If you live in Central Illinois, hail season is not a question of if but when. Every year, severe thunderstorms sweep through Morgan County, Sangamon County, and the surrounding region, dropping hailstones that can shred shingles, dent gutters, and compromise your roof’s ability to protect your home. The Illinois hail season typically runs from March through June, and 2026 is shaping up to be no exception. In fact, early forecasts suggest an above-average severe weather season for the central part of the state.

At Campbell Construction, we have been helping homeowners across Central Illinois navigate storm damage for over 25 years. With more than 5,000 completed projects, we have seen firsthand what hail does to roofs in Jacksonville, Springfield, and every community in between. This guide covers everything you need to know about the 2026 Illinois hail season, from understanding the risks to protecting your home and filing an insurance claim.

Severe storm clouds roll across the Central Illinois landscape. Storms like these produce the damaging hail that threatens thousands of roofs each season.

When Does Hail Season Peak in Central Illinois?

The Illinois hail season generally spans from early March through late June, with the highest concentration of damaging hail events occurring in April and May. During these months, the clash between warm, moist air from the Gulf of Mexico and cooler air masses from the north creates the perfect conditions for severe thunderstorms across the Great Plains and Midwest.

Central Illinois sits squarely in what meteorologists call “Hail Alley,” a region that experiences some of the highest frequencies of large hail in the entire country. According to NOAA’s Storm Prediction Center, Illinois averages more than 400 significant hail reports per year, with a substantial portion of those impacting the central corridor from Springfield to Jacksonville and beyond.

That said, hail can strike outside this window. Early-season storms in March and late-season events in July have both produced damaging hail in recent years. The bottom line: if you live in Central Illinois, your roof faces hail risk for at least four months every year.

What Size Hail Actually Damages Your Roof?

One of the most common misconceptions about hail damage is that only large hailstones cause problems. In reality, the threshold for roof damage is lower than most homeowners think. Here is a breakdown of hail sizes and their damage potential:

Pea-sized hail (1/4 inch): Generally does not cause significant roof damage, though it can damage plants and thin metal surfaces.

Marble-sized hail (1/2 inch): Can begin to damage older or already-compromised shingles by displacing protective granules.

Quarter-sized hail (1 inch): This is the threshold where most roofing manufacturers and insurance companies consider damage likely. At this size, hail can crack shingles, dent metal flashing, and damage gutters. One-inch hail is the most common size reported in Central Illinois severe storms.

Golf ball-sized hail (1.75 inches): Causes significant damage to virtually all roofing materials, including impact-resistant shingles. Will crack or puncture standard architectural shingles and can break skylights.

Baseball-sized hail (2.75 inches) and larger: Catastrophic damage. Can punch through roof decking, shatter windows, and destroy siding. Storms producing this size hail have hit Central Illinois multiple times in recent decades.

Hailstones after a severe storm. Even marble-sized hail can begin stripping protective granules from asphalt shingles, leaving your roof vulnerable to leaks.

How to Spot Hail Damage From the Ground

After a hailstorm passes through your area, you do not need to climb on your roof to look for warning signs. In fact, we strongly recommend against climbing on your roof yourself as it is dangerous and can void certain warranty protections. Instead, look for these ground-level indicators that your roof may have sustained hail damage:

Check your gutters and downspouts. Look for dents, dings, or areas where the metal has been deformed. Hail large enough to dent aluminum gutters has almost certainly impacted your shingles as well. Also check for an unusual accumulation of granules in your gutters or at the base of downspouts. These tiny, sand-like particles are the protective coating on asphalt shingles, and excessive granule loss is a telltale sign of hail damage.

Inspect your siding and window trim. Look for dents, chips, or cracks in vinyl or aluminum siding. Check painted wood surfaces for impact marks. Examine window screens for tears or punctures.

Look at outdoor AC units and mailboxes. Metal surfaces on your property act as hail impact indicators. If your air conditioning unit, metal mailbox, or car has visible dents, your roof was hit by the same hailstones.

Examine decks, painted surfaces, and outdoor furniture. Chipped paint on deck railings, dented patio furniture, or marks on wooden fences all point to hail impacts.

Look at your roof from a distance. Using binoculars from across the street, look for dark spots or areas where the shingle color appears inconsistent. These dark patches are often areas where granules have been knocked loose, exposing the darker asphalt underlayer.

