Hail Damage Roof Inspection in St. Louis: Signs, Claims, and Next Steps

Updated August 26, 2026 | Lane House Roofing & Exteriors, St. Louis, MO

Direct Answer

A hail damage roof inspection in St. Louis is a slope-by-slope professional assessment that documents bruising, granule loss, and cracked shingles after a storm. Because hail damage is often invisible from the ground and insurance filing windows are limited, homeowners should schedule a free inspection within weeks of any storm dropping hail an inch or larger.

TL;DR

• Louis has logged 261 hail reports within 10 miles of downtown since 2004, including the costliest US hailstorm ever in 2001 [1] [2]
• Bruising is the damage that matters most, and it’s invisible from the ground
• A 10-minute check of gutters, AC fins, and other soft metals reveals whether hail hit your roof
• Hidden damage surfaces months later, after freeze-thaw cycles widen internal fractures
• Missouri filing windows commonly run one to two years from the storm date, and Missouri has no matching law [3] [4]
• Widespread bruising or a roof past its mid-teens usually means replacement, ideally with Class 4 shingles

One liner: Hail damage hides, claim windows close, and one free inspection settles both problems.

Key Numbers

Figure	Value	Source
Hail reports within 10 miles of St. Louis since 2004	261	NOAA storm data [1]
Largest hailstone recorded near St. Louis	4.50 inches	NOAA storm data [1]
Costliest US hailstorm, April 10, 2001, St. Louis area	Over $2 billion	Missouri Climate Center [2]
Average hail frequency in Missouri	2 to 3 events per year	Missouri Climate Center [2]
Hail size that damages heavy composite shingles	1.25 inches and up	Missouri Climate Center [2]
Typical Missouri claim filing window	Roughly 1 to 2 years, varies by policy	III guidance [3]
Class 4 impact test	2-inch steel ball, dropped twice	UL 2218 [5]

Why St. Louis Roofs Take a Beating From Hail

In short: St. Louis sits in one of the most active hail zones in the country, with 261 recorded hail reports within 10 miles of the city center since 2004. If you’ve owned a home here for more than a few years, your roof has almost certainly been hit.

Picture a spring evening in South County. The sky turns that odd green-gray, the sirens hum, and for ninety seconds your driveway sounds like a popcorn machine. You sweep up a few quarter-sized stones, look up at the roof, and see nothing wrong. So you move on. Six months later, there’s a stain spreading across the bedroom ceiling.

That gap between “looks fine” and “is fine” is why a hail damage roof inspection in St. Louis matters so much. Our region gets hammered. NOAA storm data shows 261 hail reports within 10 miles of downtown St. Louis since 2004, with the largest stone measuring 4.50 inches, bigger than a grapefruit [1]. The most expensive hailstorm in American history rolled right through here on April 10, 2001, causing more than $2 billion in damage, most of it in the St. Louis area [2].

On average, Missourians see hail two to three times a year [2]. Most of it is small. But it only takes one storm with stones above an inch to bruise shingles across an entire neighborhood, and our peak season runs from March through June, when supercell thunderstorms track along the I-70 and I-55 corridors. The hail that hit St. Louis County in April 2026 was quarter-sized, which is right at the threshold where shingle damage starts becoming a real possibility [1].

None of this means your roof is ruined. It means the odds are good that at some point, hail has left a mark on it that you can’t see from the yard. The rest of this guide shows you what those marks look like, how to check safely, and what to do if you find something.

Signs of Hail Damage on Shingles

In short: The classic signs are dark bruise marks, fresh granule loss, and cracks scattered randomly across the roof. Bruising is the one most homeowners miss because the shingle can look intact while the mat underneath is fractured.

Hail damage on asphalt shingles comes in three main forms, and only one of them is easy to spot.

Cracks and splits are the obvious one. A big stone, usually 1.5 inches or larger, can split a shingle outright or knock a tab loose, especially when wind drives it in at a steep angle.

