Roof Repair Cost Calculator

Asphalt shingle repair is the most common residential roof repair. Since over 75% of American homes have asphalt shingle roofs, understanding these costs is particularly relevant for most homeowners.

Replacing missing or damaged shingles is the simplest repair, costing $150–$400 for a small area (under 100 sq. ft.). The materials themselves are inexpensive — a single bundle of replacement shingles costs $25–$55 depending on the type. The majority of the cost is labor, as a roofer needs to safely access the area, remove damaged shingles, inspect the underlayment, and properly install the replacements with correct nail patterns and sealant.

Curling or buckling shingles often indicate an aging roof or ventilation problem. If only a small section is affected, targeted replacement costs $200–$500. However, if curling is widespread, it signals the roof is approaching end-of-life and replacement should be considered. A roofer can assess whether the curling is localized (fixable) or systemic (time to replace).

Granule loss is normal to a degree — new shingles shed loose granules for the first year. But heavy granule loss on an older roof means the shingles are deteriorating. There's no "repair" for granule loss — it's a sign that replacement is approaching. If you notice excessive granules in your gutters, get a professional inspection.

Cracked shingles from impact damage (hail, falling debris) can be individually replaced for $150–$300. If your homeowner's insurance covers storm damage, your out-of-pocket cost may be limited to your deductible. Always file a claim before starting repairs if storm damage is involved.

Getting an accurate roof repair estimate protects you from overpaying and helps you budget appropriately. Follow these steps to ensure you get fair, comparable quotes:

• Get 3 quotes minimum. Contact at least three licensed roofing contractors for written estimates. This gives you a baseline to compare pricing and catch any outliers that may indicate low-quality work or price gouging.
• Insist on written, itemized estimates. A professional estimate should break down costs into materials, labor, and any additional charges (permits, disposal, etc.). Avoid contractors who only provide a verbal lump-sum price.
• Verify licensing and insurance. Confirm the contractor holds a valid roofing license in your state and carries both general liability insurance and workers' compensation. Ask for certificate of insurance — legitimate contractors provide this readily.
• Check for warranty coverage. Ask if the repair is covered by any existing manufacturer or workmanship warranty from your original roof installation. Many issues within the first 10–15 years may be partially or fully covered.
• Document the damage first. Take photos of the damage from ground level and (safely) from the roof before any contractor visits. This protects you if there's a dispute about the scope of damage. Photos also help with insurance claims.
• Ask about the underlying cause. A good contractor doesn't just fix the symptom — they identify why the damage occurred. Was it poor installation, ventilation issues, or just weather? Understanding the cause helps prevent recurrence.

Catching roof problems early can mean the difference between a $200 repair and a $10,000+ replacement. Watch for these warning signs:

• Water stains on ceilings or walls. Brown or yellowish stains are a telltale sign of an active or recent roof leak. The leak source may be far from the stain — water travels along rafters and sheathing before dripping down.
• Missing, cracked, or curling shingles. Visible from the ground, damaged shingles expose the underlayment and decking to moisture. Even a few missing shingles should be addressed promptly.
• Granules in gutters. Some granule loss is normal for new shingles, but excessive accumulation (especially from older roofs) means shingles are deteriorating and losing their protective coating.
• Sagging roofline. A visible sag in the roofline indicates structural problems — potentially rotting decking, failed rafters, or excessive weight. This requires immediate professional attention.
• Daylight through the attic. If you can see light through your roof boards from inside the attic, water can get in through those same gaps. Inspect your attic during the day with the lights off.
• Higher energy bills. A sudden increase in heating or cooling costs can indicate deteriorated roof insulation or ventilation, often caused by moisture intrusion from a failing roof.
• Moss, algae, or dark streaks. While primarily cosmetic, heavy moss growth can lift shingles and trap moisture. Dark streaks from algae indicate sustained moisture. Both warrant inspection.
• Damaged flashing. Flashing around chimneys, vents, and skylights is a common failure point. Rust, gaps, or lifted flashing should be repaired before leaks develop.

We recommend inspecting your roof visually from the ground twice a year — once in spring and once in fall — and after any major storm event. An annual professional inspection ($150–$300) can catch problems before they become expensive.