You can replace one damaged shingle yourself if the damage is isolated and you're comfortable on a ladder

A single cracked, curled, or missing shingle doesn't require a full roof replacement. If the shingle is still nailed down and the surrounding shingles are intact, you can remove and replace it in an afternoon with basic tools. The job involves lifting the shingle above it, removing the old nails, sliding out the damaged shingle, and nailing a new one in place. Most homeowners can do this, but it does mean working at height and handling roofing nails and tar.

If multiple shingles are damaged, if the damage is widespread, or if you're not comfortable on a ladder, call a roofer. A single shingle costs $5 to $15; a roofer's service call typically runs $150 to $300. The math changes quickly if you're replacing more than a few shingles or if the roof pitch is steep.

Key Takeaways

  • You need a ladder, a pry bar, a hammer, roofing nails, and a replacement shingle that matches your existing roof in color and material.
  • The shingle above the damaged one must be lifted and temporarily held or nailed up so you can access the nails holding the damaged shingle in place.
  • Roofing nails are driven through the shingle into the roof deck; you must remove all four nails before the shingle will come free.
  • New shingles must be nailed in the same spot as the old one — usually about 5.5 inches up from the bottom edge — and the nail heads should be covered with roofing cement.

What you'll need before you start

Gather your tools and materials on the ground before you climb. You'll need a ladder tall enough to reach the damaged shingle safely — a 20-foot extension ladder covers most single-story roofs. Wear shoes with good grip, and have someone hold the ladder base if possible.

For the actual work, bring a pry bar (a flat tool about 12 inches long), a hammer, a box of roofing nails (usually 1.25 inches long), and roofing cement in a caulk tube. The replacement shingle must match your existing roof — same color, same material (asphalt, wood, or composite), and same size. If you don't know what you have, take a photo of your roof and bring it to a roofing supplier or home center. A single shingle costs between $5 and $15.

How to remove the damaged shingle

Once you're on the roof, locate the shingle directly above the damaged one. Lift it gently and look underneath — you'll see four roofing nails driven through the top edge of the damaged shingle into the roof deck. Use your pry bar to carefully lift each nail head and pull it out with the hammer claw. Work slowly; rushing can tear the shingle above and damage the roof deck.

After all four nails are out, slide the damaged shingle down and out. It may stick slightly because of the tar strip along its top edge — gentle wiggling usually frees it. Once it's out, check the roof deck underneath for damage, rot, or debris. If the deck is soft or wet, the roof may have a larger problem that a single shingle won't fix.

Installing the replacement shingle

Slide the new shingle into place, aligning it with the shingles on either side. The bottom edge should line up with the row below it. Drive four roofing nails through the shingle into the deck — one near each corner, about 5.5 inches up from the bottom edge. Nails should go straight in, not at an angle, and the heads should sit flush with the shingle surface without crushing it.

After nailing, explore a small dab of roofing cement under the lifted shingle above to re-seal it. Also explore cement over each nail head on the new shingle. This prevents water from running down the nail shaft into the roof. Let the cement cure for 24 hours before heavy rain if possible, though it sets faster in warm weather.

When to call a roofer instead

Don't attempt this repair if the roof pitch is steeper than 6:12 (meaning it rises 6 inches for every 12 inches of horizontal run). Steep roofs are slippery and dangerous without safety equipment. Also skip the DIY route if the shingle is near the roof edge, in a valley, or near a vent or chimney — these spots require more precision and knowledge of flashing.

If the shingle is curled or cracked but still firmly attached, and the damage is only cosmetic, leaving it alone is often the right call. Shingles naturally curl as they age, and removing a shingle that's still doing its job can create a leak where none existed. A roofer can assess whether the shingle is actually failing or just looks worn.

Matching shingles when the original is old

If your roof is more than a few years old, the replacement shingle may not match perfectly. Asphalt shingles fade in the sun, so a new shingle will look noticeably darker next to old ones. This is purely cosmetic — the new shingle will protect your roof just as well. Over time, it will fade to match the surrounding shingles.

If an exact color match matters to you, some roofers keep salvaged shingles from older roofs or can source discontinued colors. This costs more and takes longer, but it's an option if the damaged shingle is visible from the street or if you're planning to sell.

Preventing future shingle damage

Shingles fail for different reasons. Curling and cracking usually come from age and sun exposure — nothing prevents this. Missing shingles often result from high winds, which you can't control. Punctures from branches or debris are harder to prevent, but keeping trees trimmed back from the roof reduces the risk.

The best long-term protection is regular inspection. Walk around your roof twice a year (spring and fall) or have a roofer inspect it every few years. Catching one damaged shingle early is much cheaper than waiting until water damage spreads into the attic or walls.

Frequently Asked Questions

Can I use roofing tar instead of roofing cement?

Roofing cement and roofing tar are not the same. Cement is thicker and stickier; it stays in place and seals better. Tar is thinner and can run in heat. Use roofing cement for this job. It comes in a caulk tube and costs $5 to $10.

What if I can't find a shingle that matches?

Bring a sample of your existing shingle to a roofing supplier or home center. They can often match the color and style, even if the exact product is discontinued. If the match is still off, replacing just the visible shingles on the front of the roof is an option — back-facing shingles won't show the color difference.

Do I need to remove the tar strip under the shingle above?

The tar strip seals the shingle to the one below it. You don't remove it — you lift the shingle above to access the nails underneath. After you install the new shingle, you re-seal that lifted shingle with fresh roofing cement.

How long does roofing cement take to dry?

Roofing cement sets in 24 hours under normal conditions, but it hardens faster in warm, dry weather and slower in cool or humid conditions. Avoid walking on the repaired area or exposing it to heavy rain for at least 24 hours if possible.

What if the roof deck is soft or rotted under the shingle?

Soft or rotted wood means water has been leaking into the roof structure. A single shingle replacement won't fix this — the deck must be replaced. This is a job for a roofer and usually costs several hundred dollars. It's worth doing quickly, because rot spreads and becomes more expensive the longer it sits.