Advantages and Disadvantages of Sewn In Hair Extensions

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Sewn-in hair extensions provide a natural look and feel that many clients desire, but there are advantages and disadvantages to consider before investing in this type of product.

In this article, we will explore the pros and cons of sewn-in hair extensions so you can make an informed decision on whether they’re right for your business or salon.

What are Sewn-In Hair Extensions?

sew in hair extensions

Sew-in hair extensions, also called weaves, are more difficult to install than other hair extension methods such as tape-in extensions and clip-in extensions.

The process begins by drawing a cob on either side of your head beginning at the back behind your ears.

The cobs should be formed horizontally towards the rear until they meet each other in the center.

The hair is then sewn into the cob in small sections with a needle and thread.

Sew in weft is usually employed to add more length or volume and must be installed by a qualified stylist who is certified in their application.

There are two different types of sewn in extensions: Hand-tied and Machine sewn wefts.

But the differences are simple!

Hand-tied weft extensions

Hand tied wefts are wefts that have been manually hand-tied together to create a more natural look. Typically, hand tied extensions are lighter.

Contrary to its name, hand tied hair extension don’t necessarily refer to the installation process; instead, they mean that the hair strands are wefted together with meticulous craftsmanship and detail.

This creates a thin, lightweight weft that is virtually unnoticeable.

Plus, because it requires minimal amounts of hair for assembly, these types of extensions blend seamlessly with real human hair—which many customers favor!

They also create a natural locks appearance, giving customers, particularly those with fine hair, considerably more volume and thick hair.

Most customers report that hand tied wefts are hardly noticeable since they comfortably match their head’s curvature.

Needless to add, customers may treat hand-tied extensions like their natural hair, washing and styling them as normal without having to work around their appearance.

Machine sewn weft hair extensions

sew in hair extensions

On the other hand, machine sewn wefts extensions are wefts that have been sewn together with a machine rather than by hand. It comes in from 18.5″ to 22.5″ adding extra length to your customers’ hair.

In a nutshell, the primary difference between machine wefts and hand tied wefts is that the former are sewn together using a sewing machine.

This necessitates more hair to be caught in each stitch by the machine; thus making them thicker than their counterpart at two to three times denser.

Machine wefts are best for clients that have thicker hair.

Machine sewn wefts, unlike hand tied wefts extensions, may be fitted and trimmed to fit your client’s head due to their production.

Because of their density, machine sewn wefts give higher thickness with fewer wefts.

What are the Advantages of Sewn In Wefts Hair Extensions?

sew in hair extensions

Image Source: Hairfinder


One of the benefits of using sewn-in extensions is that they are cost-effective.

Since the wefts are pre-made, there’s no need to invest in purchasing additional supplies which can drive up costs.

For budget-conscious salons, this can make a huge difference when it comes to offering quality services without breaking the bank.

One of the best permanent hair extensions

sew in hair extensions

Another advantage of sewn-in hair extensions is that they are one of the most permanent extension methods available.

Sew in wefts hair extensions can last up to 4 months of life span and even more with proper care.

Easy to customize

The great thing about sewn-in extensions is that they’re easy to customize.

With sew in hair extensions, you can opt for a more natural look by adding highlights or lowlights and even changing the texture and length of your hair.

Durable and firmly hold on hair

The wefts are securely attached to your natural hair, meaning that they won’t slip or loosen easily.

This makes them a great choice for active individuals who need their hair to stay firmly in place no matter what activity they’re doing.

Good on thick hair

Sew in weft hair extensions are best suited for those with thick hair.

The wefts provide incredible coverage and can be adjusted to fit the desired look.

Easy to install – no glue required!

Sewn in extensions require very little time to install, and the process is fairly simple.

Since there’s no need for glue, the extensions won’t damage hair or irritate the scalp.

This type of extension is a great choice for those who are looking for something quick and easy.

You can even wash, blow dry, straighten, curl, and color the weft and it adds volume to locks.

