7 Early Warning Signs of Roof Failure Every Homeowner Should Know
Your roof is one of the most important parts of your home—it protects your family, your belongings, and your investment. Over time, even the strongest roofs begin to wear down due to weather, age, or poor ventilation. The key to avoiding major repair costs is catching problems early.
At Cornerstone Building & Restoration, a licensed and insured residential roofing contractor serving Virginia, Maryland, Pennsylvania, New Jersey, and Wilmington, DE, we specialize in roof replacement, roof repair, and roof inspections for homeowners who want lasting protection and peace of mind.
Missing, Cracked, or Curling Shingles
If your roof is missing shingles or they appear cracked, curled, or blistered, your home is at risk for water damage. Damaged shingles expose the underlayment to moisture, which can lead to leaks and wood rot.
Tip: After storms or high winds, visually inspect your roof from the ground. If you spot damage, schedule a professional roof inspection immediately.
Interior Water Stains or Leaks
Water spots on your ceiling or walls often signal a roofing issue. Even a small leak can lead to mold, mildew, and structural damage over time.
Action Step: Don’t ignore water stains—call a roofing expert to locate the source before the damage spreads.
Sagging Rooflines
A sagging roof is one of the most serious warning signs of roof failure. This can indicate trapped moisture, weakened decking, or structural issues.
Solution: Cornerstone’s roof repair specialists can determine whether reinforcement or full roof replacement is needed to restore safety and integrity.
Granules in Gutters
Finding a large amount of roofing granules in your gutters is a sign your shingles are deteriorating. Granules help protect your roof from the sun and weather—once they’re gone, your roof becomes more vulnerable.
Pro Tip: Schedule a roof maintenance inspection if you notice dark, bare spots on your shingles or granules washing out after heavy rain.
Moss, Mold, or Algae Growth
Moss and algae may seem harmless, but they trap moisture that can damage your roof over time. Mold growth may also signal leaks or poor ventilation in the attic.
Prevent It: Keep your roof clean and ensure your attic has proper airflow. Cornerstone offers roof cleaning and ventilation upgrades as part of our full-service approach.
Rising Energy Bills
If your heating or cooling bills are suddenly higher, your roof could be the problem. Poor insulation, leaks, or ventilation issues can let conditioned air escape.
Energy-Saving Tip: An energy-efficient roof replacement can reduce utility costs and improve indoor comfort throughout the year.
- Roof Age and General Wear
Most residential roofing systems last between 20–30 years depending on the material and climate. If your roof is nearing that age—or if you’ve experienced multiple repairs—it may be time to plan for replacement before leaks start.
Next Step: Cornerstone Building & Restoration provides free roof inspections and honest assessments to help you plan ahead.
Your Local Roofing Experts in VA, MD, PA, NJ & DE
At Cornerstone Building & Restoration, we take pride in delivering high-quality craftsmanship and dependable roofing solutions for homeowners throughout the Mid-Atlantic region. Our services include:
- Roof Inspections & Preventive Maintenance
- Roof Repairs for Leaks, Shingles, and Flashing
- Complete Roof Replacements using top-grade materials
- Gutter, Ventilation, and Attic Upgrades
Whether you need minor roof repairs or a full roof replacement, our licensed professionals ensure your home is protected for decades to come.
Schedule Your Free Roof Inspection Today
Don’t wait until small roofing issues become major problems. Contact Cornerstone Building & Restoration for a free, no-obligation roof inspection today. We proudly serve homeowners across Virginia, Maryland, Pennsylvania, New Jersey, and Wilmington, Delaware.

Roof Shingles
About Cornerstone Building and Restoration – Trusted Residential Roofing Experts
Cornerstone Building and Restoration is a family-owned roofing company with over 34 years of experience serving homeowners across the Mid-Atlantic states. We specialize in residential roofing, siding replacement, and gutter installation, delivering high-quality craftsmanship and customer satisfaction.
With offices in Leesburg, Wilmington, Marlton, Rockville, and Philadelphia, we proudly serve communities throughout Virginia, Maryland, Pennsylvania, New Jersey, and Delaware. As a GAF Certified roofing company, we use premium materials and industry-leading techniques to ensure durability and long-lasting protection for your home.
Why Choose Us?
✅ Expert Roof Replacement & Repairs – We specialize in roof installations, shingle replacements, and storm damage restoration.
✅ Vinyl Siding Installation – Enhance your home’s curb appeal with durable, energy-efficient siding.
✅ Professional Gutter Installation – Protect your property with seamless gutter solutions.
✅ HAAG-Certified Inspectors – Our certified experts accurately assess storm-related damage to help homeowners prevent costly repairs.
✅ Licensed & Insured – Fully licensed in VA, MD, PA, NJ, and DE, ensuring compliance with all state regulations.
🏡 Protect your home with Cornerstone Building and Restoration – Contact us today for a free inspection and estimate!