How Much Does Blown-In Attic Insulation, Insulation Being Installed.

How Much Does Blown-In Attic Insulation Cost? A Homeowner’s Guide


If you’re hearing noises in your attic or noticing those energy bills creeping upwards, it might be time to consider upgrading your attic insulation. Blown-in insulation is a popular choice for its effectiveness and affordability. But how much can you expect to pay to have it professionally installed? While prices can range from roughly a dollar to a few dollars per square foot, there’s more to the story. Let’s dive in and explore the factors that influence the cost of blown-in attic insulation.

Factors That Affect Blown-in Insulation Costs

Before we talk numbers, it’s important to understand what influences the final price tag:

  • Attic Size: Quite simply, a larger attic requires more insulation material and labor.
  • Desired R-value: This rating tells you how well the insulation resists heat flow. Higher R-values mean better energy efficiency but also more material to install. Your local climate and building codes often suggest a minimum R-value.
  • Type of Insulation: Common blown-in insulation materials include fiberglass, cellulose, and mineral wool. Pricing varies between these options, with fiberglass typically being the most budget-friendly.
  • Accessibility and Existing Insulation: Is your attic easily accessible? Crawl Spaces or difficult layouts can increase labor time. If old insulation needs removal, this will add to the cost.
  • Your Location: Prices can fluctuate slightly based on regional material costs and labor rates.

Price Ranges to Expect

While these ranges give you an idea, always get personalized quotes:

  • DIY Blown-In Insulation: Renting a blower and purchasing materials might cost $0.50 – $1.50 per square foot. This doesn’t include the cost of protective gear, tool rentals, or your time.
  • Professional Installation: Generally, expect to pay between $1 – $3 per square foot for professionally installed blown-in insulation.

Example: A 1,500 square foot attic insulated to R-49 with blown-in fiberglass could cost between $1,500 and $4,500 with professional installation.

How to Save Money on Blown-In Insulation

  • Compare, Compare, Compare: Get at least three detailed quotes from reputable insulation companies. Ask about the specific materials and R-values included.
  • Timing Matters: Consider scheduling the work during the off-season (fall or winter) for potentially lower prices.
  • Look for Rebates: Your local utility company or state government may offer incentives for improving your home’s energy efficiency. Check resources like the Database of State Incentives for Renewables & Efficiency (

Why Professional Installation Might Be Worth It

While DIY can seem tempting, here’s why hiring a pro is often a better long-term investment:

  • Expertise: Experienced installers understand proper techniques, achieving the desired R-value and preventing air leaks that can negate your insulation efforts.
  • Safety: They have the safety gear and know-how to handle insulation materials without risk.
  • Equipment: Pros have specialized blowers, ensuring even insulation distribution, crucial for optimal performance.
  • Potential Rebates: Some incentives require professional installation to qualify.

Key Takeaways

  • Blown-in attic insulation offers an effective way to improve home comfort and lower energy bills.
  • Prices vary based on individual factors like attic size, materials, and location.
  • Getting multiple quotes is essential to find the best price.
  • Professional installation might save you money in the long run due to increased efficiency and potential rebates.


Upgrading your attic insulation is a worthwhile investment in your home. If you have questions about blown-in insulation costs or would like a personalized assessment, don’t hesitate to contact us. Our experts are ready to help you determine the best solution for your home and budget!

Disclaimer: This blog post provides general pricing information. For accurate estimates, always consult with a licensed insulation contractor in your area.


Looking to upgrade your attic insulation but not sure where to start? Contact us today for expert guidance and professional services tailored to your home’s specific needs.