their lives. Meanwhile, carriers scramble to adjust loss reserves while risking substantial financial leakage from duplicate or unvetted line items.

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Could the nightmare be over?

True low-touch and no-touch claims cannot exist when the supplement process remains fundamentally manual.

We can’t call ourselves a high-tech industry as long as shared supplement inboxes still exist.

The industry is on the verge of a long-overdue transition that will bring a united claims supplement workflow that translates perfectly between claims professionals and restoration contractors.

Before this fall is over, the question will no longer be whether supplements can be automated. The wonder will be around how quickly carriers can eliminate the last manual barrier standing between them and a truly touchless claims experience.

Are manual supplement workflows slowing down your cycle times? Keep an eye on this space for information on a solution from Cotality™ that will change everything…

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Topics InsurTech Claims