Blown-In Insulation Services in San Jose, CA

Where Should You Install Blown-In Insulation?

Blown-in insulation fills gaps better than traditional batts and works well in irregular spaces or areas that need extra coverage. However, there are some cases when another insulation type may be a better fit. We will first inspect your project and speak with you about your goals, and if we believe there is a better option for your needs, we’ll let you know.

Attics and Roof Cavities

Most heat escapes through the attic, so proper insulation here is critical for energy efficiency. Blown-in insulation is an excellent choice because it fills gaps and voids in the attic floor, preventing heat loss in winter and blocking excessive heat in summer. However, in cases where access is needed for electrical work or storage, fiberglass batts may be a better option for easier removal and reinstallation.

Walls and Hard-to-Reach Spaces

Blown-in insulation works well in existing walls, ceilings, and tight spaces. Unlike batts, which require opening up large sections of walls, blown-in insulation can be installed through small access holes. This makes it a great choice for retrofit projects where removing drywall isn’t an option. It also creates a more uniform thermal barrier, reducing temperature fluctuations from room to room.

Crawl Spaces and Basements

These areas tend to hold moisture, making mold-resistant insulation an important consideration. Blown-in fiberglass and cellulose both work well in crawl spaces and basement ceilings, but proper ventilation is necessary to prevent moisture buildup. If moisture control is a concern, closed-cell spray foam may be a better option in these areas.

Commercial Buildings and Offices

Blown-in insulation isn’t just for homes. Offices, warehouses, and multi-unit buildings benefit from its ability to reduce heating and cooling costs. It also improves soundproofing, making workspaces quieter and more comfortable.

Will Blown-In Insulation Work For You?

Choosing the right insulation depends on budget, energy goals, and the areas being insulated. Here’s how blown-in insulation compares to other options.

Performance and Energy Savings Compared to Fiberglass Batts

Blown-in insulation does a better job of filling gaps, which means fewer air leaks and more even coverage. It has an R-value of 3.2 to 4.0 per inch, making it comparable to fiberglass batts but with superior coverage. Unlike batts, which can leave small spaces uninsulated, blown-in insulation forms a seamless thermal barrier that keeps your home more consistent in temperature year-round.

Cost Considerations

Blown-in insulation costs between $1.00 and $1.50 per square foot, depending on the material used. Fiberglass batts range from $0.30 to $1.50 per square foot, while spray foam insulation is more expensive, starting at $0.44 per board foot for open-cell and $1.00 per board foot for closed-cell. While blown-in insulation sits in the mid-range for pricing, it offers excellent long-term energy savings and a quick installation process.

Installation Process and Timeline

Blown-in insulation can be installed in just a few hours for most homes, making it one of the fastest ways to improve energy efficiency. A small access hole is drilled (for wall installations), and insulation is blown in using specialized equipment. For attics, insulation is evenly distributed across the attic floor to create a continuous thermal barrier. Unlike spray foam, there’s no curing time, and the space can be used immediately after installation.

Moisture and Fire Resistance

Cellulose blown-in insulation is treated with fire retardants and pest-resistant additives, making it safer than older insulation materials. Fiberglass blown-in insulation is naturally non-combustible. If moisture control is a concern, fiberglass is the better option since it resists water absorption. Cellulose performs well in dry spaces but may retain moisture if exposed to leaks or humidity.

Soundproofing Benefits

Blown-in insulation improves soundproofing between walls and floors, making it a great choice for multi-story homes, apartments, and office buildings. Cellulose is particularly effective at absorbing sound, reducing noise from outside or between rooms.

Complimentary Estimate for Blown-In Insulation in San Jose, CA

If you’re considering blown-in insulation for your home or business, EM Energy & Air is ready to help. We provide free, on-the-spot estimates, fast installation times, and the best labor warranties in the industry. We use high-quality American-made materials and offer financing options to make insulation upgrades affordable.

Contact us today to schedule a complimentary consultation and estimate. Let’s make your home or business more energy-efficient, comfortable, and cost-effective with top-tier blown-in insulation services in San Jose, CA.