Blown In Insulation Cost Guide: Pros, Cons & More

Did you know that the installation costs of blown-in insulation, which offers sound dampening, can vary significantly based on factors like material type, home size, and location? Understanding how much does blown-in insulation cost is crucial for homeowners looking to improve their energy efficiency and reduce heating and cooling expenses. In this post, we will delve into the intricacies of blown-in insulation costs, providing insights to help you make informed decisions about insulating your home effectively without breaking the bank, especially for homeowners looking for air sealing in their homes and free estimates.

Understanding Blown-In Insulation


Blown-in insulation refers to loose, small particles of insulating material that are blown into attics, walls, or other cavities using a machine in repairs, new construction, or homes. This type of insulation is commonly made from materials like fiberglass, cellulose, or mineral wool.


  • Fiberglass: Made of tiny glass fibers and is a popular choice for its affordability and effectiveness.
  • Cellulose: Composed of recycled paper materials treated with chemicals to resist fire, insects, and mold.
  • Mineral Wool: Derived from natural minerals like basalt or diabase and offers excellent fire resistance.

How It Works

Blown-in insulation works by filling up gaps and spaces in the designated area, creating a thermal barrier that prevents heat transfer. The insulation particles conform to the space they are blown into, providing a seamless layer of protection against temperature fluctuations.


  • Energy Efficiency: By reducing heat loss through walls and ceilings, blown-in insulation helps lower energy bills.
  • Improved Comfort: Properly insulated homes maintain consistent temperatures throughout, ensuring comfort in all seasons.
  • Environmentally Friendly: Many types of blown-in insulation contain recycled materials, making them eco-friendly choices.
  • Easy Installation: The blowing process allows for quick and efficient installation even in hard-to-reach areas.

Pros and Cons of Blown-In Insulation


Blown-in insulation offers efficient coverage per square foot, filling even the smallest gaps and crevices in attics or walls. It reduces energy bills by maintaining a consistent indoor temperature, leading to long-term cost savings. This type of insulation is easy to install, making it a convenient option for both homeowners and professionals.


One drawback of blown-in insulation is the initial cost, which can be higher compared to traditional insulation materials in terms of value. Moisture accumulation can occur if not installed properly, potentially leading to mold growth and structural damage. Over time, settling may happen, causing the insulation to lose some of its effectiveness.

Environmental Impact

Blown-in insulation is considered environmentally friendly as it is often made from recycled materials like cellulose or fiberglass. By increasing energy efficiency, this type of insulation helps reduce overall carbon emissions from heating and cooling systems. The production process for blown-in insulation typically has a lower environmental impact than other types of insulation.

Installation Areas for Blown-In Insulation

Suitable Areas

Blown-in insulation is ideal for various areas in a house, including attic spaces, wall cavities, and existing walls. The process involves using a blower machine to fill these spaces with insulation material. This method is commonly employed by insulation contractors and can effectively insulate large or irregularly shaped areas.

Blown-in insulation can also be used in exterior walls to improve energy efficiency and provide sound dampening benefits. Homeowners can consult local insulation experts or visit home improvement stores to find the right type of blown-in insulation for their needs. This type of insulation is versatile and can be customized based on the specific requirements of different areas within a home.

Areas to Avoid

While blown-in insulation is versatile, there are certain areas where it should not be installed. For instance, areas prone to moisture such as crawl spaces or damp basements are not suitable for blown-in insulation. Moisture can reduce the effectiveness of the insulation and lead to mold growth. It is essential to address any moisture issues before considering blown-in insulation in these areas.

Furthermore, blown-in insulation should not be installed in areas with blocked ventilation or where air sealing is inadequate. Proper ventilation is crucial for maintaining indoor air quality and preventing issues such as condensation buildup. Insulation contractors typically assess these factors before recommending the installation of blown-in insulation in specific areas of a home.

Specific Considerations

When installing blown-in insulation in wall cavities or attics, it is important to consider the square footage of the area being insulated. Calculating the amount of insulation needed based on the square footage helps ensure optimal coverage and energy efficiency. Homeowners should discuss their budget constraints with insulation contractors to determine the most cost-effective solution for their needs.

Insulation companies may offer different types of blown-in insulation materials that cater to specific installation areas. For example, cellulose insulation is commonly used in wall cavities due to its ability to conform to irregular spaces. Discussing these options with professionals can help homeowners make informed decisions about the best type of blown-in insulation for their living space.

Calculating the Cost of Blown-In Insulation

Factors Influencing

Blown-in insulation cost varies based on several factors such as insulation type, quality, and installation complexity. The square footage of the area being insulated also significantly impacts the overall cost.

Understanding the savings numbers associated with blown-in insulation can help homeowners make informed decisions. By investing in high-quality blown-in insulation, individuals can experience substantial savings on their energy bills over time.

Estimating Total Cost

To estimate the total cost accurately, homeowners should consider the national average cost per square foot for blown-in insulation. Factoring in any additional materials or equipment needed for installation is crucial for an accurate estimation.

When calculating the cost of blown-in insulation, it is essential to account for labor costs if hiring professionals for installation. Homeowners should obtain multiple quotes from reputable contractors to ensure they are getting a fair price.

Comparing Costs

Comparing the cost of blown-in insulation with other types such as fiberglass or foam can provide valuable insights. While blown-in insulation may have a higher upfront cost, its long-term energy savings often outweigh the initial investment.

One advantage of blown-in insulation is its ability to fill small crevices and gaps effectively, providing better overall coverage compared to traditional batt insulation. This superior coverage can result in increased energy efficiency and lower utility bills.

