Insulation can yield deep savings on heating and cooling costs when combined with proper air sealing.
Insulation and air sealing work hand in hand to save energy and money, in addition to making your space more comfortable. Air sealing is always the first step: without an effective barrier, air flows right through most insulating materials like fiberglass. Any surface in your home or building that divides the interior from the exterior should be insulated. While no two homes or commercial buildings are the same, more insulation is typically better.
DIY vs. Hiring a Contractor
Insulating an attic or basement yourself can have a significant impact on how comfortable you feel at home or work. For tips on basic DIY insulation, watch our how-to videos. For deeper savings and greatest comfort, hire a trained professional who can address health and safety issues with proper ventilation. Either way, we recommend pairing insulation improvements with other weatherization upgrades to get the most out of your efforts.
- Boost comfort in your home or business, with less heat loss to the outdoors
- A quieter space: better control of room-to-room and street-to-building noise
- Pair insulation with air-sealing and other weatherization upgrades for more impact
* Because spray polyurethane foam insulation is activated and cures on site, it should always be installed by a qualified professional. Some occupants may be sensitive (or could become sensitized) to certain components of spray polyurethane foam insulation, either during application or afterwards. Prior to application, talk to your contractor or medical professional, and research the various insulation products available to determine what is appropriate for you, your home, and your specific project. If you choose to have spray polyurethane foam insulation applied in your home, talk to your contractor about how long you should be out of your home during and after application (usually 24-72 hours). More information about safe application of spray foam is available at https://www.epa.gov/saferchoice/potential-chemical-exposures-spray-polyurethane-foam.
Tips & Tools
- Is your home taking a toll on your health?
- How to fix a wet, damp, or leaky basement
- A homeowner’s buying guide to insulation
- The case for air sealing
- Video: How to insulate your basement
- Video: How to insulate your attic
- Winter tips to stay warm and save energy
- Save on heating with these four steps