For St. Louis homeowners and the agents who represent them, the roof is one of the highest-stakes items on any listing. It’s the first thing a home inspector flags, the first thing a buyer’s lender’s appraiser notes, and often the first thing that derails a deal at the eleventh hour. In a region that sees as many hailstorms and wind events as ours does, a roof that looks fine from the curb can still be hiding problems that surface during the buyer’s inspection — at exactly the moment you have the least leverage to fix them cheaply.
A quick, informed look at the roof before a home ever hits the MLS can save a listing from a renegotiated price, a delayed closing, or a canceled contract. Here’s what to check, and why it matters.
1. Age of the Shingles
Age is the single biggest factor in how a roof will be treated during the sale — by inspectors, appraisers, and increasingly, by insurance underwriters.
Most three-tab asphalt shingles are rated for 20–25 years; architectural (dimensional) shingles typically run 25–30 years. But the rated lifespan and the real-world lifespan aren’t the same thing, especially in Missouri, where summer heat and repeated hail exposure both shorten a roof’s useful life.
Why this matters more than it used to: several insurers writing policies in the St. Louis metro have gotten stricter about roofs 15–20+ years old, either declining to write a new policy, requiring an inspection first, or moving the roof to actual-cash-value (depreciated) coverage instead of full replacement cost. A buyer who finds out at underwriting — not before — that they can’t insure the roof they’re buying is a buyer who comes back to renegotiate. Pull permit history, ask the seller when the roof was last replaced, and if there’s any uncertainty, get an actual age estimate rather than guessing from the listing sheet.
2. Missing or Damaged Shingles
From the ground or a ladder, look for shingles that are cracked, curling at the edges, or lifting. Curling is often an early sign of age or improper attic ventilation, while cracking can point to storm impact or simply brittle, end-of-life material.
Also check the gutters and the ground around downspouts for granule buildup. Asphalt shingles shed some granules over time, but a heavy accumulation — especially after a known storm — is a sign the shingles have lost the protective layer that shields them from UV and moisture. Bald patches on the shingle surface usually aren’t far behind.
Any shingles that are simply missing are an obvious red flag, but don’t stop there — a single missing shingle after a windstorm often means its neighbors were also weakened, even if they’re still nominally in place.
3. Flashing
Flashing is the metal (or sometimes rubber) material sealing the roof at its vulnerable points — chimneys, vent pipes, skylights, and valleys where two roof planes meet. It’s a small component that causes a disproportionate share of roof leaks.
Look for flashing that’s rusted, bent, pulling away from the surface it’s sealing, or patched with roofing cement instead of properly replaced. Valley flashing is worth a close look in particular, since it channels the most water of any part of the roof and takes the most wear. Flashing problems are also easy to miss from a distance, which is exactly why they tend to surface as a surprise item on a buyer’s inspection report rather than something caught beforehand.
4. Hail and Wind Damage
This one is especially relevant here. Missouri logged dozens of hailstorms over the past decade, and the St. Louis metro has had its share of headline events — including a February 2024 hailstorm that generated thousands of claims in the region in a single day. If a property sits in or near the path of a storm that made local news, assume the roof was affected until proven otherwise.
Hail damage doesn’t always look dramatic. Look for circular “bruises” on the shingle surface — spots where the granules have been knocked loose or driven into the mat — as well as soft spots you can feel when pressing gently on the shingle. Wind damage tends to show up as lifted or missing shingles, especially along ridges and edges where uplift is strongest.
It’s also worth asking the seller directly whether a claim was ever filed, or checking whether the roof shows evidence of a partial repair (a patch of mismatched shingles is a common giveaway). A CLUE report or insurance claims history can surface storm-related claims a seller may not think to mention, and it’s the kind of thing a buyer’s insurer will ask about anyway.
5. Gutters
Gutters aren’t part of the roofing system technically, but they’re diagnostic for it. Sagging sections, gutters pulling away from the fascia, or heavy granule buildup inside them are all signs of a roof under stress. Standing water in the gutters, or water marks on the siding below a downspout, usually means drainage isn’t keeping up — which sends water where it shouldn’t go, including behind the fascia and into the roof deck.
Vegetation growing out of the gutters is a smaller issue on its own, but it’s a signal that maintenance has lapsed generally, which is worth factoring into how closely you look at everything else on this list.
6. Interior Signs of Leaks
Some of the most useful information about a roof isn’t on the roof at all — it’s inside the house. Ceiling stains (even old, painted-over ones), soft or discolored drywall, and peeling paint near the roofline or around chimneys are all signs of past or ongoing water intrusion.
If you can get into the attic, it’s worth the five minutes. Look for daylight coming through the roof deck, water staining on the rafters or sheathing, compressed or discolored insulation, and any musty smell — mold doesn’t need a lot of moisture to take hold, and it’s far more visible from the attic side than from the shingles. A leak that’s been quietly running into the attic for a year can mean deck damage well beyond what a simple shingle repair will fix.
7. When to Bring in a Roofer Before Listing
A visual walk-through by an agent is a useful first filter, but it isn’t a substitute for a professional inspection — and there are specific situations where getting one before listing is worth the time:
- The roof is 15+ years old, or its age is genuinely unknown
- The property is in an area that’s had recent hail or wind events
- You see any of the warning signs above and can’t tell how serious they are
- The seller mentions a past leak, repair, or insurance claim
- The home is headed for a cash offer or an as-is sale, where a bad surprise mid-contract has the least room to be absorbed
Getting ahead of it means the seller decides how to handle a roof issue — repair it, disclose it, price around it — instead of the buyer’s inspector deciding it for them in the middle of a 10-day option period. A roof certification or a clean inspection report in hand at listing time is also a genuinely persuasive marketing point for a listing, particularly for buyers who are already anxious about insurability in this market.