Full Attic Restoration with R38 Insulation Upgrade to Improve Comfort and Efficiency in Fresno, CA

Gilbert reached out to us because his home in Fresno wasn’t staying comfortable, and his HVAC system was constantly running to keep up. When we inspected his attic, we found just 5 inches of old fiberglass insulation—far below what’s needed to properly insulate a Central Valley home. On top of that, the insulation was dirty, which pointed to air leakage and possible contamination from past rodent activity.

We recommended a full attic restoration to address the problem at its source.

Our team began by safely extracting and disposing of the old fiberglass insulation. Once the attic was cleared out, we thoroughly cleaned and sanitized the space using Nisus DSV, a professional-grade disinfectant that eliminates bacteria, viruses, and odors. We then sealed all major air leakage points—such as top plates, plumbing and wire penetrations, and HVAC registers—using closed-cell foam. This step helps prevent conditioned air from escaping into the attic.

We also installed barriers at any visible rodent entry points and cleared out the soffit vents to improve attic ventilation. Finally, we completed the restoration by blowing in 14 inches of premium fiberglass insulation, bringing the attic up to the Energy Star recommended R38 level.

Gilbert will now enjoy a home that stays cooler in the summer and warmer in the winter, with better indoor air quality and reduced energy bills for the long term.