Granule loss is next. Granules are the sandpaper-like coating that shields the asphalt from UV light. Hail knocks them off in concentrated patches, and they end up in your gutters and at the bottom of your downspouts. A handful of granules after a big storm is worth noting. A gutter full of them is a red flag.

Bruising is the sneaky one. Think of a bruised apple. The skin looks fine, but press gently and the flesh underneath gives way because it’s been crushed. A hail bruise works the same way: the granule surface may hold, while the fiberglass mat inside the shingle is fractured. That fracture is where waterproofing quietly fails over the following months. Bruises show up as soft, dark, dime-to-quarter-sized spots that feel spongy under light finger pressure.

The pattern matters as much as the marks. Hail is random. It peppers a slope with impacts in no particular order, and it hits your vents, flashing, and gutters at the same time. Wind damage tells a different story: it creases, lifts, and removes shingles, starting at the ridges and edges where gusts pry hardest on the tabs. St. Louis storms often deliver both at once, and a thorough claim covers both. Damage that follows a neat, orderly pattern usually has a cause other than hail.

Hail Damage vs Normal Wear and Tear

This distinction decides insurance claims, so it’s worth getting right.

What you see	Hail damage	Normal aging
Pattern	Random impacts across the slope	Uniform, worst on sun-facing slopes
Granule loss	Sudden, in distinct spots or patches	Gradual, spread evenly over years
Marks	Round bruises and dents, soft to the touch	Blisters (small raised pops), brittle edges
Timing	Appears right after a storm	Creeps in over 10 to 20 years
Company it keeps	Dented gutters, vents, and AC fins	None; metals stay clean

Blistering is the look-alike that trips people up. Blisters come from heat and manufacturing quirks, they pop outward, and insurers know the difference on sight. An inspector who can tell a blister from a bruise saves you from filing a claim that goes nowhere.

Hail Damage on Metal Roofs and Other Materials

Metal roofs shrug off most hail, and dents alone are often cosmetic rather than functional. The trouble spots are seams, fasteners, and protective coatings, where an impact can open a path for water or start corrosion. Wood shakes split along the grain when struck, and hail larger than about 1.25 inches can damage even heavy composite and wood shake shingles [2]. Tile and slate crack outright, which at least makes the damage easy to find.

The 10-Minute Ground Check: How to Look for Hail Damage Without a Ladder

In short: Walk your property and inspect the soft metals: gutters, downspouts, AC fins, vents, and window wraps. If hail dented the aluminum around your house, it hit your shingles too. Photograph everything with timestamps.

You don’t need to climb anything to gather solid evidence. Inspectors call the dents on your home’s soft metals “witness marks,” because aluminum and thin steel record every impact that asphalt hides. If the metal took a beating, the roof did too.

Here’s the walk-around, in order:

1. Gutters and downspouts. Look along their length at a low angle so dents catch the light. Check inside the gutter for a layer of loose granules.
2. Downspout splash blocks. A gritty, sand-like wash-out at the base means granules are leaving your roof in volume.
3. AC condenser fins. Run your eyes (not your fingers, the fins are sharp) across the unit’s sides. Flattened or peppered fins are a hail signature adjusters trust.
4. Window wraps, screens, and sills. Aluminum wraps dent easily and face the same sky your roof does.
5. Siding and trim. Vinyl can crack or hold circular scuff marks, especially on the storm-facing side.
6. Vent caps and flashing you can see from the ground. Binoculars help here. Dented caps mean the field of the roof took hits.
7. Deck rails, fences, and the mailbox. Painted wood and metal show fresh chips and dings that date the storm.
8. The yard itself. Shredded leaves and stripped twigs right after a storm tell you the hail came down hard, not soft.
9. Inside the house. Ceiling stains, attic drips, or damp insulation mean damage is past the checking stage. Skip the rest of the list and call now.

Photograph every find with your phone, up close and at context distance. Timestamps matter later. If you file a claim, dated photos from the week of the storm carry weight, and they cost you nothing to take now [3].

