The Estimate Company

Insurance Claim Supplement — Challenge Underpayments and Get Paid in Full

When your insurance claim comes back short, an insurance claim supplement is how you fight back. We build detailed, documented supplements that challenge carrier underpayments with Xactimate pricing data, code citations, and photo evidence — and we don't stop until your claim is approved.

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What This Service Covers

Claim Underpayment Analysis

We analyze the carrier's initial payment against your actual scope of work and calculate the exact underpayment amount. This analysis becomes the backbone of your supplement claim.

Line-by-Line Supplement Build

We add every missing item to the claim with proper Xactimate codes, correct quantities, and written justifications. Carriers approve well-documented supplements faster and more often.

Supporting Documentation

We compile manufacturer specs, local building codes, material invoices, and photo documentation to support every line item in your supplement. Documented claims are paid claims.

Follow-Up & Rebuttal

If the carrier denies supplement items, we write formal rebuttals and escalate through the carrier's review process. Most contested supplements are ultimately approved with proper persistence.

Xactimate Line Items We Recover

500%+ ROI — Guaranteed

Work with us on 2 claims per week for 12 months. We guarantee a minimum of six figures in additional margin — or we write you a $5,000 check.

Start With a Free Supplement