Table of Contents
1. Introduction
2. Why Consider Blown Attic Insulation?
3. Factors That Determine the Cost of Blown Attic Insulation
4. Blown Attic Insulation vs. Traditional Insulation Methods
5. Q&A: Common Questions About Blown Attic Insulation
6. Conclusion
Introduction
If you’re looking to lower your energy bills and enjoy a more comfortable home year-round, blown attic insulation deserves your attention. By filling every crevice in your attic with loose-fill material, this method creates a seamless thermal barrier that keeps warm air inside during winter and hot air out in summer. In this article, we’ll reveal the surprising cost of blown attic insulation, explain why it’s often the smartest investment you can make, and help you decide if it’s the right choice for your home.
Why Consider Blown Attic Insulation?
Blown attic insulation offers a range of benefits that go beyond simple temperature control:
• Superior Air Sealing: Unlike batt insulation, loose-fill fibers settle into every nook and cranny, eliminating drafts and reducing air leakage.
• Energy Savings: Properly insulated attics can cut heating and cooling costs by up to 20%, according to the U.S. Department of Energy.
• Improved Comfort: A well-insulated attic maintains even temperatures throughout your home, preventing cold spots in winter and overheating in summer.
• Noise Reduction: Dense insulation fibers absorb sound, creating a quieter indoor environment.
• Rapid Installation: Professional crews can install most blown insulation jobs in a single day, minimizing disruption to your household.
Factors That Determine the Cost of Blown Attic Insulation
Understanding what drives the price can help you budget effectively and avoid unwelcome surprises:
Attic Size and Layout
• Square Footage: The larger the space, the more insulation material you’ll need, which directly increases material costs.
• Obstructions and Access: Tight eaves, ductwork, and wiring can complicate installation, adding labor hours and boosting the overall price.
Insulation Material
• Fiberglass: Averaging $0.75 to $1.50 per square foot, fiberglass is the most affordable option and offers good thermal performance.
• Cellulose: Priced between $1 and $1.80 per square foot, cellulose is eco-friendly—made from recycled paper—and provides a higher R-value per inch.
• Mineral Wool: At $1.50 to $2.50 per square foot, mineral wool is the priciest choice but excels in fire resistance and soundproofing.
Removal of Old Insulation
If your attic already contains deteriorated or contaminated insulation, removal fees can range from $0.50 to $2 per square foot, depending on material type and disposal requirements.
Labor and Region
Labor rates vary by location. Urban areas and regions with higher living costs will pay more per hour for professional installers. Always compare multiple quotes to find a balance between price and quality.
Typical Cost Range
For most 1,000- to 1,500-square-foot attics, homeowners can expect to invest between $1,500 and $3,000 for a professional blown attic insulation installation, including materials, labor, and any necessary removal of old insulation.
Blown Attic Insulation vs. Traditional Insulation Methods
Choosing the right insulation type depends on your home’s unique needs and your budget:
Batt Insulation
• Pros: Lower upfront cost per roll; DIY-friendly for simple layouts.
• Cons: Prone to gaps around joists and obstructions; less effective air sealing.
Spray Foam Insulation
• Pros: Exceptional air sealing and high R-values; adds structural rigidity.
• Cons: Highest cost per square foot; requires specialized installers.
Blown Attic Insulation
• Pros: Quick installation; fills hard-to-reach spaces; balances cost and performance.
• Cons: Settling over time can slightly reduce R-value; may require topping up after several years.
Q&A: Common Questions About Blown Attic Insulation
Q: How long does blown attic insulation last?
A: Most blown insulation materials, when properly installed, can last 20–30 years. Cellulose may settle more than fiberglass, so occasional top-offs help maintain performance.
Q: Can I install blown attic insulation myself?
A: DIY installation is possible if you rent the blower machine and follow manufacturer guidelines. However, improper installation can lead to uneven coverage and reduced energy savings. Hiring a professional ensures consistent, code-compliant results.
Q: Will blown insulation attract pests?
A: Quality blown insulation products are treated to resist mold and pests. Proper attic sealing and ventilation further discourage rodents and insects.
Q: Are there any rebates or tax credits available?
A: Many utility companies and federal programs offer incentives for energy-efficient home upgrades, including attic insulation. Check with your local energy provider and visit EnergyStar.gov for current rebate opportunities.
Conclusion
Investing in blown attic insulation is one of the most cost-effective ways to slash your energy bills, enhance indoor comfort, and boost your home’s value. Although the average investment ranges from $1,500 to $3,000, the long-term savings—often recouped within just a few years—make this upgrade worthwhile. If you’re ready to stop wasting money on an inefficient attic and start enjoying lower utility costs, consider professional blown attic insulation as your next home improvement project.
