How to Tell If Your Commercial Roof Needs Replacing (Before It Leaks)

As the owner of Hull & Sons Roofing, I've seen firsthand how many commercial property owners wait until their roof is actively leaking before calling for help. By that point, the damage has often gone beyond the roof—into insulation, drywall, electrical systems, and even tenant relationships.

The good news? There are early warning signs that your commercial roof may need replacing before a costly emergency hits.

1. Water Stains on Ceilings or Walls

If you’re seeing discolored spots or stains inside the building, it may mean water is making its way through compromised sections of the roof. These signs often show up long after the damage begins—making them a major red flag.

2. Blisters, Bubbles, or Cracks in the Roof Surface

For flat or low-slope roofs, especially with TPO or modified bitumen systems, visible bubbles or cracks indicate trapped moisture or aging membranes. This weakens the integrity of the roof and opens the door for leaks.

3. Rising Energy Bills

A failing roof doesn’t insulate properly. If your cooling or heating bills are creeping up, your roof might be allowing energy to escape—and moisture to enter.

4. Roof is 20+ Years Old

Most commercial roofing systems are designed to last 15–25 years with proper maintenance. If your roof is near or past that range, you’re living on borrowed time.

5. Frequent Repairs Are Adding Up

If you’ve patched the roof more than once in the past 1–2 years, it may be more cost-effective to replace it altogether. Recurring issues typically signal underlying failure—not just surface-level wear.

What You Can Do Now:

If you're unsure about your roof's condition, schedule a free inspection. At Hull & Sons Roofing, we specialize in helping commercial property owners make smart, budget-conscious decisions—whether it's extending the life of an existing roof or planning a replacement.

We’ve been serving Southern California for over 45 years, and we know what signs to look for—so you can act before it's an emergency.

Schedule Your Free Commercial Roof Inspection Today

Call (951) 685-9499 or visit hullandsons.com/commercial to book your inspection.

Protect your building, your tenants, and your bottom line—before the next storm hits.

—Cody Hull Owner, Hull & Sons Roofing