TL;DR
After wind damage, repair usually makes sense when the damage is localized, a few missing or lifted shingles on a roof that still has life left. Lean toward replacement when the damage is widespread (roughly a third of the roof or more), the deck underneath is hit, the roof is near the end of its life, or repairs would run more than about 25% of a new roof. Age matters: a 5-year-old roof with a few missing shingles gets fixed; a 20-year-old one that keeps losing tabs is telling you it’s time.
After a windstorm strips shingles off your roof, the real question isn’t whether to act, it’s whether a repair will do or whether you’re better off replacing. Get that call right and you don’t pay twice. The answer comes down to a few things: how much of the roof is damaged, how old it is, and whether the deck underneath took a hit. Here’s where the line falls between a repair and a replacement, and how to know which side of it your roof is on.
Should you repair or replace after wind damage?
It depends on how much is damaged and how old the roof is. Repair when the damage is localized, a few missing or lifted shingles on a roof that’s otherwise sound and still has years left. Replace when the damage is widespread, the deck is affected, or the roof is near the end of its life anyway. Two rules of thumb help: if more than about a third of the roof is damaged, or repairs would cost more than roughly 25% of a new roof, replacement is usually the smarter money.
The trap is patching a roof that’s already near the end. You pay for the repair, then pay again for the replacement a year later. On a younger roof with isolated damage, though, a repair is exactly right.
Repair or replace: how to tell
Run your situation through these factors, and if most point the same way, that’s your answer:
| Factor | Leans repair | Leans replace |
|---|---|---|
| Extent of damage | A few shingles, one area | Roughly a third of the roof or more |
| Roof age | Under about 15 years | Near or past 15 to 20 years |
| Deck underneath | Sound and dry | Wet, rotted, or exposed |
| Repair cost | Well under 25% of a new roof | Over about 25% of replacement |
| History | First real damage | Losing tabs every storm |
When does wind damage mean a full replacement?
When it’s widespread, structural, or the roof was already near done. If wind lifted or tore shingles across a large part of the roof, if the decking underneath is wet or rotted, or if the roof is already 15 to 20 years old, a replacement is usually the better long-term call. Damaged decking is the big one: reaching it means pulling the shingles off, so a deck repair effectively becomes a roof replacement anyway.
Repeated damage is another signal. If your roof loses tabs in every San Antonio windstorm, the shingles have lost their seal and their flexibility, and patching the latest spot won’t stop the next one. That pattern usually means the roof is worn out, not just damaged.
When is a repair the right call?
When the damage is contained and the roof still has life in it. A handful of missing or lifted shingles, a damaged section over one part of the house, or wind-loosened flashing on a roof under about 15 years old with sound decking, all of that is a roof repair, not a replacement. There’s no reason to replace a good roof over localized damage.
The key is making sure the damage really is localized. Wind damage can look minor from the ground while the seals have broken across a wider area, which is why the repair-or-replace call should follow a proper inspection rather than a guess. A good roofer will tell you honestly when a repair is enough.
How does roof age change the decision?
A lot. Asphalt shingle roofs generally last about 15 to 20 years, so age shifts the math. Under 15 years with isolated damage, repair almost always wins, the roof has plenty of life left to protect. Near or past that range, even moderate wind damage often tips toward replacement, because you’d be investing in a roof that’s close to needing full replacement regardless.
Our guide on how long a roof lasts in San Antonio covers what to expect from different materials in our heat and sun. When you know roughly where your roof is in its lifespan, the repair-versus-replace decision after a storm gets a lot clearer.
Get an honest repair-or-replace assessment
The short version: repair localized wind damage on a roof that still has life left, and replace when the damage is widespread, the deck is hit, or the roof is near the end anyway. The 30% and 25% rules of thumb are a good gut check, but the real decision needs eyes on the roof and an honest opinion, not a sales pitch for the bigger job.
BH Roofing serves greater San Antonio, and our free 27-point roof inspection gives you a straight repair-or-replace answer with the photos to back it up. Schedule your inspection or call (210) 267-9029.