Material Costs for Blown-In Insulation

Types Used

Blown-in insulation commonly uses cellulose or fiberglass materials. Cellulose, made from recycled paper, offers eco-friendly and efficient insulation. On the other hand, fiberglass, composed of fine glass fibers, provides excellent thermal resistance.

Cost Variations

The cost of blown-in insulation varies based on the material used. Cellulose insulation tends to be more affordable than fiberglass. The price difference is primarily due to the manufacturing processes and availability of raw materials.

Quality Impact

Higher-quality materials like fiberglass generally come at a higher price point compared to cellulose. While cellulose offers good thermal performance at a lower cost, fiberglass provides superior durability and resistance to moisture over time.

Budget Considerations

When planning a blown-in insulation project, it’s crucial to consider the impact of material costs on the overall budget. Opting for higher-quality materials may increase upfront expenses but can result in long-term savings on energy bills.

Labor Costs for Installing Blown-In Insulation

Average Costs

The average labor costs for installing blown-in insulation typically range from $40 to $70 per hour. This cost can vary based on the region and the specific insulation material being used.

Blown-in insulation installation is a specialized task that requires skilled labor to ensure proper coverage and efficiency. Professionals usually charge based on the square footage of the area being insulated.

Factors Impacting Costs

Several factors can influence labor costs for blown-in insulation installation. The complexity of the project, accessibility of the space, and any preparation work needed can all affect the final cost.

The type of insulation material chosen can impact labor costs. Some materials may require more intricate installation techniques, leading to higher labor expenses.

Importance of Professional Installation

Opting for professional installation is crucial for ensuring cost-effectiveness in the long run. While DIY projects may seem cost-effective initially, improper installation can lead to energy inefficiency and higher utility bills.

Professional installers have the expertise to assess your home’s specific needs and provide tailored solutions. Their experience ensures efficient installation, maximizing the effectiveness of the insulation and reducing energy costs over time.

Additional Costs and Considerations

Hidden Costs

Blown-in insulation projects may incur hidden costs beyond the initial estimate. These can include expenses for additional materials or unexpected repairs. Homeowners should budget for unforeseen circumstances.

Permits and Regulations

Obtaining permits and complying with regulations can impact the overall cost of blown-in insulation. Depending on the location, permits may be required, adding to the project costs. Failure to adhere to regulations can result in fines.

Long-Term Savings

Despite the upfront expenses, blown-in insulation offers long-term cost savings. By reducing energy consumption, homeowners can see a significant decrease in their utility bills over time. The initial investment often pays off through lower heating and cooling costs.

Maintenance Tips for Blown-In Insulation


Regular maintenance of blown-in insulation is crucial for maintaining energy efficiency and reducing utility costs. Proper upkeep ensures that the insulation continues to perform effectively over time.

To maintain optimal insulation efficiency, homeowners should conduct periodic inspections to check for any signs of damage or wear. Addressing issues promptly can prevent more extensive repairs and help extend the lifespan of the insulation.

DIY Tips

One cost-effective way to maintain blown-in insulation is through DIY efforts. Homeowners can start by sealing any gaps or cracks in walls, windows, and doors to prevent air leaks that can compromise the insulation’s effectiveness.

Another essential maintenance task is to inspect the insulation for any signs of mold growth, which can indicate moisture issues. If mold is present, it’s crucial to address it promptly with proper mold remediation techniques.


Signs that indicate the need for maintenance or replacement of blown-in insulation include a noticeable increase in energy bills, drafts or cold spots in the home, and visible damage to the insulation material.

If there has been a fire in the home, it’s essential to inspect the blown-in insulation for any damage caused by smoke or flames. In such cases, it may be necessary to replace the affected insulation to ensure safety and efficiency.


Now that you have a comprehensive understanding of blown-in insulation, its pros and cons, installation areas, cost breakdown, and maintenance tips, you are well-equipped to make informed decisions for your home. Remember to consider both material and labor costs, along with any additional factors specific to your property. Properly installed insulation can lead to energy savings and increased comfort in your living spaces. Regular maintenance will ensure its efficiency in the long run. Keep these insights in mind as you plan your insulation project.

Frequently Asked Questions

How does blown-in insulation help in reducing energy costs?

Blown-in insulation creates a thermal barrier that helps to regulate indoor temperatures, reducing the need for heating and cooling. This leads to lower energy consumption and cost savings on utility bills.

What are the main advantages of using blown-in insulation?

Blown-in insulation offers excellent coverage, especially in hard-to-reach areas. It is efficient at reducing air leakage, provides soundproofing benefits, and can improve the overall energy efficiency of a home.

Is blown-in insulation suitable for all areas of a house?

Blown-in insulation is versatile and can be installed in various areas such as attics, walls, and crawl spaces. It conforms to different shapes and sizes, making it ideal for insulating irregular spaces where traditional insulation methods may be challenging.

How is the cost of blown-in insulation calculated?

The cost of blown-in insulation is determined by factors like the square footage of the area to be insulated, material costs, labor expenses, additional equipment needed, and any preparatory work required. A professional assessment can provide an accurate estimate.

Are there any maintenance tips for prolonging the effectiveness of blown-in insulation?

Regular inspections to check for settling or damage, addressing any leaks or moisture issues promptly, and ensuring proper ventilation in insulated areas can help maintain the efficiency of blown-in insulation over time.


Discover the true cost of blown-in insulation. Our comprehensive guide includes pros, cons, and accurate pricing information for 2024.