A broken string means you need to remove the old one and thread a new one through

When a guitar string breaks, the fix is straightforward: take out the broken piece, feed a new string through the bridge and tuning post, and tighten it until it reaches pitch. The whole job takes 5 to 10 minutes once you have a replacement string in hand. You do not need special tools—just your fingers and wire cutters if the string has excess length.

The process is the same whether the string snapped at the bridge, in the middle of the neck, or at the tuning post. You will remove what remains of the old string, clean the area where it sat, and install the new one in the same path.

Key Takeaways

  • Remove the broken string completely by loosening the tuning post until the string goes slack, then pull it out of the bridge and tuning post.
  • Thread the new string through the bridge first, then up to the tuning post, leaving enough slack to wrap around the post two or three times.
  • Wind the string around the tuning post by turning the tuning key, keeping tension so the string wraps neatly without overlapping itself.
  • Tune the string to pitch using a tuner, then gently stretch it by pulling on the string to help it settle and hold its tuning faster.
  • New strings take 24 to 48 hours to fully stabilize, so expect to retune several times before it stops drifting.

Remove the broken string from the bridge and tuning post

Start by loosening the tuning post for the broken string. Turn the tuning key counterclockwise (for most guitars) until the string goes completely slack. Once it is loose, pull the broken string out of the bridge—the part where strings anchor at the body of the guitar. On an acoustic guitar, you may need to remove a bridge pin (a small plastic or wooden peg) to free the string. On an electric guitar, the string usually slides out of a slot or hole.

Next, unwind the string from the tuning post at the headstock. Pull the remaining string away from the post and discard it. Wipe the area around the bridge and tuning post with a dry cloth to remove any rust, dirt, or debris. This is a good moment to clean the fretboard if you want—you have clear access now.

Insert the new string through the bridge

Take your new string and insert it into the bridge first. On an acoustic guitar, feed the string through the bridge hole and replace the bridge pin, pushing it down firmly so the string is held in place. On an electric guitar, slide the string into the bridge slot or bridge pin hole depending on your guitar's design. Pull the string taut toward the headstock.

Leave enough slack in the string so that when you reach the tuning post, you have 2 to 3 inches of extra length to wrap around the post. This slack is important—if the string is too tight, you will not have enough material to wind, and if it is too loose, the wraps will be sloppy and the string will not hold tuning.

Wind the string around the tuning post

Hold the string taut with one hand and use your other hand to turn the tuning key. For most guitars, turn counterclockwise to tighten. As you turn, the string will wrap around the tuning post in a spiral. Keep the string under tension so each wrap sits neatly below the previous one—do not let it overlap or bunch up.

Aim for two to three complete wraps around the post. After the third wrap, the string should be close to pitch. Stop winding and check the wraps: they should form a clean spiral with no overlaps, and the string should run straight from the bridge to the post without kinking.

Tune the string to pitch and stretch it

Use a tuner to bring the string up to its correct pitch. Turn the tuning key slowly as you watch the tuner—this prevents overshooting and snapping the new string. Once the string reaches the right note, stop turning.

Now gently stretch the string by gripping it between your thumb and forefinger and pulling it away from the fretboard. Pull firmly but not violently—you are not trying to break it, just help the string settle into its final position. Retune after stretching, because the string will have dropped slightly in pitch. Repeat the stretch-and-retune cycle two or three times. This process helps the string stabilize faster.

Expect the new string to drift for the first day or two

New strings take time to settle. For the first 24 to 48 hours, your new string will gradually drop in pitch as the material relaxes and adjusts to the tension. You may need to retune every few hours, especially in the first day. This is normal and does not mean something is wrong.

After 48 hours, the string should hold its tuning much more reliably. If a string continues to drift significantly after three days, check that the bridge pin (on an acoustic) is seated properly, or that the string is wound neatly around the tuning post with no overlaps or kinks.

When to replace all six strings at once

You can replace strings one at a time, and many players do. However, if three or more strings have broken in the last few months, or if your guitar has not had new strings in over a year, consider replacing all six at once. Old strings lose brightness and go flat more easily, and replacing them together keeps your guitar sounding balanced.

If you replace all six strings at once, you can remove them all before installing new ones, which gives you a chance to clean the fretboard and under the strings. Just remember that removing all strings at once releases tension on the neck, so do not leave the guitar unstrung for more than a few hours.

Frequently Asked Questions

Can I reuse the bridge pin from an acoustic guitar?

Yes. The bridge pin itself does not wear out. straightforward remove it, take out the broken string, insert the new string, and push the pin back down. If the pin is cracked or damaged, replace it with a new one of the same size.

What if the string breaks while I am winding it?

Stop when ready and remove the broken piece. Start over with a fresh string. Breaking during installation usually means you wound too tightly too quickly, or the string had a defect. Take your time on the next attempt and turn the tuning key slowly.

How tight should the string be wrapped around the tuning post?

Wrap it firmly enough that it does not slip, but not so tight that you are straining. Two to three neat wraps is the standard. The string should spiral downward with each wrap sitting below the last one, and there should be no gaps or overlaps.

Do I need to cut off the extra string length at the tuning post?

You can leave it or trim it. If you trim, use wire cutters and leave about half an inch of extra length so the string does not unwind. Many players leave the excess because it does not affect sound and gives you a safety margin if the string slips.

Why does my new string sound duller than the others?

New strings take a few hours to an hour of playing to brighten up. The material is still settling. Play the guitar normally and the string will sound brighter within a day. If it still sounds dull after a week of playing, the string may be defective or low quality.