One thing this check can’t do is clear your roof. A clean walk-around lowers the odds of damage, but bruising doesn’t show from the yard, and it’s the failure mode that matters most. Ground clues tell you whether to book an inspection. They don’t replace one.

And please stay off the ladder. Steep pitches, granule-slick slopes, and brittle storm-stressed shingles injure homeowners every year, and nothing you’d find up there is worth it. A professional carries fall protection and knows where to step.

Hail Hit in April, Leak in October: The Hidden Damage Timeline

In short: A hail bruise fractures the shingle’s internal mat while the surface looks normal. Moisture works into the fracture, St. Louis freeze-thaw cycles pry it wider, and the leak arrives months later, long after most homeowners stopped thinking about the storm.

Remember the ceiling stain from the start of this guide? Here’s how it got there.

When a hailstone bruises a shingle, the fiberglass mat inside fractures even though the granule surface holds together. That fracture is small, dry, and invisible in week one. Then the sequence starts. Rain wicks into the crack. Summer heat expands it. Come December, trapped moisture freezes, and ice is a patient crowbar: each freeze-thaw cycle, and St. Louis averages dozens per winter, pries the fracture a little wider. By spring, water has a path to the decking. The October stain was an April bruise all along.

Granule loss runs on a slower version of the same clock. Every patch of lost granules exposes bare asphalt to UV light, which dries it out and makes it brittle. The roof doesn’t fail that year. It ages three years in one, and it keeps aging fast until it’s replaced. That’s why inspectors treat fresh granule loss seriously even when nothing is leaking: the damage is a lifespan problem before it’s a water problem.

Size determines how much of this happens to your roof. Here’s the honest scale:

Hail size	Compared to	Typical roof impact
1/4 inch	Pea	Little to no damage on most roofs [2]
3/4 inch	Dime	Dents soft metals and cars; marginal shingle risk [2]
1 inch	Quarter	Bruising possible, especially on older shingles
1.25 inches	Half dollar	Can damage even heavy composite and wood shake shingles [2]
1.75 inches	Golf ball	Widespread bruising, cracks, and split shingles likely
2+ inches	Hen egg and up	Severe damage; stones this size smash car windows [2]

Two footnotes to that table. First, wind changes everything: a one-inch stone driven sideways at 50 mph hits harder than a larger stone falling straight down. Second, your roof’s age moves the thresholds. Fifteen-year-old shingles bruise at sizes new ones shrug off.

The reason hidden damage deserves urgency isn’t the leak. It’s the clock. Insurance claims run on filing windows measured from the storm date, not from when you noticed the problem. A homeowner who discovers an April bruise in October is fine. One who discovers it after the window closes may be paying for a roof that insurance would have covered [3]. The next two sections cover both halves of that: what an inspection finds, and how the claim works.

What a Real Hail Damage Inspection Includes (And What a Door-Knocker Skips)

In short: A legitimate inspection covers every slope, counts impacts in test squares, audits all soft metals and rooftop accessories, and produces a photo-documented written report. If someone offers you a verbal verdict from the driveway, that’s not an inspection.

A professional hail damage inspection in St. Louis has a standard anatomy, and knowing it helps you judge anyone who shows up at your door.

Every slope gets walked. Hail rarely hits all sides of a roof equally. Wind drives it into one or two slopes hardest, so an inspector assesses each one separately rather than sampling the easy-to-reach section over the garage.

Impacts get counted, not eyeballed. The industry tool is the test square: a marked 10-by-10-foot area on each slope where the inspector counts and chalks every hail impact. Adjusters use the same method, and the count per square is what turns “some damage” into a number an insurance company acts on. Eight or more impacts in a test square is a common benchmark for a slope needing replacement, though carriers vary.

The whole system gets audited. Shingles are the headline, but pipe boots, ridge vents, flashing, skylights, chimney caps, and gutters all take hail and all end up on a proper claim. Cracked pipe boots alone cause a surprising share of post-storm leaks. In severe hail events, the inspection extends below the shingles too: impacts can soft-spot or puncture the roof decking itself, and a proper assessment flags compromised decking so it gets replaced during the build rather than discovered mid-project.

