Blown-In Insulation

Professional Blown-In Insulation Services in Mattoon, IL

Blown-in insulation, also known as loose-fill insulation, represents the most effective solution for adding thermal protection to attics, existing walls, and hard-to-reach spaces without major construction or disruption to your daily life. At Insulation Service, we utilize specialized blowing equipment to distribute high-performance cellulose or fiberglass material evenly across your attic floor or into sealed wall cavities—reaching every corner, gap, and void that traditional batts simply cannot access. This seamless application creates a continuous thermal blanket that stops heat loss through ceiling penetrations, reduces air infiltration, and dramatically improves overall energy efficiency. Whether your home was built decades ago with inadequate insulation or you simply want to maximize comfort in a newer construction, our blown-in solutions provide an economical path to significant energy savings. We proudly serve homeowners, farmers, and business owners throughout Mattoon and Central Illinois, transforming under-insulated spaces into high-performance thermal barriers.

Why Choose Insulation Service for Your Blown-In Insulation Project?

When you choose Insulation Service for your blown-in insulation needs, you are selecting a team with decades of experience in achieving precise coverage and proper density—two factors critical to long-term performance. As a locally owned and veteran-operated company established in 1974, we understand that blown-in insulation requires calibrated equipment and trained expertise to achieve the exact R-value you are paying for without settling gaps or void areas. Our technicians carefully calculate the required depth and number of bags needed for your specific space, ensuring you receive maximum value and thermal protection from your investment.

We offer both cellulose and fiberglass blown-in insulation to precisely match your specific requirements, performance goals, and budget considerations. Cellulose blown-in insulation is manufactured from recycled paper products—typically newsprint—treated with borate-based fire retardants and pest inhibitors, making it an eco-friendly choice with excellent sound-dampening properties and natural resistance to mold and insects; it settles into a dense, air-blocking blanket that effectively reduces air infiltration through attic floors. Fiberglass blown-in insulation consists of fine glass fibers that create a fluffy, lightweight thermal barrier that resists moisture absorption and will not settle significantly over time; it is naturally non-combustible and provides reliable thermal performance without the density of cellulose. During your free consultation, we will use advanced calculations to determine the exact depth and R-value needed for your specific attic or wall cavity, factoring in your local climate, existing insulation levels, and budget constraints. For existing wall applications, we drill small access holes in each stud cavity, blow insulation under pressure to fill completely, and then professionally patch all openings—leaving no visible evidence of our work while your walls perform like new.

Frequently Asked Questions

How is blown-in insulation installed in existing walls?

For existing walls, we drill small holes (typically one to two inches in diameter) in each stud cavity, either from the interior or exterior depending on accessibility. Using specialized blowing equipment, we inject insulation under pressure to fill the entire cavity completely and uniformly. The holes are then patched and repaired, leaving no visible sign of the work.

Attic R-values typically range from R-30 to R-60 depending on your location and energy goals. We can achieve R-38 (about 12 to 14 inches depth) or higher in most attics. Wall cavities receive R-13 to R-15 equivalent performance depending on wall depth and insulation type selected.

All blown-in insulation experiences some initial settling, which our experienced installers account for by overfilling slightly to achieve your target R-value after settling. Cellulose settles more than fiberglass, but our team calculates the exact settled depth needed to ensure long-term performance.

 Yes. Our cellulose insulation is treated with borate-based fire retardants that provide excellent fire resistance and meet all building code requirements. Fiberglass is naturally non-combustible and will not burn. Both materials exceed safety standards for residential and commercial applications.

Most attic insulation projects are completed in a single day. Wall insulation in existing homes typically takes one to two days depending on home size and number of stories. We will provide a specific timeline during your free estimate based on your project scope.

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Other Services

Crawlspace Insulation Services

High-performance spray foam insulation that seals air leaks, improves energy efficiency, and provides superior thermal protection for homes, commercial buildings, and agricultural structures.

Residential Blown-In Insulation

Efficient blown-in insulation solution ideal for attics, walls, and crawlspaces, helping to eliminate air gaps and maintain consistent indoor temperatures year.

Commercial Blown-In Insulation

Durable fiberglass wall insulation designed to enhance temperature control, reduce energy costs, and improve indoor comfort in the residential and commercial.