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ALERT: FLASH FLOOD WARNING: Oahu in Honolulu, HI — Warning issued April 10 at 4:46PM HST until April 10 at 7:45PM HST by NWS Honolulu HIALERT: FLOOD WATCH: Emmet — Watch issued April 10 at 10:31PM EDT until April 15 at 8:00AM EDT by NWS Gaylord MIALERT: FLOOD WATCH: Western Chippewa — Watch issued April 10 at 10:31PM EDT until April 15 at 8:00AM EDT by NWS Gaylord MIALERT: FLOOD WATCH: Clay, MN — Watch issued April 10 at 9:29PM CDT by NWS Grand Forks NDALERT: FLOOD WATCH: Guam — Watch issued April 11 at 8:05AM ChST until April 15 at 10:00AM ChST by NWS Tiyan GUALERT: FLOOD WATCH: Bayfield — Watch issued April 10 at 1:04PM CDT until April 15 at 7:00AM CDT by NWS Duluth MNFEMA approves major disaster declaration for Tennessee following severe winter storm — Feb. 7, 2026IICRC S520 mold remediation standard cited in 2026 National Defense Authorization Act — Jan. 5, 2026Hawaii receives presidential disaster declaration for flooding — Apr. 8, 2026IICRC S500 consensus body issues position statement on weather-related water damage — Mar. 16, 2026LA wildfire rebuilding: California Insurance Commissioner study shows fire-safe construction cuts losses — Mar. 27, 2026FEMA designates 15 Tennessee counties as natural disaster areas after winter storm — Apr. 6, 2026IICRC S220 standard open for second round of public input — Mar. 27, 2026R&R Magazine: AI adoption reaches 88% of restoration businesses in 2026 — Feb. 18, 2026Commerce Dept. invests $4.9M in disaster supplemental funding for storm-impacted states — Apr. 9, 2026Florida Helene and Milton recovery: FEMA provides ongoing support as long-term recovery continues — Feb. 10, 2026ALERT: FLASH FLOOD WARNING: Oahu in Honolulu, HI — Warning issued April 10 at 4:46PM HST until April 10 at 7:45PM HST by NWS Honolulu HIALERT: FLOOD WATCH: Emmet — Watch issued April 10 at 10:31PM EDT until April 15 at 8:00AM EDT by NWS Gaylord MIALERT: FLOOD WATCH: Western Chippewa — Watch issued April 10 at 10:31PM EDT until April 15 at 8:00AM EDT by NWS Gaylord MIALERT: FLOOD WATCH: Clay, MN — Watch issued April 10 at 9:29PM CDT by NWS Grand Forks NDALERT: FLOOD WATCH: Guam — Watch issued April 11 at 8:05AM ChST until April 15 at 10:00AM ChST by NWS Tiyan GUALERT: FLOOD WATCH: Bayfield — Watch issued April 10 at 1:04PM CDT until April 15 at 7:00AM CDT by NWS Duluth MNFEMA approves major disaster declaration for Tennessee following severe winter storm — Feb. 7, 2026IICRC S520 mold remediation standard cited in 2026 National Defense Authorization Act — Jan. 5, 2026Hawaii receives presidential disaster declaration for flooding — Apr. 8, 2026IICRC S500 consensus body issues position statement on weather-related water damage — Mar. 16, 2026LA wildfire rebuilding: California Insurance Commissioner study shows fire-safe construction cuts losses — Mar. 27, 2026FEMA designates 15 Tennessee counties as natural disaster areas after winter storm — Apr. 6, 2026IICRC S220 standard open for second round of public input — Mar. 27, 2026R&R Magazine: AI adoption reaches 88% of restoration businesses in 2026 — Feb. 18, 2026Commerce Dept. invests $4.9M in disaster supplemental funding for storm-impacted states — Apr. 9, 2026Florida Helene and Milton recovery: FEMA provides ongoing support as long-term recovery continues — Feb. 10, 2026
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Supplementing Insurance Claims: How Restoration Contractors Can Recover Legitimate Additional Costs

Supplementing an insurance claim — requesting additional payment for costs not included in the initial estimate — is a legitimate and necessary part of the restoration process. Here is how to do it effectively.

CHICAGO — Supplementing an insurance claim — requesting additional payment for costs that were not included in the initial estimate or that were discovered during the course of the restoration work — is a legitimate and necessary part of the restoration process. Here is how restoration contractors can supplement claims effectively and professionally.

Supplements arise for several reasons: hidden damage that was not visible during the initial assessment, code upgrade requirements that were not anticipated, material price increases between the estimate and the reconstruction phase, and additional scope items that were overlooked in the initial estimate.

The key to a successful supplement is documentation. Contractors must be able to demonstrate that the additional costs are legitimate, necessary, and supported by the applicable estimating standard — typically Xactimate. Photographs, moisture readings, code citations, and material invoices are the most effective forms of documentation.

Xactimate is the estimating software used by the majority of insurance carriers and restoration contractors in the United States. Contractors who are proficient in Xactimate and who understand how to properly code and document additional scope items are significantly more successful in obtaining supplement approval than those who are not.

The supplement process requires effective communication with the insurance adjuster. Contractors who present supplements professionally, with clear documentation and a respectful tone, are more likely to obtain approval than those who present supplements as demands or who use adversarial language. Building a positive working relationship with adjusters is a long-term competitive advantage.

Sources & Citations
Topics:insurance supplementXactimateclaim documentationrestoration contractoradjuster relations
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RNN is the national authority for disaster restoration industry news. Our editorial team covers storm, mold, fire, water, insurance, policy, and health topics for consumers, contractors, and legislators. Have a tip? Email [email protected]

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