Underpaid Roof Claim? How to File a Suppl… | Wannamaker

You filed your claim. The adjuster came out, spent 30 minutes on your roof, and sent you a settlement check. Then your contractor looked at the scope and said something like: "This doesn't cover half of what needs to be done." Sound familiar? You're not alone. Underpaid roof claims are one of the most common problems San Antonio homeowners face after a hailstorm — and most people cash the check and move on, not realizing there's a formal process to recover the rest. It's called a supplement, and it's your right under your policy.

What Exactly Is a Supplement?

A supplement is a formal request to your insurance carrier for additional funds when the original claim payout doesn't match the actual cost of repairs. It's not adversarial. It's not a lawsuit. It's a routine part of the claims process that adjusters and carriers deal with every single day.

Here's why supplements exist: the initial adjuster visit is often rushed. The adjuster may work for a third-party firm handling hundreds of claims after a major storm. They might miss damage on certain slopes, overlook code-required upgrades, or use pricing that doesn't reflect current San Antonio material and labor costs. A supplement fills the gap between what they estimated and what the job actually requires.

Why Underpayment Happens So Often in San Antonio

San Antonio sits in one of the most hail-active corridors in the country. When a major storm rolls through — whether it's hitting Stone Oak, Helotes, or Schertz — carriers get flooded with claims. To manage volume, many insurers deploy desk adjusters or independent adjusters from out of state who may not be familiar with local building codes, Bexar County permit requirements, or the real cost of materials here.

Common items that get underpaid or left off initial scopes:

• Drip edge replacement. Texas code (IRC R905.2.8.5) requires drip edge on asphalt shingle roofs. Many adjusters leave it out entirely.
• Ridge vent or ventilation upgrades. If your existing ventilation doesn't meet current code, bringing it up to standard is a covered cost on most replacement claims.
• Ice and water shield in valleys. Required by code in new installations but frequently omitted from adjuster scopes.
• Steep slope charges. If your roof pitch is 7/12 or greater, labor costs increase significantly. Adjusters sometimes apply flat-rate pricing regardless of pitch.
• Satellite dish reset, gutter reattachment, paint touch-ups. Small line items that add up to hundreds or thousands of dollars.

The Step-by-Step Supplement Process

1. Get a Detailed Contractor Inspection First

Before you can file a supplement, you need documentation that proves the original scope is insufficient. This starts with a thorough free roof inspection from a contractor who knows how to read and write Xactimate estimates — the same software your insurance company uses. If your contractor can't produce an Xactimate-format estimate, that's a red flag.

2. Compare the Adjuster's Scope Line by Line

Your contractor should sit down with the insurance company's estimate and identify every missing or underpaid line item. This isn't guesswork — it's a methodical comparison. Missing starter strip? Note it. Wrong shingle type priced? Note it. No allowance for permits? Note it.

3. Submit the Supplement with Supporting Evidence

The supplement package typically includes:

• Revised Xactimate estimate with every additional line item clearly marked.
• Photographs documenting damage the adjuster missed, including measurements and close-ups.
• Code documentation — specific references to building code requirements that justify additional work.
• Material invoices showing current local pricing if the adjuster used outdated rates.

This gets submitted directly to the carrier's claims department. Most carriers have a dedicated supplement review team.

4. Negotiate and Follow Up

The carrier will review the supplement and either approve it, partially approve it, or push back. This is where experience matters. A contractor who handles insurance claims regularly knows how to respond to pushback with the right documentation and code references. Most supplements go through one or two rounds of revision before final approval.

How Much Money Are We Talking About?

On a typical roof replacement in San Antonio, we commonly see supplements recover anywhere from $1,500 to $6,000 or more beyond the initial payout. On larger homes — especially in neighborhoods like Alamo Heights or Stone Oak with steep, complex roof lines — the gap can be even wider. That's real money that belongs to you under your policy. You already paid your deductible. The supplement process exists to make sure the carrier pays what they owe.

What NOT to Do After an Underpaid Claim

• Don't just accept the first check. The initial payout is rarely the final word. Carriers expect supplements — it's built into their workflow.
• Don't hire a contractor who can't write Xactimate. If they hand-write an estimate on a notepad, your carrier will reject it.
• Don't wait too long. Texas policies have time limits for filing supplements. Waiting months gives the carrier grounds to deny additional funds.
• Don't confuse a supplement with a public adjuster. A supplement is filed by your contractor. A public adjuster is a licensed third party who charges a percentage of your claim. For most residential claims, a knowledgeable contractor handles the supplement process at no extra cost.

Storm Season and Timing

San Antonio's storm season runs roughly from March through October, with hail and high-wind events peaking in spring and early summer. Even as late fall approaches, we're still seeing active weather — recent high wind warnings across the Guadalupe Mountains region remind us that storm damage doesn't follow a neat calendar. If you had hail damage earlier this year and your claim felt light, there's still time to pursue a supplement — but every week you wait makes the process harder.

Choosing a Contractor Who Handles Supplements Right

Not every roofing company knows how to navigate the insurance process. The ones that do will offer to review your adjuster's estimate at no charge, identify the gaps, and handle the supplement paperwork directly with your carrier. They won't ask you to pay the difference out of pocket — because the difference should come from your insurance company.

Look for a contractor who is locally licensed, has been through multiple San Antonio hail seasons, and can show you examples of successful supplements they've filed. Storm chasers who blow into town after a major event rarely stick around long enough to fight for your supplement.