Blown-In Insulation Service: Average Cost & Types – Find the Best Deals!

Did you know that the average cost of blown-in insulation in an attic can save you up to 30% on energy bills annually? Investing in a blown-in insulation service for your attic not only helps in reducing energy costs but also enhances the comfort of your home by maintaining a consistent temperature throughout the year, benefiting homeowners. By understanding the cost of blown-in insulation for your attic, you can make an informed decision to improve your home’s energy efficiency and overall value.

Understanding Blown-In Insulation


Blown-in insulation, also known as loose-fill insulation, involves using a blower machine to blow small particles of materials like fiberglass or cellulose into attics and walls in new construction and for repairs. This method helps fill gaps and spaces efficiently.

Installation Process

The installation of blown-in insulation is relatively quick and straightforward. A professional installer will use a blower machine to blow the insulation material into the desired areas, ensuring even coverage in attic spaces and walls of homes. This process is ideal for reaching tight or irregular spaces that are challenging to access with traditional insulation methods.


  • Energy Efficiency: Blown-in insulation, installed in walls and attic, creates a seamless barrier that helps regulate indoor temperature, reducing the load on heating and cooling systems.
  • Cost-Effective: Despite the initial investment, the average cost of blown insulation in the attic pays off through energy savings in the long run.
  • Soundproofing: The dense nature of blown-in insulation helps absorb sound, making it an excellent choice for noise reduction in homes.

Types of Blown-In Insulation


Fiberglass blown-in insulation consists of tiny glass fibers and is one of the most common types used in attics. It provides excellent thermal performance for walls and attic and is relatively easy to install. However, it can be irritating to the skin and respiratory system during installation.


Cellulose blown-in insulation is made from recycled paper materials treated with chemicals for fire resistance. It is a cost-effective option that provides good thermal performance for the attic. However, it may settle over time, reducing its effectiveness.

Eco-Friendly Options

For those looking for environmentally friendly options and value, recycled denim or wool insulation in the attic are great choices. These materials offer sustainable solutions while providing effective thermal insulation. Moreover, they are non-toxic and do not irritate the skin like fiberglass.

Average Costs of Blown-In Insulation

Cost per Square Foot

Blown-in insulation services typically cost around $1 to $3 per square foot. This cost may vary depending on factors such as the size of the area to be insulated, attic, and the type of material used.

Material Breakdown

The cost differences between materials used in blown-in insulation can impact the overall price significantly. Fiberglass, cellulose, and mineral wool are common materials used, each with its own price range. Fiberglass tends to be on the lower end, while mineral wool is usually more expensive.

National Average Estimates

On a national average, homeowners can expect to pay between $1,400 and $2,000 for blown-in insulation installation in their attics. However, this cost can fluctuate based on regional pricing variations and the specific requirements of the project.

Factors Influencing Insulation Costs

Attic Size

The size of the attic plays a crucial role in determining the overall cost of blown-in insulation. A larger attic area will require more insulation material, resulting in higher costs. Conversely, smaller attics will incur lower expenses for insulation installation. The square footage of the attic directly correlates with the amount of insulation needed, impacting the final price significantly.

Insulation Material Choice

The choice of insulation material is another key factor influencing the cost of blown-in insulation in attics. Different types of insulation materials come at varying price points. For example, fiberglass and cellulose are common options with different costs per square foot. Homeowners can select from these materials based on their budget and desired insulation performance. The material chosen will directly impact the total cost of the insulation project.

Additional Factors

Apart from attic size and insulation material choice, several additional factors can influence the overall cost of blown-in insulation. Labor costs play a significant role as they include expenses related to installation, equipment, and laborers’ wages. The complexity of the job and any preparatory work required before installing the insulation can also affect pricing. Moreover, geographical location plays a vital role in determining costs due to varying market prices and availability of materials in different regions.

Blown-In Insulation by Square Foot

Cost Range

Blown-in insulation typically costs between $1.50 to $3.50 per square foot. This cost can vary based on factors such as the type of material used, the size of the area being insulated, and the complexity of the installation process.

Material Impact

The type of insulation material chosen significantly impacts the cost per square foot. Fiberglass insulation, one common option, is usually cheaper compared to cellulose insulation. Fiberglass generally falls within the lower end of the cost range, making it a more budget-friendly choice for homeowners.

Total Costs Examples

For a small attic space of around 500 square feet, using fiberglass blown-in insulation could cost approximately $750 to $1,750. On the other hand, insulating a larger attic of 1,000 square feet with cellulose blown-in insulation might range from $1,500 to $3,500.

Additional Costs and Considerations

Potential Extra Costs

  • Labor Costs: Expect additional labor costs for complex installations or hard-to-reach areas.
  • Material Upgrades: Upgrading to premium materials can increase material costs significantly.
  • Removal of Existing Insulation: Removing old insulation before installing blown-in insulation can add to the project costs.