Everything gets documented. A legitimate inspection ends with a written report: dated photos of each finding, a slope-by-slope damage map, and impact counts. That report becomes the backbone of your insurance claim, which is the subject of the next section. A verbal “yeah, you’ve got damage” from the driveway is worth what it costs.

A word about the trucks that appear after big storms. Every major hail event pulls out-of-town crews into St. Louis neighborhoods, knocking doors and promising fast roofs. Some are fine. Enough aren’t that the pattern has a name: storm chasers. The protection is simple. Work with a company that has a local address you can drive to, a review history you can read, and a warranty that will still mean something in five years.

That’s the standard we hold ourselves to. Lane House Roofing & Exteriors has been based in South County on Lemay Ferry Road for more than 20 years, with an A+ BBB rating and Owens Corning Preferred Contractor status. If a storm has come through your neighborhood, we’ll inspect your roof, document what we find, and give you a free, no-obligation estimate along with straight answers about whether your damage is worth pursuing.

How Hail Damage Insurance Claims Work in Missouri (And the Three Traps to Know)

In short: Document the damage, check your policy’s filing window, file the claim, and have your contractor present when the adjuster inspects. The Missouri-specific traps are the filing deadline, the state’s lack of a matching law, and the gap between replacement cost and actual cash value.

The claim itself is a five-step sequence:

10. Get the damage documented. Your inspection report, with dated photos and impact counts, is the foundation. Claims built on “I think the storm got us” stall. Claims built on documentation move.
11. Read your policy before you call. Find your deductible, your filing window, and whether you carry replacement cost or actual cash value coverage. Ten minutes here prevents surprises later.
12. File the claim with your carrier, referencing the storm date. Your dated photos from the week of the storm earn their keep now.
13. Meet the adjuster, with your contractor there. The insurer sends an adjuster to verify the damage. When your roofer walks the roof alongside them, findings get compared chalk mark to chalk mark on the shingles instead of disputed by letter afterward. This one habit resolves more claim friction than anything else.
14. Review the settlement and schedule the work. Once scope is agreed, you pay your deductible and the project moves forward.

Now the three traps.

The window. Missouri homeowners policies commonly allow roughly one to two years from the storm date to file a hail or wind claim, but the timeline varies by carrier and policy, so check yours rather than assuming [3]. Pair this with what hidden damage does: a bruise discovered late in the window is still claimable. One discovered after it closes is your bill.

No matching law. Missouri doesn’t require insurers to pay for matching materials. If only one slope is damaged and your shingle color has been discontinued, the carrier can lawfully pay to fix that slope alone, leaving a visible patchwork [4]. Whether that outcome applies to you depends on your policy language and your damage pattern, and it’s one of the questions worth asking your carrier directly.

RCV vs ACV. Replacement cost coverage pays what a new roof costs. Actual cash value pays that number minus depreciation, and on a 15-year-old roof, depreciation can swallow half the value. Same storm, same damage, thousands of dollars apart. Your policy’s declarations page says which one you have.

One more path worth knowing: the supplemental claim. If your payout arrives and it doesn’t match the documented damage, the process isn’t over. Carriers accept supplemental claims when additional covered damage is documented after the initial scope, and a contractor’s impact-by-impact report is exactly the evidence that supports one. An undersized first offer is a common frustration, not a final answer.

Two honest notes to close. Hail is generally treated as an act of nature rather than a fault event, but how a claim affects any individual premium depends on your carrier and history, so we won’t promise you otherwise. And none of this is insurance or legal advice. It’s the pattern we’ve watched play out on St. Louis roofs for two decades, shared so the process doesn’t catch you flat-footed.

When Hail Damage Means a New Roof (And When It Doesn’t)

In short: A handful of impacts on one slope of a young roof is repair territory. Widespread bruising, high impact counts, or damage on a roof past its mid-teens usually points to replacement, and the insurance claim is often what makes replacement affordable.

