How Long Does Blown in Insulation Last?

Insulation is one of the most important components of a home, as it helps keep the interior temperature comfortable while also providing soundproofing and energy efficiency. Blown in insulation is a popular choice for homeowners looking to upgrade their insulation, as it is easy to install and can provide superior insulation and soundproofing. But how long can you expect blown in insulation to last?

The lifespan of blown insulation depends on the type of insulation and the quality of the installation. Properly installed blown-in insulation can last up to 50 years, and in some cases, much longer. That’s a significant amount of time and means that homeowners can expect to get a good return on their investment in blown insulation.

fiberglass loose fill blown in insulation

There are several types of blown attic insulation available, each with its own pros and cons.

The most common types of Blown-In Insulation are:

  • Cellulose,

  • Fiberglass,

  • Rock Wool.


Cellulose is made from recycled paper products and is the most affordable option. It is also fire-resistant and good at soundproofing.


Fiberglass is the most popular choice, as it is easy to install and provides good insulation.


Rock wool is the most expensive option, but it is also the most durable and can last up to 100 years with proper maintenance.

Blown in Insulation Installation

When installing attic insulation, it’s important to make sure the job is done correctly. Improperly installed insulation can cause energy loss and may not last as long as it should. That’s why it’s important to hire an experienced contractor to ensure the job is done correctly.

It’s also important to consider the cost of blown insulation. Prices vary depending on the type of insulation, the size of the area, and the contractor performing the work. On average, blown-in insulation installation costs between $1.50 and $2.50 per square foot. Homeowners should also factor in the cost of any additional materials or services needed to complete the installation.

Blown Insulation on an attic insulation project in Covina.


Blown-in insulation can provide superior insulation and soundproofing and can last up to 50 years with proper maintenance. Homeowners should be sure to hire a qualified insulation contractor for the installation and factor in the cost of any additional materials or services needed. With the right installation, blown-in insulation can be a great investment in the comfort and energy efficiency of your home.

Get Your FREE Attic Insulation Quote, Call Brad Today!

Call Brad today for your FREE quote.

(626) 696-6042

Get a FREE Attic Insulation Quote Today!
Whether it is a residential or commercial property, whatever your insulation needs are, Blown - In Insulation is the insulation contractor you want! Contact Brad today for more information on our services, and don’t forget to ask for your free quote! Phone: (626) 696-6042 ‍ Service Area: Southern California

Have more questions, either contact Brad today or read our FAQ article on home insulation in Southern California.