How to Spot Roof Leaks

Roof leaks often start small, but if left unchecked, they can lead to major issues like mold, damaged insulation, and even structural problems.

The good news? Most leaks leave warning signs long before they become a disaster. With a few simple checks, you can catch roof leaks early and protect your home.

Here’s how to spot roof leaks like a pro... before they become a big problem.

Signs of a Roof Leak Inside Your Home

The first clues usually appear inside your house. Watch for:

Water Stains on Ceilings or Walls

• Look for discolored spots, yellow or brown rings, or bubbling paint.
• Even small stains can signal a slow leak above.
  

Musty Odors

• Persistent damp or moldy smells may mean water is trapped in your attic or insulation.
  

Peeling Paint or Wallpaper

• Moisture seeping behind walls can cause paint to bubble or wallpaper to peel.
  

Attic Check

• Use a flashlight to inspect your attic during or after rain.
• Look for damp insulation, water trails on rafters, or visible drips.

Signs of a Roof Leak Outside Your Home

Sometimes the problem is visible from the ground or from a safe vantage point with binoculars. Look for:

Missing or Damaged Shingles

• Gaps in your shingles allow water to seep underneath.
• Curling, cracked, or loose shingles are early red flags.
  

Damaged or Rusted Flashing

• Flashing seals roof joints and penetrations (chimneys, skylights, vents).
• If it’s cracked, loose, or rusted, leaks are likely.
  

Clogged Gutters and Downspouts

• Overflowing gutters can push water back under shingles.
• Check for granules from shingles (this means your roof is wearing down).
  

Roof Valleys and Low Spots

• These areas collect water and are more prone to leaks.
• Dark streaks or moss growth often indicate moisture buildup.

Common Causes of Roof Leaks in Southern California

• Sun & Heat: UV rays break down shingles and sealants over time.
• Santa Ana Winds: Strong gusts loosen shingles or tiles.
• Heavy Rains: Though infrequent, SoCal downpours quickly expose weak spots.
• Debris: Leaves, palm fronds, and branches trap water and damage shingles.

Simple DIY Leak Prevention Tips

You don’t need to climb on your roof to prevent leaks. Here are safe, simple tasks you can do:

• Keep Gutters Clear: Clean gutters at least twice a year.
• Trim Overhanging Branches: Prevent debris buildup and branch damage.
• Check Ceilings & Attic After Rain: Quick inspections help you spot issues early.
• Look for Roof Debris After Windstorms: Shingles or tiles in the yard are a warning sign.

When to Call a Professional

While spotting the signs is simple, fixing leaks is another story. DIY patches may work temporarily, but long-term repairs require proper tools and expertise.

You should call a roofer if:

• Water is actively dripping inside.
• Large sections of shingles or tiles are missing.
• The attic shows widespread moisture.
• You’re not comfortable climbing a ladder or walking on the roof.

* Remember, the sooner you act, the less damage and expense you’ll face.

Final Thoughts

Roof leaks never fix themselves; they only get worse over time. The good news? If you know what to look for, you can catch most leaks early and avoid costly damage.

If you’ve noticed warning signs, the next step is simple: have a professional inspect your roof.

Schedule Your Free Roof Inspection Today

About Bonded Roofing

For over 40 years, Bonded Roofing has proudly served homeowners across Southern California. Our team specializes in roof inspections, repairs, and replacements helping you protect your home before small issues turn into big problems.

We’re committed to transparent pricing, expert craftsmanship, and customer care that goes above and beyond. Whether you need a quick repair or a full replacement, Bonded Roofing is here to keep your home safe and secure.

Contact us today to schedule your free roof inspection.