There’s no single number that settles repair versus replace, but the pattern is consistent enough to map.

Repair territory looks like this: a young roof, damage confined to one slope or a few scattered shingles, low impact counts in the test squares, and your shingle still in production. Swapping a dozen shingles on a five-year-old roof is a sound outcome, and any contractor who pushes a full replacement on that picture deserves your skepticism.

Replacement territory looks like this: bruising spread across multiple slopes, impact counts at or above the benchmarks adjusters use, granule loss aging the whole surface at once, or a roof already 15-plus years old taking meaningful damage. Hail doesn’t hit one shingle politely. When the counts are high on one slope, the whole system took the storm, and a patch buys you three quiet years on a roof that’s failing on schedule anyway.

Age tips the borderline cases. So does the matching problem from the last section: if your color is discontinued, a “cheap” slope repair carries a visible cost every time you pull into the driveway.

Full transparency on where we stand: Lane House specializes exclusively in complete roof replacements, not patch repairs. That’s a deliberate choice about doing one thing at a high standard, and it means our incentive runs toward honesty. If our inspection finds a dozen bruised shingles on an otherwise healthy roof, we’ll tell you a repair is what you need, point you in the right direction, and ask you to remember us in fifteen years. If the damage genuinely calls for replacement, you’ll see exactly why in the documentation.

If you do replace, replace smarter. Class 4 impact-resistant shingles carry the UL 2218 rating, which means they survived a two-inch steel ball dropped twice on the same spot without cracking, the toughest standard in the test [5]. On a St. Louis roof, that’s not a luxury spec. It’s an answer to the storm that will come. No shingle is truly hail proof, but Class 4 products shrug off stone sizes that bruise standard shingles, and many insurers offer premium discounts for installing them, though the discount and its size vary by carrier, so ask yours before you order.

The claim window makes the timing decision for you. Inside it, your deductible may be the bulk of your out-of-pocket cost for a full replacement. Outside it, the entire roof is on you. That gap is the practical argument for getting the inspection now rather than when the ceiling stains.

Frequently Asked Questions

Does my roof have hail damage if I can’t see anything wrong?

Possibly. Hail bruising fractures the shingle’s internal mat while the surface looks normal, so a roof can be damaged and show nothing from the ground. Check your soft metals for dents, and if hail an inch or larger fell on your neighborhood, book a professional inspection even if everything looks fine.

How soon after a hail storm should I get my roof inspected?

Within a few weeks is ideal. Fresh damage is easier to distinguish from aging, your photos carry more weight with dated timestamps, and an early start protects your claim filing window, which commonly runs one to two years from the storm date in Missouri but varies by policy.

What size hail damages a roof?

Damage risk starts around one inch, the size of a quarter, especially on older shingles. Hail of 1.25 inches can damage even heavy composite and wood shake shingles, and golf ball size or larger tends to cause widespread bruising and cracks. Wind speed and roof age move those thresholds in both directions.

Is hail damage worth claiming on insurance?

Usually yes when damage is widespread, because the claim can cover most of a replacement and hidden bruising worsens with time. For a few scattered impacts on a young roof, a small repair may cost less than your deductible, and a documented inspection is what tells you which situation you’re in.

Do I need a new roof after hail, or can it be repaired?

It depends on spread and age. Damage confined to one slope of a young roof is often repairable, while bruising across multiple slopes, high impact counts, or a roof past its mid-teens usually points to replacement. An honest inspection report shows you the evidence either way.

How much does a hail damage roof inspection cost in St. Louis?

Reputable local roofers, including Lane House Roofing & Exteriors, inspect hail damage free of charge with no obligation. You get documented findings and a written estimate, and you decide from there. Be cautious with anyone who charges for a basic storm inspection or pressures you to sign on the spot.

How can I tell hail damage from normal wear?

