Check first around doors and windows, and take notes so you remember what you found and where. If you have a leak, you’ll be able to feel the cold air seeping — or even blowing, if it’s a big gap — into your home. For a quick, temporary fix at the base of a door, you can block the air off with towels or blankets. Invest in a draft stopper — available at department stores and online merchants — or, better yet, repair the doorjamb and replace worn out weather stripping.
If you have drafty windows, you’ll have to wait until it warms up to caulk outside around the frame. If you’re concerned about making a mess, clear, silicone caulk might be a better choice, because mistakes won’t be as apparent.
You’ll also want to check outlets and light switches on outside walls, and install gaskets where needed.
If you have an attic, check the hatch or door. You might need to replace the weather stripping there, too.
Finally, head to the basement and feel around any spots where pipes or wires go through the foundation or sill plate. Use spray foam insulation to seal them up. A layer of Fiberglas insulation in front of the sill plates will also help.
If you really want to improve your home’s efficiency, consider scheduling an energy audit with us. Using a blower door test and other specialized equipment, we’ll be able to track down problem areas in your home, and recommend the correct solution.