Why Acting Fast After a Hailstorm Matters for Insurance

Time is not on your side after a hailstorm. There are several critical reasons why acting quickly is essential for protecting both your home and your insurance claim:

Insurance filing deadlines. Most homeowner’s insurance policies in Illinois require you to file a claim within one year of the date of loss. While that sounds like plenty of time, delays can work against you. The sooner you file, the easier it is to establish a direct connection between the storm and the damage.

Secondary damage compounds quickly. What starts as a few cracked shingles can turn into a full-blown leak within weeks. Water infiltration leads to rotted decking, damaged insulation, mold growth, and interior ceiling damage. None of that secondary damage may be covered if you waited too long to address the initial hail damage.

Contractor availability. After a major hail event, every roofing contractor in the region gets flooded with calls. Homeowners who act quickly get on the schedule first. Those who wait may face delays of weeks or even months, all while their damaged roof continues to deteriorate.

Documentation is easier while damage is fresh. Hail damage on shingles can become harder to identify over time as weathering, UV exposure, and additional storms alter the appearance of the impacts. A prompt roof inspection preserves the clearest evidence for your insurance claim.

At Campbell Construction, we offer free hail damage inspections across Morgan County and Sangamon County. Our team can typically get to your property within 24 to 48 hours of your call. We document everything with detailed photos and measurements that your insurance adjuster needs to process your claim.

What Happens During a Professional Hail Damage Inspection?

If you have never been through a hail damage inspection, knowing what to expect can ease a lot of anxiety. Here is exactly what happens when a Campbell Construction inspector arrives at your property:

Step 1: Ground-level assessment. The inspector begins by walking the perimeter of your home, documenting damage to gutters, downspouts, siding, window screens, and any other exterior surfaces. This establishes the overall severity of the storm’s impact on your property.

Step 2: Roof inspection. The inspector safely accesses your roof and conducts a systematic examination of every slope. They look for the hallmarks of hail damage on asphalt shingles: circular cracks, bruised or soft spots, displaced granules, and exposed fiberglass mat. They also inspect flashing, ridge caps, pipe boots, and vents.

Step 3: Photo documentation. Every area of damage is photographed with close-up detail shots and wider context shots showing the damage location on the roof. These photos become critical evidence for your insurance claim.

Step 4: Detailed report. You receive a comprehensive inspection report that includes all photos, a diagram of the damage locations, measurements of the affected areas, and a professional assessment of whether the damage warrants an insurance claim.

A well-maintained tile roof with chimneys and skylights. Campbell Construction provides detailed photo documentation during every hail damage inspection to support your insurance claim.

Step 5: Insurance guidance. If we determine your roof has hail damage, we walk you through the insurance claims process step by step. We can meet with your adjuster on-site to ensure nothing is missed during their inspection. Our team has handled thousands of insurance claims and knows exactly what adjusters look for.

The entire inspection typically takes 45 minutes to one hour, and it is completely free with no obligation. Whether we find damage or not, you will know the true condition of your roof.

The Insurance Claim Timeline: What to Expect

Filing a hail damage insurance claim can feel overwhelming, especially if you have never done it before. Here is the typical timeline homeowners in Central Illinois can expect:

Day 1: Report the damage. Call your insurance company to report the hail damage. You do not need a contractor’s estimate to file. Simply describe what happened and when. Your insurer will assign a claim number and schedule an adjuster visit.

Days 3 to 14: Adjuster inspection. An insurance adjuster will visit your property to assess the damage. This is when having a knowledgeable roofing contractor present makes the biggest difference. At Campbell Construction, we meet adjusters on-site to ensure every area of damage is identified and documented. Without a contractor present, adjusters may undercount damage or miss areas entirely.

Days 14 to 30: Claim approval and payment. If the claim is approved, your insurance company will issue payment. Most policies pay in two installments: an initial payment (minus your deductible) once the claim is approved, and a depreciation recovery payment once the work is completed. This is standard in Illinois.

Days 30 to 60: Roof replacement. Once your claim is approved and your contractor is scheduled, the actual roof replacement typically takes one to three days depending on the size and complexity of your roof.

Our insurance claims assistance service guides you through every step. We handle the paperwork, coordinate with your adjuster, and ensure you receive the full settlement you are entitled to. As an Owens Corning Preferred Contractor and Duro-Last Certified Installer with Illinois License #104.015328, insurance companies know and trust our work.

