An affordable insulation upgrade for Norman's older homes near OU and throughout the city's 1960s-80s subdivisions. Blown-in cellulose and fiberglass restore lost R-value fast.
Norman is one of the largest cities in the OKC metro, home to the University of Oklahoma and a community that blends college-town energy with established family neighborhoods. Much of Norman's residential growth occurred during the 1960s, 1970s, and 1980s, producing thousands of homes that are now 40 to 60 years old. These homes were built when attic insulation standards called for R-11 to R-19 — far below the R-38 to R-49 recommended today. Worse, the fiberglass batts installed during original construction have settled, compressed, and degraded over the decades, often providing less than half their original R-value. Blown-in insulation is the simplest, fastest, and most affordable way to bring these Norman attics back to modern standards.
Bo's Insulation has served Norman homeowners for over eight years, and we understand the specific challenges this city's housing stock presents. From the compact bungalows near the OU campus to the ranch-style homes scattered along 12th Avenue and Robinson Street, to the split-level houses in neighborhoods off Alameda Street, Norman offers a diverse cross-section of mid-century and late-century residential construction — and virtually all of it benefits from additional attic insulation. Our 5.0-star rating across 89+ reviews reflects the consistent quality and honest approach we bring to every Norman project.
Norman's building boom from the 1960s through the 1980s coincided with an era of relatively lax insulation standards. Builders installed thin fiberglass batts in attics — typically R-11 or R-13 — and considered the job done. By today's energy codes and Department of Energy recommendations, those levels are grossly inadequate. Oklahoma falls in climate zone 3A, where the DOE recommends R-38 to R-60 in attic spaces. The gap between what most Norman homes have and what they should have is significant, and it shows up directly on monthly energy bills.
The physics are straightforward. Heat rises, and during Norman's winter months — when temperatures regularly dip into the teens and twenties — warm air from your heated living space pushes upward through inadequate attic insulation and escapes into the cold attic above. Your furnace runs longer, your gas bill climbs, and your home never feels quite warm enough. In summer, the equation reverses: Norman's brutal July and August heat — routinely above 100 degrees — turns an under-insulated attic into an oven that radiates heat downward into your rooms, forcing your AC to work overtime.
Blown-in insulation solves this problem efficiently because it can be installed directly over existing insulation. There is no need to tear out the old batts in most cases. Our crew simply blows cellulose or fiberglass on top of what is already there, filling gaps, covering exposed areas, and building the total R-value up to modern standards. For a typical Norman home, this process takes 3 to 5 hours and the energy savings are immediate.
Blown-in insulation uses pneumatic equipment to distribute loose-fill insulation material evenly across your attic floor. Bo's Insulation offers Norman homeowners two proven material options:
Cellulose is made from recycled paper products treated with borate-based fire retardants and pest deterrents. It provides approximately R-3.5 per inch and is denser than fiberglass, giving it superior resistance to convective air currents. For Norman homeowners living near the OU campus or along busy corridors like Main Street and Lindsey Street, cellulose also offers noticeably better sound dampening than fiberglass. The borate treatment deters insects and rodents — a practical benefit given Norman's proximity to the South Canadian River bottomlands where pest pressure can be higher than average.
Fiberglass blown-in insulation consists of spun glass fibers that trap air to resist heat flow. It delivers R-2.5 to R-3.2 per inch, settles less than cellulose over time, and does not absorb moisture. For Norman homes where attic humidity or past roof leaks are a concern — particularly older homes with less-than-perfect roof ventilation — fiberglass is the safer long-term choice. It is also lighter than cellulose, which matters in some older Norman homes where ceiling joists are smaller dimensional lumber.
Blown-in insulation is the most cost-effective insulation upgrade available to Norman homeowners:
Because so many Norman homes already have some existing insulation, top-up projects are common and cost less than starting from scratch. A 1970s ranch home near Berry Road with R-13 existing insulation might only need 10 inches of additional cellulose to reach R-49 — a project that could cost $1,000 to $1,600. Bo's Insulation provides free, detailed estimates so you know the exact cost before any work begins.
While blown-in insulation is the most affordable starting point, some Norman homes benefit from complementary insulation work:
Blown-in insulation in Norman costs $1.00 to $2.50 per square foot. A typical 1,200 to 1,400 square foot Norman attic runs $1,300 to $2,800 to bring up to R-49. Top-up projects over existing insulation cost less. We provide free estimates with exact pricing for your specific home.
Norman grew rapidly from the 1960s through the 1980s, and homes built during that era were insulated to standards far below today's recommendations. Original fiberglass batts have settled over decades, often providing less than half their original R-value. Blown-in insulation restores proper thermal protection without removing the old material.
If your attic insulation was displaced or contaminated by storm damage, blown-in insulation is the fastest and most affordable replacement option. We can assess the condition of your existing insulation and either top it off or replace what was damaged. Call us after any significant storm event for a free inspection.
Cellulose is our go-to recommendation for most Norman attics due to its density and built-in pest deterrent. For homes near the OU campus, cellulose also dampens sound better than fiberglass. If moisture is a concern in your attic, fiberglass is the safer option. We evaluate your specific conditions during our free estimate.
Blown-in insulation is the fastest, most affordable way to improve your Norman home's comfort and energy efficiency. Get your free estimate — 20% of your project supports a local nonprofit.