Disadvantages of Sew In Wefts Hair Extensions

sew in hair extensions


One of the worst disadvantages of sew in weft hair extensions is the amount of time it takes to install them.

Even for the stylist, this process can take over an hour and even more depending on the desired look.

Potential for damage

Sew in extension can be damaging to natural hair if not done correctly.

If the wefts are installed too tightly, they can pull on your scalp and cause traction alopecia, or breakage.

Not suitable for thin hair

sew in hair extensions

Sew in weft extensions are not recommended for those with thin hair type as they can cause damage or be difficult to hide.

Also, since these extensions require a large amount of hair to secure the wefts, it may be difficult to achieve a natural look.

Difficult to wash and clean

Since sew in wefts extension are sewn directly into the scalp, it can be difficult to properly clean and shampoo them.

This is especially true for those with thicker hair strands as the wefts may require additional attention to ensure a thorough cleanse.

Commonly Asked Questions about Sewn in Hair Extensions

sew in hair extensions

We know you still have a lot of questions in mind about sew in weft extensions! With that, here are the commonly asked questions about the topic:

Are sewn in extensions bad for natural hair?

Sew in extensions can be damaging to natural hair if they are not done correctly.

If the wefts are installed too tightly, they can pull on the scalp and cause traction alopecia or breakage.

Therefore, it is important to seek professional stylist help when installing sew in extensions to ensure that they do not damage hair.

Additionally, make sure that you take extra care of hair when washing and styling the extensions for the best possible result.

How long do sewn in hair extensions last?

sew in hair extensions

Sewn-in hair extensions can last up to 4 months with proper care, making them a great option for those who prefer long-term results or those in need of a more secure hold.

With sewn-in extensions, you can add volume to your customers ’ hair without risking any damage to their natural hair.

However, the lifespan of your extensions will depend on how well they are cared for and maintained.

How much is Sewn In Hair Extensions?

The price depends on the length of the extensions. Usually, the 14″ length costs around $150 and may go up to $600 for the 24″ length.

How long does it take to put sew in weft hair extensions?

The installation method differs on the type of extensions that will be used and the area that the extension will be installed.

On average, it takes about 4-6 hours for a full head of sew in extensions to be installed by a professional hairdresser.

Is heat required for sew-in hair extensions?

sew in hair extensions

No, you do not need to use any heat when installing sew in extensions.

The wefts can be sewn directly into your hair or clipped on with special clips that are provided by the extension supplier.

Using heat could cause damage to both the natural hair and the extensions, so it is best to avoid using it.

Which one is better? Hand tied extensions or machine sewn wefts

sew in hair extensions

Typically, those with delicate hair will find hand tied weft extensions to be an ideal fit, as they are both weightless and unlikely to tug or pull.

Machine sewn wefts apply more pressure on the scalp, making them better suited for good volume, thicker, coarser hair type.

Both methods provide long-lasting hold and are securely attached to your customer’s natural hair.

Ultimately, it will depend on their individual needs and desired result.

Where can I buy sewn in hair extensions?

Sew in hair weft extensions can be purchased from beauty supply stores, salons, and even online.

It is important to ensure that you purchase quality hair extensions that are made of 100% human hair for the best results.

If you need a reliable hair extension manufacturer, Alvin Hair is a well-known manufacturer of high-quality hair extensions.

Why Alvin Hair is one of the best providers of hair extensions?

sew in hair extensions

Alvin Hair has been delivering high-quality hair extensions for more than 10 years.

We offer a wide range of hair extension products for salons, hair businesses, and even professional stylists. 

Our extensions are 100% human hair, ensuring customers get the best results and achieve volume with their sew in extensions.

Our experienced team works closely with clients to help them choose the right type and color of extension that will be perfect for their needs.

In addition, Alvin Hair offers competitive prices for new extensions for your business!

We also provide excellent customer service to easily attend to the needs of our clients’ businesses. Whatever general location you may be, we can arrange shipment and delivery to your country.

Boost your business with our high quality services

Alvinhair will be your best choice in hair industry