10 Signs You Need a New Roof
A roof rarely fails all at once. It drops hints first. Here are ten honest, easy-to-read warning signs we see across St. Louis and St. Charles County - and straight guidance on when a repair will do and when it's time to replace.
Repair or replace? Read the roof first
Not every problem means a full tear-off. A few cracked shingles, a single failed pipe boot, or a small flashing gap are usually quick fixes. The decision tips toward replacement when the damage is widespread, the roof is near the end of its life, or you keep paying for the same leak twice.
Missouri is hard on roofs. Spring and summer bring hail and straight-line wind, summers run hot and humid, and our freeze-thaw winters work loose every weak seam. Those cycles age a roof faster than the brochure suggests. The signs below are what our crews look for on every visit - some you can safely spot from the ground, others need a trained eye. When you see several at once, that's the roof telling you the patch-and-pray days are over.
Lean toward repair
Isolated, recent, and small. One leak, a handful of wind-lifted shingles, or a worn flashing on an otherwise sound, mid-life roof.
Lean toward replace
Old, widespread, or repeat trouble. Several signs together, an aging roof, or the third repair to the same spot point to a new roof.
What a failing roof looks like
Work through these one by one. A single item might just need attention; several together usually mean the roof itself is the problem.
1. Age - 20 years or more
A standard asphalt shingle roof in our climate typically lasts 15 to 25 years. If yours is pushing two decades, it's living on borrowed time even when it still looks decent. Knowing the install date is the single most useful fact - see how long a roof lasts for what to expect by material.
2. Curling or buckling shingles
Shingles that cup at the edges or buckle in the middle have lost their flexibility and seal. Curling lets wind get underneath and water sneak past - and once it spreads across slopes, it's an age-and-wear signal that usually means replacement, not patching.
3. Missing or broken shingles
A few gone after a storm is repairable. But bare spots scattered across the roof, shingles you can't color-match anymore, or tabs littering the yard after every wind event mean the field has gotten brittle - and the protective layer is no longer doing its job.
4. Granules in the gutters
Those sandy black grains are the shingle's sunscreen. Finding piles of them in gutters and at the base of downspouts - or seeing dark, shiny bald patches on the roof - means the asphalt mat is now exposed and aging fast. Heavy granule loss is a strong end-of-life sign.
5. Leaks & ceiling stains
Brown rings on the ceiling, damp spots in the attic, or peeling paint near the roofline mean water is already inside. One fresh stain may trace to a single fixable flaw; multiple stains in different rooms point to a roof that's letting go in several places at once.
6. A sagging roofline
A roof should read straight and crisp from the curb. Any dip, wave, or visible sag in the deck or ridge is serious - it points to soaked decking or compromised structure underneath. This is one to act on quickly, and it almost always means replacement plus deck repair.
7. Daylight in the attic
Head up to the attic on a sunny day with the lights off. Pinpricks of daylight through the roof boards - or wood that's dark, soft, or damp to the touch - mean the deck itself is breached. If light gets in, so does rain, and that's a roof to replace before the rot spreads.
8. Moss, algae & rot
Our humid summers grow moss and dark algae streaks on shaded north slopes. A light streak is mostly cosmetic, but thick moss holds moisture against the shingles and lifts their edges, accelerating decay. Where it's paired with soft, rotting wood, the damage runs deeper than the surface.
9. Climbing energy bills
A tired roof and poor attic ventilation let conditioned air escape and summer heat pour in. If your cooling and heating costs keep creeping up with no other explanation, a failing roof system may be the leak you can't see - and a new, properly ventilated roof often pays part of itself back.
10. Failing flashing
Flashing is the metal that seals around chimneys, vents, skylights, and valleys - the places roofs leak first. Rusted, cracked, lifted, or caulk-smeared flashing is a classic source of slow leaks. On a younger roof it's a repair; on an older one it's often the last straw before replacement.
When repair is the smart call
One leak, a few wind-lifted or storm-broken shingles, a single worn flashing, or minor gutter trouble - on a sound roof with years of life left. A targeted fix protects your budget and buys time.
When replacement wins
Several signs at once, a roof near 20 years, a sag in the deck, daylight in the attic, or the same leak you've patched again and again. At that point new beats repeat repairs on cost and peace of mind.
How to make the call without guessing
The honest answer depends on three things: how old the roof is, how far the damage has spread, and whether you're fixing the same problem more than once. One isolated issue on a mid-life roof is a clear roof repair. Widespread wear on an aging roof is a clear roof replacement.
The trouble is that the middle ground is where most homeowners get steered wrong - sold a costly replacement they didn't need, or a repair that won't hold. That's why we never quote a roof from the driveway. A free, photo-documented roof inspection gives you the facts to decide, and we'll tell you plainly if a repair is all you need.
Spotting these signs after a recent storm?
If hail or high wind has rolled through your neighborhood, the damage above may qualify for an insurance claim - and we work directly with your carrier to make the case. Don't let a fixable problem become an out-of-pocket one.
From warning sign to clear answer
A few simple steps turn a vague worry into a confident decision - and protect your home in the meantime.
Do a safe ground check
Walk the perimeter and look up. Note curling or missing shingles, granules in the gutters, sags in the line, and any moss. Glance in the attic for daylight or stains. Keep both feet on the ground - never climb a roof yourself.
Count the signs
One isolated problem usually means a repair. Three or more from the list above, especially on an older roof, points firmly toward replacement. Write down what you see so nothing gets forgotten.
Book a free inspection
Have a qualified roofer document the roof up close with photos before anything is decided. Our inspections are free, thorough, and come with an honest recommendation - repair or replace, whichever the roof actually needs.
Choose with confidence
With clear evidence in hand, you decide. If it's a fix, we fix it. If it's time for a new roof, we'll walk you through materials, warranties, and financing on qualifying projects.
Why a small sign turns into a big bill
Roofs fail from the outside in. The longer the early signs go unaddressed, the more they cost to put right.
Water finds the deck
A tiny gap lets moisture into the decking, where it spreads quietly. What started as a cheap shingle repair becomes new sheathing - and sometimes framing.
Mold & insulation loss
Persistent attic moisture mats down insulation and grows mold. Now the repair touches air quality and energy bills, not just the roof.
Interior damage
Left long enough, leaks reach drywall, paint, flooring, and belongings. Catching the roof early keeps the problem on the roof - where it's cheapest to solve.
Signs you need a new roof, answered
Get a straight answer on your roof
A free, no-pressure inspection tells you exactly where your roof stands - repair or replace - with photos and an honest recommendation.