Your Questions About RetroFoam, Answered

RetroFoam is a high-performance injection foam insulation designed specifically for existing homes. It's installed by drilling small holes in exterior walls and injecting foam that fills the wall cavity completely—without removing drywall or siding.

Blown-in insulation (cellulose or fiberglass) relies on gravity and can settle over time, leaving gaps at the top of walls. RetroFoam expands to fill the entire cavity and does not settle, providing long-term, consistent performance.

Yes. RetroFoam is:

• Non-toxic
• Formaldehyde-free
• No off-gassing
• No lingering odors

It is safe for families, pets, and people with chemical sensitivities. Once installed, it is inert and stable.

No. Installation requires small access holes (about the size of a quarter), which are professionally patched after installation. Most homeowners cannot tell where the holes were once the job is complete.

Most RetroFoam wall insulation projects are completed in one day, with minimal disruption to your home. You can stay in the house during installation.

RetroFoam is designed to last for the life of your home. It does not shrink, settle, or degrade over time.

RetroFoam is also the only wall insulation product backed by a lifetime warranty for as long as you own your home.

Most homeowners see immediate improvements in comfort and noticeable reductions in heating and cooling costs. By eliminating air gaps and thermal leakage, RetroFoam allows your HVAC system to run more efficiently.

Yes. Cold walls and drafts are usually caused by missing or settled insulation. RetroFoam fills the entire wall cavity, stopping air movement and eliminating cold spots.

RetroFoam provides meaningful sound dampening, especially for street noise and neighborhood sounds. While it's not soundproofing, many homeowners report noticeably quieter interiors.

RetroFoam often qualifies for:

• Federal energy efficiency tax credits
• Utility rebates, depending on location and utility provider

Availability varies by year and program.

RetroFoam is ideal for:

• Homes built before modern insulation codes
• Homes with cold walls, drafts, or high energy bills
• Homeowners planning to stay long-term and want a permanent solution

A free assessment helps determine whether your walls are suitable.