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Supplements: the claim is not over when the cheque arrives
The adjuster who inspects your roof is hired and paid by the insurance company.
They stand in the driveway, look up at the slope, and ask a question you have no reason to know the answer to: this looks like wear and tear to me — which of these marks is hail?
That question is the whole claim. Knowing which mark is hail, documenting it, and defending it when the answer is challenged is what a licensed public adjuster does.
Two things worth knowing before you call. Your deductible is yours to pay on any claim, whether or not you have help with it. And the fee for that help is set in writing before any work begins.
A supplement is a request to revisit the scope of an already-paid claim because damage or work was found that the first estimate did not include. Carriers process them routinely — it is a normal part of claims handling, not an unusual or hostile request — and most homeowners have never heard the word.
Why first estimates come in short
A first estimate is written from one inspection, often quickly, sometimes from the ground. It captures what was obvious that day. What it misses tends to be the same categories every time: flashing and valley detail, transitions and penetrations, code-required items, and elevations that were not walked.
None of that implies bad faith. It implies that one visit produced one scope, and nobody has yet offered a second.
What a supplement actually needs
Documentation tied to the original estimate line by line: photographs of the omitted items, measurements, and where relevant the code provision or manufacturer requirement that makes the item necessary rather than optional. A supplement that says the estimate was too low goes nowhere; one that says these eleven items are missing and here is each of them is a different document.
Keep everything the carrier sent. The original estimate is the thing any supplement is argued against, and you cannot reconcile line items you do not have.
Timing still matters
Supplements are usually raised while the work is being scoped or performed, when the roof is open and the evidence is visible. Once the repair is complete and the evidence is gone, the argument gets substantially harder.
The policy's limitation clause continues to run throughout, so a supplement raised in month eleven is a different proposition from one raised in month three.
Your claim clock
Illinois sets no statutory deadline for filing. The limit is your policy's suit limitation clause, commonly about one year from the date of loss, and your policy's terms control. Under 215 ILCS 5/143.1 that period is suspended between your proof of loss and a formal denial.
Common questions
I already cashed the cheque. Have I accepted the settlement?
Depositing a claim payment does not usually close your right to a supplement, though a signed release can. Read anything you are asked to sign before you sign it, and be careful with documents described as final.
How long after payment can a supplement be raised?
There is no fixed window in Illinois statute — your policy's suit limitation clause is the outer limit. Practically, the earlier the better, because supplements are easiest to substantiate while the roof is open and hardest once the work is finished.
Will asking for a supplement restart the whole claim?
No. A supplement addresses specific scope on the existing claim rather than reopening the coverage decision. It is a normal transaction in claims handling.
What if the carrier refuses the supplement?
Then you are back to a documented scope dispute, which is the same argument as an underpaid first estimate. The documentation assembled for the supplement is what that argument runs on.
Prefer not to call? Text 847-208-8380 or email tom.jtpa@gmail.com
Hail claim help by county: Cook County · DuPage County · Kane County · Lake County · McHenry County · Will County
Start here: Hail damage: start here
Sources: Where these statements come from