Are you tired of skyrocketing energy bills and drafty rooms in your Oshkosh home or business? Proseal Spray Foam is your premier local partner for high-performance insulation designed to withstand the harsh Wisconsin elements. From historic downtown renovations to modern commercial builds near Lake Winnebago, we provide precision-engineered spray foam and air sealing solutions that guarantee a lifetime of comfort, superior indoor air quality, and maximum thermal efficiency.
At Proseal Spray Foam, we understand that Oshkosh properties face unique challenges, from high humidity near the lakes to freezing winter temperatures. Our team specializes in creating airtight building envelopes that go beyond traditional insulation. By utilizing advanced thermal imaging and industry-leading materials, we eliminate cold spots and moisture infiltration, ensuring your interior environment remains stable and cost-effective year-round. Whether you are upgrading an attic or insulating a new commercial facility, our local expertise ensures your project meets the highest standards of the Wisconsin building code.




Choosing the right contractor means the difference between a temporary fix and a permanent solution. At Proseal Spray Foam, we don’t just "install insulation"—we optimize your entire building's performance. Our commitment to using premium materials and meticulous site preparation ensures that every job is done right the first time. We take pride in helping our Oshkosh neighbors save money and live more comfortably. Contact us today at (715) 227-6295 to schedule your expert consultation.
Menasha, WI; Winneconne, WI; Omro, WI; Fond du Lac, WI; Ripon, WI; Berlin, WI; Fox Crossing, WI; Butte des Morts, WI; Larsen, WI.
Winnebago County, Fond du Lac County, Outagamie County, Waushara County, Green Lake County.
We recently assisted a homeowner near Lake Winnebago whose 1970s-built home suffered from extreme moisture and high heating costs. By implementing a combination of closed-cell spray foam in the rim joists and crawl space encapsulation, we reduced their air infiltration by 45%. The result was a significantly warmer floor during winter and a total elimination of the "musty lake house" smell.
Don't let your hard-earned money leak through the roof. Join the hundreds of satisfied customers in Oshkosh who have trusted Proseal Spray Foam for their insulation needs. Phone: (715) 227-6295 Email: [email protected]
Oshkosh experiences high humidity in the summer and sub-zero temperatures in the winter. Closed-cell spray foam is often recommended here because it acts as both a high-performance insulator and a vapor barrier, preventing condensation issues that lead to mold in our fluctuating climate.
Yes, it is excellent for older homes. Because it expands into gaps, it can insulate irregular wall cavities found in historic Fox River Valley architecture without the need for extensive demolition, while also providing structural reinforcement to aging frames.
Most residential projects in the Oshkosh area can be completed in one to two days. Larger commercial projects or full-house encapsulations may take longer, but we always strive to minimize disruption to your daily routine.
Absolutely. Both open-cell and closed-cell spray foam have excellent sound-dampening properties. They help significantly reduce exterior noise from aircraft, traffic, and neighbors, creating a much quieter indoor environment.
Yes, crawl space encapsulation is the best solution for homes near Lake Winnebago. By sealing the ground with a heavy-duty vapor barrier and insulating the walls with spray foam, we stop moisture from rising into your home and damaging your floor joists.