Attic Insulation in Northern Virginia and Maryland
Poorly insulated attics are one of the top causes of energy waste in homes and buildings. If your attic lacks proper insulation, it can lead to temperature fluctuations, drafty rooms, and high utility costs all year long. Upgrading your attic insulation is one of the most effective ways to improve comfort and reduce your monthly energy bills.
At Northern Virginia Foam, we provide expert insulation installation in attics for both homes and businesses. Whether you live in Annandale, VA or manage a commercial property in Rockville, MD, our team brings the experience and materials to get the job done right. From traditional house insulation to advanced foam insulation, we’ve got you covered.
About Attic Insulation Service
At Northern Virginia Foam, we understand that the attic is one of the most critical — and often overlooked — areas when it comes to insulation performance. Our attic insulation service is designed to transform your attic from a source of energy loss into a layer of protection for your entire home or building. Whether you're dealing with a drafty older house or finishing a new build, we offer tailored solutions that match your structure and your budget.
We begin every attic project with a detailed inspection. Our team checks for common issues like insufficient R-value, air leaks around vents and soffits, unsealed attic hatches, old or compressed fiberglass insulation, and moisture problems. If you're living in a home with outdated house insulation, you may be losing up to 25% of your conditioned air through the attic alone — which directly affects your energy bills and comfort levels.
Once we’ve evaluated your attic’s condition, we walk you through your best options. We install both open cell and closed cell spray foam insulation, depending on your building type and insulation goals. For homeowners prioritizing air sealing and sound reduction, open cell spray foam is a popular choice. For maximum thermal resistance, vapor barrier performance, and added structural strength, we recommend closed cell foam — particularly in attics with HVAC ducts or cathedral ceilings.
In some cases, we also integrate blown-in cellulose or fiberglass to create hybrid systems that offer both performance and cost savings. Everything we install meets or exceeds local building codes and energy standards for Northern Virginia and Maryland, and we always use top-tier products from the most reputable insulation supply brands.
As an experienced spray foam insulation contractor, we handle everything from removing old insulation to prepping surfaces, installing ventilation baffles, and completing clean, code-compliant installations. We’ve helped hundreds of clients across Annandale, Bethesda, Fairfax, and Gaithersburg turn their attics into efficient, sealed spaces that prevent moisture, drafts, and temperature swings.
Whether you're preparing for winter, trying to keep your second floor cooler in the summer, or looking to boost home value before selling, upgrading your attic insulation is a smart investment. And when you work with a local, licensed insulation company near you, you get personalized service and lasting results.