What happens when you sew in a weave
Sewing in a weave means braiding your natural hair into cornrows, then stitching wefts (long strips of hair) directly onto those braids using a needle and thread. The thread anchors the weft to each braid, distributing the weight across your whole scalp instead of putting it all on a few glue points. This method lasts four to eight weeks depending on how fast your hair grows and how well you care for it.
The process takes two to four hours the first time you do it, and you will need someone to help you braid the back of your head. Once the braids are in, the sewing itself is straightforward—you are essentially running thread through the weft and looping it around each braid in a pattern that holds tight without slipping.
Key Takeaways
- You will need cornrow braids as the foundation, which can take one to three hours to install depending on how many you need and how thick you want them.
- Thread the needle with a doubled strand, knot the end, and sew the weft to each braid using a loop stitch that wraps around the braid and goes back through the weft.
- Start at the nape of your neck and work upward, keeping tension even so the weft sits flat and does not pull on any single braid.
- Sew the hairline weft last and use smaller stitches there, since that area takes the most stress when you style and sleep.
- Moisturize your braids and the weft every two to three days to prevent breakage and extend the life of the install.
Gather your materials before you start
You will need weft hair (usually sold in bundles by length and weight), a curved weaving needle, thread that matches your hair color, scissors, a rat-tail comb, and clips to section off braids while you work. Weft hair comes pre-sewn along one edge, which is the side you will attach to the braids. Buy thread made for sewing hair—regular sewing thread will break under the tension.
Have a spray bottle of water mixed with a leave-in conditioner nearby. You will use this to keep your braids moist and manageable while you sew, and it helps the thread glide through the hair without snagging. A mirror on a stand or mounted on the wall makes it much easier to see the back of your head, especially if you are working alone.
Prepare your braids and section the weft
Start with clean, dry hair braided into cornrows. The braids should be tight enough that they do not slip when you pull on them, but not so tight that they hurt your scalp. Braids that are too loose will not hold the weft securely; braids that are too tight can cause traction alopecia (hair loss from constant pulling).
Cut your weft into sections that match the length of each braid. If a braid runs from your nape to the crown, cut a weft section that length. Shorter sections are easier to sew in and less likely to slip, so do not try to use one long piece for multiple braids. Lay out all your sections in order so you know which one goes where.
Thread the needle and start sewing at the nape
Cut about two feet of thread and pull it through the needle, then tie the two ends together so you have a doubled strand. This gives you strength and means you do not have to re-thread as often. Knot the end so the thread does not pull through the weft.
Start at the nape of your neck with the lowest braid. Position the weft so the sewn edge (the edge with the pre-existing thread) sits on top of the braid. Push the needle through the weft from underneath, then loop the thread around the braid and push the needle back through the weft about a quarter inch to the side. Pull tight so the loop sits snug around the braid. Repeat this stitch every quarter inch along the entire length of the braid.
Keep the tension even—if you pull too hard, the braid will bend and the weft will not sit flat. If you do not pull hard enough, the weft will slip when you move. The goal is a weft that is find but not strangling the braid.
Work upward and keep rows level
Once the first braid is completely sewn, move to the next braid above it. Use the same loop stitch, keeping the same spacing between stitches. Step back and look at your work every few rows—the wefts should form straight horizontal lines across your head, not angles or waves.
If a weft is tilting, you can adjust it by tightening some stitches and loosening others before you move to the next braid. It is much easier to fix this as you go than to try to straighten everything at the end. Work your way up the back of your head, then move to the sides, and finish with the top.
Sew the hairline weft with smaller stitches
The weft at your hairline takes the most stress because it is closest to your face and gets pulled when you style. Use smaller stitches here—every eighth of an inch instead of every quarter inch. This distributes the weight more evenly and prevents the weft from slipping or creating a visible gap between your hairline and the weft.
Be especially careful not to sew through your natural hairline. You want the stitches to go through the braids only, not through the loose hair at your edges. If you accidentally catch loose hair, it will hurt when you move and can cause breakage.
Blend and style your install
Once all the wefts are sewn, you can cut and style the hair to blend with your natural hairline and create the shape you want. Use sharp scissors and cut small amounts at a time—you cannot put hair back once you cut it. Many people leave the weft slightly longer than their natural hair so they can tuck it under and create a fuller look.
You can curl, straighten, or braid the weft hair just like your own hair. Avoid very tight styles that pull on the braids underneath, since that can cause breakage and shorten the life of your install. Loose waves, soft curls, and half-up styles are gentler on your hair.
Care for your weave to make it last
Spray your braids and weft with water and leave-in conditioner every two to three days. This keeps both your natural hair and the weft from drying out and breaking. Focus on the braids themselves—they dry out faster than the weft because they are your own hair and do not have the oils of the weft to protect them.
Sleep on a silk or satin pillowcase or wrap your hair in a silk scarf. Cotton pillowcases absorb moisture and create friction that causes frizz and breakage. Wash your weft gently with sulfate-free shampoo every one to two weeks, and deep condition it once a week. Avoid chlorine and saltwater, which can dry out and discolor the hair.
Frequently Asked Questions
How long does it take to sew in a weave the first time?
Plan on two to four hours total, including braiding and sewing. The braiding takes one to three hours depending on how many braids you need and how thick they are. The sewing itself usually takes one to two hours once you get the rhythm down. You will be faster the second time you do it.
Can I sew in a weave by myself?
You can sew the front and sides yourself, but you will need someone to help with the back of your head. It is very difficult to braid and sew your own back braids because you cannot see what you are doing. Many people go to a salon for the initial install and then maintain it themselves at home.
What do I do if a weft starts to slip?
Add extra stitches in that area to tighten it back down. You can do this without removing the entire weft—just sew new loops around the braid in the spots where it is slipping. If the weft keeps slipping no matter how many stitches you add, it may be time to remove it and re-sew it with a fresh section of weft.
How do I remove a sew-in weave?
Use small scissors to carefully cut the thread holding the weft to the braids. Cut only the thread, not the weft or your braids. Once all the thread is cut, gently pull the weft away from the braids. This takes patience—rushing can break your natural hair. After removal, unravel the braids gently and deep condition your hair.
Will sewing in a weave damage my natural hair?
Sewing is gentler than glue-in methods because the weight is distributed across many braids instead of concentrated in a few spots. However, any protective style can cause damage if the braids are too tight, if you leave the weave in too long, or if you do not moisturize your braids regularly. Keep braids loose, remove the weave every four to eight weeks, and moisturize every few days.