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Fox Cities RetroFoam is now Mammoth Home Renovations – Your authorized RetroFoam dealer for Northern Wisconsin!

Spray Foam Insulation

High-Quality Spray Foam Insulation in Appleton, Green Bay, Shawano, Wausau and Surrounding Areas

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Spray Foam Insulation for Residential & Commercial Insulators

You’ll notice immediate results. When you schedule our top-tier spray foam insulation services in Appleton, Green Bay, Shawano, Wausau, Stevens Point, WI, or nearby areas, we can insulate crawl spaces, attics, box sills, walls, and more. Our work significantly dampens sound coming through your walls. Airtight insulation will enhance your comfort in both winter and summer, now and for years to come.

Our services include insulating the following:

  • Crawl Spaces
  • Sill Boxes
  • Walls
  • Attics
  • Barns
  • Buildings
  • Enclosed Trailers
  • And MORE!
Mammoth Renovations Installer applying Spray Foam Insulation to the wall of a garage.

The Department of Energy estimates that up to 50% of your home's energy loss is due to air leakage. Spray foam insulation could be your solution for new construction, or we can retrofit existing areas like garages, joists, basements, attics, and more to create an airtight seal.

Mammoth Renovations Installer applying Spray Foam Insulation to the ceiling of a basement

Spray foam insulation forms an air barrier and eliminates dew points, making it ideal for insulating complex roof assemblies. You can rely on our expertise to install spray foam insulation in your existing structure.

More reasons to use spray foam:

  • Eliminate drafts
  • Reduce humidity and moisture
  • Reduces mold growth
  • Creates a seamless air barrier
  • Adds to structural strength
  • Reduced energy costs


Before installing spray foam insulation, consider air sealing your home for additional benefits. Using thermal imaging equipment, we can provide you with before and after images showing where air leaks have been sealed in your building.

Give us a call today for a free estimate on services in spray foam insulation in Appleton, Green Bay, Shawno, Wausau, WI and neighboring areas rely on!

Applications of Spray Foam Insulation

New construction

Spray foam insulation is an excellent choice for new construction homes. Since the wall cavities are still exposed, spray foam can be easily applied to create an effective air seal. This type of insulation is energy-efficient and helps prevent air leaks, making your home more comfortable and reducing energy costs. Unlike traditional insulation materials, spray foam expands to fill every gap, crack, and crevice, preventing drafts and reducing heat loss in the winter and heat gain in the summer. This leads to significant savings on energy bills while maintaining a more comfortable indoor environment year-round.

In addition to its superior insulating properties, spray foam also adds structural strength to your home and helps to block out moisture, reducing the risk of mold and mildew growth. It is a long-lasting solution that not only improves comfort and energy efficiency but also enhances the overall durability and longevity of your new home.

Crawl Spaces & Rim Joists

Spray foam insulation is a great option for insulating crawl spaces and sill boxes. It creates an air seal that helps prevent cold air from infiltrating your home, which can improve energy efficiency and comfort. By filling all the cracks, crevices, and gaps of these often-overlooked areas, spray foam ensures that these areas are well-insulated to eliminate cold floors and reduce energy loss. 

Additionally, spray foam insulation adds structural rigidity and helps block outdoor allergens and pests from entering the home. This not only improves the energy efficiency and comfort of your home but also protects the health and well-being of your living environment.

Pole Buildings

Spray foam insulation is an ideal choice for pole barns. It provides a consistent and uniform appearance, eliminates concerns about falling insulation, and ensures effective insulation. Closed-cell spray foam is particularly recommended for pole barns due to its durability and density. It can be left exposed without damage and creates a strong air seal.

Spray foam insulation is an excellent choice for insulating pole barns, offering superior energy efficiency and moisture control. By creating a seamless air barrier, spray foam minimizes air leaks and prevents condensation, which is crucial for maintaining stable temperatures and protecting stored items from rust, mold, or mildew. This insulation also enhances the structural integrity of the building by adding rigidity to the walls.

Additionally, spray foam insulation provides long-term savings by reducing heating and cooling costs, making it an ideal investment for pole barns used for agriculture, workshops, or storage. Its durability ensures lasting performance, keeping your barn well-insulated and comfortable year-round.

Still have questions about spray foam insulation?
Visit our FAQ page or give us a call today.