Importance of Proper Ventilation and Air Sealing

Proper ventilation and air sealing are crucial for maximizing the effectiveness of blown-in insulation. Without adequate ventilation, moisture buildup can lead to mold growth and decreased indoor air quality. Similarly, poor air sealing can result in energy loss and reduced efficiency of the insulation. Ensuring proper ventilation and air sealing will not only enhance the performance of the insulation but also contribute to a healthier indoor environment.

Rebates and Incentives

  • Energy Efficiency Rebates: Many utility companies offer rebates for homeowners who upgrade to more energy-efficient insulation solutions.
  • Tax Credits: Homeowners may be eligible for tax credits when they invest in energy-saving home improvements, including blown-in insulation.
  • Incentive Programs: Some local or state programs provide incentives for improving home energy efficiency, which could help offset the initial installation costs.

Pros and Cons of Blown-In Insulation

Energy Efficiency

Blown-in insulation is known for its energy-saving benefits, reducing heating and cooling costs significantly over time. It helps maintain a consistent temperature in the home.

Blown-in insulation is effective at filling gaps and hard-to-reach areas, ensuring better energy efficiency compared to other insulation types. This can lead to lower utility bills.

Moisture Concerns

One potential issue with blown-in insulation is moisture accumulation, which can occur if not installed properly. Moisture can lead to mold growth and affect indoor air quality.

Improper installation or ventilation issues can result in moisture problems, highlighting the importance of hiring a professional for blown-in insulation services.

Settling Problems

Over time, blown-in insulation may experience settling, causing it to compact and lose its effectiveness. Regular maintenance and inspections are essential to address settling issues promptly.

Compared to batt insulation, which can shift and leave gaps over time, blown-in insulation offers better coverage and reduces the risk of heat loss through gaps.

Advantages Over Other Types

  • Efficiency: Blown-in insulation provides superior coverage, reaching tight spaces that traditional batt insulation might miss.
  • Cost-Effectiveness: While the initial cost may be higher, the long-term savings on energy bills make blown-in insulation a cost-effective choice.
  • Eco-Friendly: Made from recycled materials like cellulose or fiberglass, blown-in insulation is an environmentally friendly option.

Disadvantages Compared to Other Types

  • Moisture Susceptibility: Improper installation can lead to moisture issues, impacting indoor air quality.
  • Settling Concerns: Regular maintenance is crucial to prevent settling problems that reduce the insulation’s effectiveness.
  • Professional Installation Required: Unlike some DIY-friendly options, blown-in insulation typically requires professional installation for optimal results.

Saving Money on Insulation Installation

Efficient Installation

When considering blown-in insulation services, opt for local experts to save on transportation costs. Local professionals can offer competitive rates due to reduced travel expenses.

To further reduce the average cost of blown insulation in the attic, focus on energy efficiency. Proper air sealing is crucial for maximizing insulation effectiveness and lowering energy bills.

Long-Term Savings

Investing in insulation not only decreases immediate expenses but also leads to significant long-term savings. Improved insulation helps regulate indoor temperatures, reducing reliance on heating and cooling systems.

Enhancing sound dampening through quality insulation can also contribute to a more comfortable living environment. Thicker materials can effectively minimize noise from outside disturbances.

Financial Assistance

When exploring cost of blown-in insulation for the attic, consider financing options available. Some providers offer payment plans or loans to help spread out the initial investment over time.

Inquire about any potential tax credits or rebates for upgrading your home’s insulation. Taking advantage of these incentives can offset installation costs and provide additional savings in the long run.


You’ve gained a comprehensive understanding of blown-in insulation, its types, costs, and influencing factors. By exploring the pros and cons, as well as money-saving tips, you are now equipped to make informed decisions regarding your insulation needs. Remember, proper insulation not only enhances your comfort but also reduces energy bills and contributes to a greener environment. Take charge of your home’s efficiency by considering blown-in insulation as a cost-effective solution. Ensure you consult with professionals to assess your specific requirements and enjoy the benefits of a well-insulated home. Your comfort and savings await!

Frequently Asked Questions

What is blown-in insulation and how does it work?

Blown-in insulation involves spraying or blowing insulation material into attics or walls to create a thermal barrier. It fills gaps and cavities more efficiently than traditional insulation, providing better energy efficiency for your home.

How much does blown-in insulation cost on average?

The average cost of blown-in insulation in an attic ranges from $1.50 to $3.50 per square foot. Factors like the type of insulation material, your location, and the size of the area being insulated can influence the total cost.

What are the pros and cons of using blown-in insulation?

Pros: Provides excellent coverage, energy efficiency, and soundproofing. It can be installed quickly and easily in hard-to-reach areas. Cons: Initial installation costs can be higher than other types of insulation. It may settle over time, reducing its effectiveness.

How do additional factors influence the cost of blown-in insulation?

Factors such as the R-value (insulation’s effectiveness), accessibility of the installation area, labor costs, and any prep work needed can impact the overall cost of blown-in insulation. Higher R-values or difficult-to-reach spaces may increase costs.

Can I save money on blown-in insulation installation?

To save money on installation, consider getting multiple quotes from different contractors to compare prices. You can also look for local rebates or incentives for energy-efficient upgrades that could offset some of the initial costs.


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