Repair or Replace? How to Know When It’s Time for a New Shingle Roof

An aged roof with deteriorating shingles and a damaged chimney requiring urgent repairs.

Your roof is one of your home’s most important lines of defense—but even the most well-installed shingle roofs don’t last forever. So how do you know when a quick repair will do the trick, and when it’s time to consider a full replacement?

Here’s a breakdown of key signs to look for, and how to make the right call for your home.

1. Age of Your Roof

Asphalt shingle roofs typically last 20 to 25 years, depending on the materials used, installation quality, and weather exposure. If your roof is nearing or past that age range, replacement may be the safer long-term investment—even if the roof looks okay on the surface.

2. Visible Shingle Damage

If you're seeing:

• Cracked, curling, or missing shingles

• Bald spots where granules have worn off

• Dark streaks or algae growth

  
  

...those are signs your shingles are no longer protecting your home effectively. Minor damage in a small area? You might just need repairs. Widespread wear? Time to start planning for replacement.

3. Leaks or Water Damage

A leak doesn’t always mean full replacement—but it’s a red flag. If you’re spotting water stains on ceilings or walls, or seeing mold or mildew in the attic, it’s time for an inspection. If leaks are isolated, they can usually be patched. Multiple leaks or water intrusion over a large area may indicate failing underlayment or decking, which calls for replacement.

4. Storm Damage

After a severe storm—especially with high winds or hail—it’s critical to have your roof inspected. Some storm damage is easy to miss from the ground but can compromise the integrity of your system. Insurance may cover either repairs or a full replacement, depending on the extent of the damage.

5. Roof Sagging or Structural Issues

If your roofline is starting to sag or dip, that’s a serious issue. It may point to structural damage or trapped moisture beneath the shingles. In these cases, a full replacement (and sometimes deck repair) is usually required.

So... Repair or Replace?

• Choose Repair if the damage is minor, isolated, and your roof is under 10–20 years old.

• Choose Replacement if the damage is widespread, your roof is aging, or there are multiple underlying issues.

  
  

Need a Professional Opinion?

At Gulf South Roofing, we offer honest, thorough roof inspections to help you make the best decision for your home. Whether it’s a quick shingle fix or a full roof replacement, we’ll guide you through the process with transparent pricing, quality workmanship, and local expertise.

Serving the Mississippi Gulf Coast and surrounding Louisiana areas—contact us today to schedule your roof inspection.

Buying a home or needing a report for your insurance? Ask us about pricing on our inspection reports!

Request a Free Estimate