Supplemental Estimating Service for Roofing Claims
Accurate Xactimate supplemental estimates, written by licensed Independent Adjusters and followed through with the carrier — so contractors recover 20-40% more per claim without writing the estimate themselves.
What our supplemental estimating service covers
When a carrier's first estimate falls short, the supplemental estimate is what brings the rest of the legitimate scope onto the claim. We build it in Xactimate with current area pricing and back every line with documentation — missed line items, correct materials and quantities, detach-and-reset work, overhead and profit, and the line items carriers most commonly miss. It is the same Xactimate work as our Xactimate estimate service, focused on adding accurate scope to an existing claim.
How it works
We review the carrier estimate
A licensed Independent Adjuster reads the carrier's scope line by line against the photos, measurements, and field conditions to find what's missing, underpriced, or omitted.
We write the supplemental estimate in Xactimate
Every item is built in Xactimate with the current area price list — missed line items, correct materials and quantities, code-required upgrades, and overhead and profit where the claim qualifies.
We document and submit
Photos, code citations, and manufacturer specs back every line so the carrier has no grounds to deny, then we submit the supplement directly.
We follow it through
First carrier follow-up within 7 days, then every other business day until the additional scope is addressed and the claim is resolved.
Want the full walkthrough? See how our supplement process works from job handoff to resolution.
Supplemental hail damage estimates
Hail is where the most scope gets missed. A carrier's first number on a hail claim routinely leaves off steep and high charges, ridge and ventilation, drip edge, ice-and-water shield, and code-required upgrades. We write the supplemental hail damage estimate — and the broader supplemental roofing estimate — with current area pricing and photo, code, and manufacturer documentation behind every line, so the carrier has the basis to approve the full repair rather than a partial one.
Why contractors hand off the estimating
Writing an accurate supplemental estimate takes Xactimate proficiency, current price-list knowledge, code research, and the documentation discipline to make it stick with the carrier. Across 10,000+ supplements, that work has recovered an average of $7,000-$8,000 per claim for our contractors — while keeping their own crews on the roof instead of behind a keyboard.
Supplemental Estimating Questions
A supplemental estimate is a revised, line-item estimate submitted to the insurance carrier after the initial estimate — capturing scope that was missed, underpriced, or required by code once the full extent of the work is known. It is written in the carrier's own estimating software (Xactimate) so it can be reviewed and approved against the existing claim.
They overlap — both are built in Xactimate by licensed adjusters. Our supplemental estimating service is specifically the estimate written to add to an existing claim, with the documentation and carrier follow-through to get it approved. If you just need a clean line-item estimate, see our Xactimate estimates service.
Each estimate is written by a licensed Independent Adjuster with at least five years of claims experience (most have fifteen or more), using the current Xactimate price list for the property's market. We verify codes and line items against the applicable jurisdiction rather than guessing.
We deliver the supplemental estimate within 48 hours of receiving complete documentation. From there we follow up with the carrier every other business day until it is resolved.
Yes — hail is the most common peril we estimate. We write the supplemental hail damage estimate against the carrier's scope, adding the steep/high charges, ventilation, drip edge, ice-and-water shield, and code upgrades hail claims routinely miss, all documented so the carrier can approve them.
No. We are licensed Independent Adjusters supporting the contractor — not public adjusters. We do not represent the policyholder or negotiate coverage. We write an accurate, well-documented estimate and have discussions with the carrier to get every legitimate item addressed.
Send Us a Claim to Estimate
Have a licensed Independent Adjuster write your next supplemental estimate.