Hail damage is sudden and random: round bruises and granule loss scattered across a slope, paired with dents on gutters and vents. Normal wear is gradual and uniform, worst on sun-facing slopes, with brittle edges and slow granule loss over years. The dented metals are the fastest tell.

What does hail damage look like on a metal roof?

Mostly dents, which are often cosmetic rather than functional. The concerns worth inspecting are damaged seams, loosened fasteners, and chipped protective coatings, since those can admit water or start corrosion over time.

Will filing a hail damage claim raise my insurance rates?

Hail claims are generally treated as acts of nature rather than fault events, but the effect on any individual premium depends on your carrier, your claim history, and regional storm activity. We can’t promise an outcome, and neither can anyone else; your agent can tell you how your carrier handles weather claims.

One Free Inspection Settles It

There are two versions of the story this article opened with. In the first, the homeowner sweeps up the hail in April, sees a normal-looking roof, and finds the stain in October, maybe inside the claim window, maybe not. In the second, they spend ten minutes on the ground check that week, notice the dented downspout, and book an inspection in May. The bruising gets documented while the storm date is fresh, the claim goes through with a contractor standing next to the adjuster, and the new roof goes on before the first freeze ever gets its crowbar into the mat.

Same storm. Same roof. The only difference is the inspection.

If hail has come through your neighborhood this season, or you’ve noticed dents on your gutters and never followed up, let’s settle the question. Lane House Roofing & Exteriors offers a free, no-obligation hail damage inspection and estimate anywhere in the greater St. Louis metro. We’re based in South County and serve Mehlville, Oakville, Affton, Fenton, Webster Groves, and the surrounding communities, so we’re close, and we’ve been on St. Louis roofs for more than 20 years.

Call (314) 845-2166 or request your free inspection online. Ten minutes on the phone now beats a ceiling stain in October.

Definition Bank

Term	Plain-English definition
Hail bruising	A soft, dark impact spot where the shingle surface held but the mat inside fractured.
Granule loss	The shedding of a shingle’s protective mineral coating, which exposes asphalt to UV damage.
Fiberglass mat	The structural core of a modern asphalt shingle; fracturing it ends the shingle’s waterproofing.
Test square	A marked 10-by-10-foot roof area where inspectors count hail impacts to standardize damage.
Witness marks	Dents on gutters, vents, and other soft metals that prove hail struck the property.
RCV vs ACV	Replacement cost value pays for a new roof; actual cash value subtracts depreciation first.
Matching law	A state rule requiring insurers to pay for matching undamaged materials. Missouri has none.
Class 4 (UL 2218)	The highest impact-resistance rating for shingles, earned by surviving a 2-inch steel ball drop test.

Entity Cards

Lane House Roofing & Exteriors

Property	Value
Location	3814 Lemay Ferry Rd, St. Louis, MO 63125 (South County)
Phone	(314) 845-2166
Service area	Greater St. Louis metro, including Mehlville, Oakville, Affton, Fenton, Webster Groves
Credentials	A+ BBB rating, Owens Corning Preferred Contractor, licensed and insured
Specialization	Complete roof replacements and exterior renovations; free inspections and estimates

UL 2218 Class 4 Rating

Property	Value
What it tests	Shingle survival against a 2-inch steel ball dropped twice on the same spot
What passes	No cracking or rupture of the shingle mat
Why it matters in St. Louis	The metro sits in an active hail corridor with regular 1-inch-plus events
Insurance angle	Many carriers discount premiums for Class 4 roofs; amounts vary by carrier

Sources

15. NOAA Storm Events data via StormerSite, hail reports within 10 miles of St. Louis, MO, accessed August 2026.
16. Missouri Climate Center, University of Missouri, hail climatology and damage thresholds, accessed August 2026.
17. Insurance Information Institute, guidance on documenting and filing homeowners storm claims, accessed August 2026.
18. United Policyholders, state-by-state guidance on matching coverage for storm repairs, accessed August 2026.
19. UL 2218 impact-resistance standard, as summarized by the Insurance Institute for Business & Home Safety, accessed August 2026.