Common Myths About Hail Damage (And the Truth)

Misinformation about hail damage is widespread, and believing the wrong thing can cost you thousands of dollars. Let us set the record straight on the most common myths we hear from homeowners across Central Illinois:

Myth: “If my roof is not leaking, it is fine.”
Truth: Hail damage is almost never immediately visible as a leak. Instead, hailstones crack shingles and strip away protective granules, creating weak points that eventually fail. By the time you see a leak inside your home, you are dealing with far more extensive and expensive damage including rotted decking, mold, and insulation damage. The time to act is before the leak, not after.

Myth: “New roofs cannot be damaged by hail.”
Truth: While newer shingles are generally more resilient than aged ones, no standard asphalt shingle is immune to hail damage. Golf ball-sized hail will damage even a brand-new roof. The age of your roof affects how your insurance company calculates depreciation, but it does not prevent damage from occurring.

Myth: “Filing a claim will raise my insurance rates.”
Truth: In Illinois, insurance regulations generally prohibit rate increases for claims resulting from weather events that are declared catastrophes. Hail is a weather event, not a negligence issue. Most homeowners see no rate impact from hail claims. However, not filing a claim means paying for a full roof replacement out of pocket, which typically costs $8,000 to $15,000 or more.

Myth: “I can just patch the damaged areas.”
Truth: Hail does not hit just one section of your roof. If hail struck your property, it impacted the entire roof surface. Patching a few shingles does not address the widespread granule loss and micro-fracturing that occurs across the whole roof. Insurance companies understand this, which is why approved hail claims typically cover a full roof replacement rather than spot repairs.

Myth: “Any roofer can handle my insurance claim.”
Truth: Working with insurance requires specialized knowledge. Storm chasers and inexperienced contractors often leave money on the table or create delays that jeopardize your claim. Campbell Construction has 25+ years of experience working directly with insurance companies and has helped homeowners across Jacksonville, Springfield, and the surrounding areas recover the full value of their claims.

Protecting Your Home Before Hail Strikes

While you cannot prevent hail, you can take steps to minimize the damage and ensure a smooth recovery process:

Schedule a pre-season roof inspection. Having your roof inspected before hail season establishes a documented baseline of its condition. This makes it significantly easier to prove storm damage to your insurance company later. Campbell Construction offers free roof inspections year-round.

Review your insurance policy now. Understand your deductible, your coverage limits, and any exclusions. Know whether your policy covers replacement cost value (RCV) or actual cash value (ACV), as this dramatically affects your payout. If you have questions, our team can help you understand your coverage.

Document your property. Take photos of your roof, gutters, siding, and exterior surfaces before storm season. These “before” photos can be invaluable when establishing damage after a hail event.

Trim trees near your home. Hail-laden branches are heavier and more likely to break. Keeping trees trimmed reduces the risk of branch damage compounding hail damage.

Consider impact-resistant shingles. If your roof is aging and you are planning a replacement, ask about Class 4 impact-resistant shingles. While no shingle is hail-proof, these products are engineered to withstand greater impact forces. Some insurance companies even offer premium discounts for homes with impact-resistant roofing. As an Owens Corning Preferred Contractor, we install the highest-rated impact-resistant products available, backed by our Lifetime Material Warranty and separate workmanship warranty.

Why Central Illinois Homeowners Trust Campbell Construction

When hail hits your home, you need a contractor who understands the local climate, knows the insurance process inside and out, and will be here long after the repairs are complete. Here is why homeowners across Morgan County and Sangamon County choose Campbell Construction:

25+ years serving Central Illinois. Founded in 2000, Campbell Construction is not a fly-by-night operation. We are your neighbors, and we have built our reputation one roof at a time across Jacksonville, Springfield, and every community in between.

10,000+ completed projects. From single-story ranch homes to large commercial buildings, we have the experience to handle any roofing challenge. Our storm damage repair team has restored thousands of roofs after hail events.

Owens Corning Preferred Contractor & Duro-Last Certified. These manufacturer certifications are not given lightly. They require ongoing training, quality standards, and customer satisfaction benchmarks. For you, it means access to the best materials and the strongest warranty protections in the industry.

Lifetime Material Warranty plus workmanship warranty. We stand behind every roof we install with two separate warranties: a Lifetime Material Warranty from our manufacturing partners and our own workmanship warranty. When storm chasers are long gone, Campbell Construction is still here.

Full insurance claims support. We do not just fix roofs. We guide you through the entire insurance process, from the initial claim filing to the final adjuster walk-through. Our goal is to make the process as stress-free as possible while ensuring you receive every dollar your policy entitles you to.

Free inspections with no obligation. We will never pressure you. Our free roof inspection gives you the information you need to make the best decision for your home and your family.