The basic process: remove the old string, thread the new one, tune it up

Replacing an electric guitar string takes about five to ten minutes once you know the steps. You'll loosen the tuning peg at the headstock until the string goes slack, unwind it completely, remove it from the bridge, insert the new string in the same spot, thread it back up to the tuning peg, and tighten it until it reaches pitch. The whole job requires only the tools you probably already have: wire cutters and your hands.

Most players replace strings one at a time so the neck stays under tension and doesn't warp. Some prefer to remove all six at once if they want to clean the fretboard underneath. Either method works—the one-at-a-time approach is just safer for the guitar's structure.

Key Takeaways

  • Loosen the tuning peg at the headstock until the string is completely slack, then unwind it by hand or with the tuning key.
  • Pull the old string out of the bridge (either by removing a bridge pin on acoustic-style bridges or by pulling it straight through on through-body bridges), then insert the new string in the same hole.
  • Thread the string up to the tuning peg, leaving about two to three inches of slack so you have room to wind it around the post.
  • Wind the string around the tuning peg post in a downward direction, keeping tension with your other hand so the wraps stay neat and don't overlap.
  • Tune the string up to pitch using a tuner, then gently stretch it by pulling on the string to help it settle and hold its pitch longer.

Loosen and remove the old string at the headstock

Turn the tuning peg counterclockwise (when looking at the headstock straight on) until the string goes completely slack. You can turn it by hand, but most people use the tuning key—the small wrench that came with your guitar or that you can buy for a few dollars at any music store. Turn slowly so you can feel when the string loses all its tension.

Once the string is slack, unwind it the rest of the way by hand. Some strings will pull free from the tuning peg post on their own; others need a gentle tug. Don't force it. If the string is wound tightly, keep turning the tuning peg until you can unwind it by hand without resistance.

Remove the string from the bridge

Electric guitars use one of two bridge styles. On a through-body bridge (common on Fender Stratocasters and Telecasters), the string straightforward pulls straight out from the back of the guitar body. Grab the string and pull it out—it will slide free without any tools.

On a top-loading bridge (common on Gibson Les Pauls and similar guitars), a small metal or plastic pin sits in the bridge slot above the string. Push the pin up and out—you can usually do this with your finger or the tuning key handle—and the string will come free. Set the pin aside in a safe place; you'll need it again in a moment.

Insert the new string into the bridge

Take your new string (the correct gauge for the string you're replacing—the package will tell you which string number it is) and insert it into the bridge hole where the old string came out. Push it all the way through until the ball end (the small metal knot at one end) sits snug against the bridge.

If you have a top-loading bridge with a pin, push the pin back down into the slot to hold the string in place. The pin should sit flush with the bridge surface. If you have a through-body bridge, the string is already held by the ball end on the back, so you're ready to move to the headstock.

Thread the string up to the tuning peg

Pull the string up toward the headstock, keeping it roughly centered over the fretboard. You want about two to three inches of slack at the tuning peg—enough to wrap around the post several times without the string being so tight that you can't wind it. If you pull it too tight, you won't have room to wind it; if you leave too much slack, you'll have excess string hanging off the post after you tune up.

Insert the string through the hole in the tuning peg post. The hole is usually drilled straight through the post, so the string should slide in easily. If it doesn't, make sure you're using the correct tuning peg for that string—the thicker strings (low E, A, D) usually have larger posts than the thinner strings (G, B, high E).

Wind the string around the tuning peg post

This is where most beginners struggle, but it becomes automatic with practice. Hold the string with light tension in one hand (pulling slightly away from the post) while you turn the tuning peg with the other hand. Turn the tuning peg so the post rotates downward—this winds the string around the post in neat, parallel wraps.

Keep the string under tension as you wind so each wrap sits neatly below the previous one and doesn't overlap or cross over itself. You want three to four clean wraps around the post before the string reaches pitch. If you wind too loosely, the string will slip and go out of tune; if you wind too tightly, you risk breaking the string or stripping the tuning peg.

Stop winding when the string reaches approximately the right pitch. You don't have to hit it exactly—a tuner will help you dial it in in the next step.

Tune the string to pitch and stretch it

Use a digital tuner (a small device that clips onto the headstock or sits on a table) to bring the string up to the correct pitch. Most tuners show you whether you're sharp (too high) or flat (too low) with a needle or light. Turn the tuning peg slowly until the tuner shows you're on pitch.

Once the string is in tune, gently pull on it—grab the string a few inches above the fretboard and pull it away from the guitar with steady pressure. This stretches the string slightly and helps it settle into its final pitch. Tune it again after stretching; it will likely have dropped a little. Repeat the stretch-and-tune cycle two or three times. New strings take a while to fully settle, so expect the string to drift slightly out of tune over the next few hours and days.

Frequently Asked Questions

Do I need to replace all six strings at once?

No. Replacing one string at a time keeps tension on the neck and is safer for the guitar. Replace all six only if you want to clean the fretboard underneath, or if multiple strings are damaged. Even then, you can do it in pairs to maintain some neck tension.

What gauge string should I buy?

Buy the same gauge as the string you're replacing. The package will show you which string number it is (1 through 6, or sometimes labeled by thickness like .046 for a low E). If you don't know which string broke, look at your guitar's manual or ask at a music store—they can tell you the standard gauge for your model.

Why does my new string keep going out of tune?

New strings take time to settle. Stretch it several times as described above, and expect it to drift for the first few hours. If it's still drifting badly after a day, check that the tuning peg winds are neat and tight, and that the string is seated properly in the bridge and nut.

Can I reuse the old string?

Broken strings can't be reused. If the string is just old and dull-sounding but not broken, you can keep it as a spare, but most players replace all six strings together every few months because old strings sound duller and go out of tune more easily.

What if the string breaks while I'm winding it?

Start over with a fresh string from the package. Broken strings can't be salvaged. If strings are breaking regularly during installation, you may have a sharp edge on the bridge, nut, or tuning peg post—have a music teacher or repair person check it.