Reliable Attic Insulation, Serving Madison, Dane County & Surrounding Area
At Duerst Insulation, we know that a properly insulated home is essential for year-round comfort, energy efficiency, and long-term savings. As a family-owned business, we’re committed to delivering high-quality products and expert service our customers can depend on.
In Attics, Insulation Is Only Half the Solution
While many homeowners focus on the amount of insulation in their attic, air leakage is an equally critical—but often overlooked—factor. Without proper sealing, even the thickest insulation can fall short, allowing conditioned air to escape and outdoor air to seep in.
In fact, unsealed gaps and cracks can leak more air than an open window, driving up energy costs and reducing comfort. That’s why our approach combines comprehensive air sealing with high-quality insulation, creating a tightly sealed, energy-efficient barrier that keeps your home consistently comfortable and cost-effective.
Insulation Types
Blown-In Cellulose
Cellulose insulation delivers outstanding thermal performance while also helping to seal air leaks for improved energy efficiency. Its combination of effectiveness and affordability makes it a top choice for homeowners seeking maximum value from their insulation investment.
Closed-Cell Spray Foam
In areas with limited depth—such as box sills, crawl spaces, and sloped ceilings—closed-cell spray foam is the preferred choice. Its exceptional insulation value and air-sealing capabilities deliver superior performance, making it a smart and lasting investment for challenging spaces.
Fiberglass
As the most cost-effective insulation option, fiberglass remains a popular choice for budget-conscious projects. However, it generally offers lower performance compared to cellulose or spray foam, particularly in terms of air sealing and long-term energy efficiency.
Vermiculite
Though no longer used today, vermiculite insulation is commonly found in older homes—and it may be contaminated with asbestos. If your home contains vermiculite, it’s safest to assume a risk is present. We highly recommend professional removal and replacement with a modern, safe, and energy-efficient insulation solution.
What We Recommend—And Why
Cellulose insulation is our top choice for attic insulation in most cases. While it was once priced higher than fiberglass, the costs are now comparable. With its superior thermal performance, homeowners often see a return on investment through lower energy bills. That's why we continue to recommend cellulose for long-term savings and comfort.
But the benefits don’t stop there. Cellulose offers more than just insulation—it also delivers effective sound control and acts as a natural pest deterrent, making your home more comfortable, quieter, and easier to maintain. It’s an all-around smarter choice for those looking to maximize both efficiency and value.
We install attic insulation to the modern R-50 standard—recognized for top-tier energy efficiency. Our cellulose insulation doesn’t just meet this benchmark; it consistently outperforms other R-50 materials, delivering better comfort and savings year-round.
In short, cellulose insulation offers the best balance of performance, durability, and overall value—which is why we recommend it for the majority of homes we service.
Get in Touch with Duerst Insulation Today
Whether you're looking to upgrade your attic insulation, boost energy efficiency, or reduce your utility bills, our experienced team is ready to help you achieve lasting results.
You may also qualify for valuable rebates through Focus on Energy and IRA-HOMES energy-saving programs, making your investment even more affordable.
