Sew-in hair extensions are a popular and versatile method for adding length and volume while maintaining a natural look. As a professional stylist or salon owner, understanding how to sew in hair extensions not only allows you to provide top-notch service but also helps you educate clients on care, longevity, and removal. In this guide, we’ll cover installation, costs, maintenance, and safe removal techniques.

How Much Are Sew In Extensions?
The cost of sew-in hair extensions varies depending on several factors:
- Hair type: Virgin hair tends to be more expensive but lasts longer.
- Length and thickness: Longer and fuller wefts increase the price.
- Salon location: Prices in major cities are often higher.
- Professional expertise: Skilled stylists may charge a premium for flawless installation.
On average, sew-in extensions in the U.S. can range from $200 to $800 for a full-head installation, excluding hair cost. While the upfront investment may seem high, high-quality hair and proper installation ensure a long-lasting and natural-looking result.
How Do You Do Sew In Hair Extensions?

Installing sew-in extensions requires skill and precision. Here’s a step-by-step overview for professionals:
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Prepare the Hair
Wash, condition, and detangle the client’s hair. Make sure it is completely dry before starting. Divide the hair into sections to create a clean working area. -
Create the Braid Base (Cornrows)
Weave horizontal or curved cornrows close to the scalp. Ensure braids are even and not too tight to avoid tension on the client’s scalp. -
Sew in the Extensions
Using a curved needle and thread, sew the hair wefts directly onto the cornrows. Make small, secure stitches and keep the thread tension moderate to prevent discomfort. -
Layer and Blend
Trim and layer the extensions to create a natural look. Check for even blending with the client’s natural hair.

Pro Tips:
- Always keep the line of braids neat for a seamless finish.
- Use high-quality thread and wefts to prevent slippage.
- Communicate with clients about comfort throughout the installation.
How to Care for Sew In Hair Extensions
Educating clients on maintenance is essential. Teach them how to care for hair extensions properly to prolong lifespan and maintain shine:
- Wash extensions gently with sulfate-free shampoo 1–2 times per week.
- Air-dry whenever possible; if using heat, always apply heat protectant.
- Protect hair at night with a silk or satin pillowcase, or loosely braid hair.
- Avoid chemical treatments that may damage the wefts or bonds.
- Schedule regular salon visits for inspection and maintenance.
Proper care ensures extensions stay tangle-free, smooth, and long-lasting, increasing client satisfaction and repeat visits.
How Do You Remove Hair Extensions?
Safe removal is just as important as installation:
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Cut the Thread or Untie Wefts
Carefully cut or untie the thread without pulling the client’s natural hair. -
Gently Remove the Wefts
Slowly lift the extensions off the cornrows to avoid breakage. -
Post-Removal Hair Care
Detangle the natural hair, wash, and condition. Consider a deep conditioning treatment to restore moisture.
Teaching clients proper removal techniques ensures their natural hair stays healthy and encourages them to return for future services.
Conclusion
Sew-in hair extensions are a professional and effective solution for clients seeking long-lasting volume and length. By knowing how much sew in extensions cost, how to install them, and how to remove them safely, stylists can provide exceptional service while educating clients on maintenance. Investing in quality hair, tools, and professional techniques ensures a natural, beautiful finish that keeps clients coming back.
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