Window insulator kits provide an airtight seal against wintry winds. These kits are practically invisible, come in a variety of sizes, are easy to install, fit snugly to your window frame and can be easily removed come spring. You can also seal cracks around windows and doors using foam tapes, gaskets and caulk.
Air penetration through indoor and outdoor electrical outlets and switch plates can lead to higher electric bills. Install foam gaskets behind the light switches and electrical outlet covers. Use child safety plugs to keep the cold air from coming in through the sockets.
Add insulation to your home to reduce heat loss and drafts. The Environmental Protection Agency estimates that homeowners can typically save up to 20 percent of heating and cooling costs (or up to 10 percent of total energy costs) by air sealing their homes and adding insulation in attics, floors over crawl spaces and accessible basement rim joists.
Wrap your hot water pipes in insulation preformed for that purpose to reduce heat loss and lessen the workload on your water heater.
Clean vents, air ducts and replace filters to promote airflow and ease the strain on your heating and cooling system.
Clean gutters and, if needed, have professional gutter protection installed to reduce the possibilities of ice damming. If melting ice is unable to drain due to debris buildup, it could seep into the walls and ceilings of your home.
Drain a few gallons from your water heater to remove sediment and help it operate more efficiently.
Upgrade to low-maintenance insulated vinyl siding to efficiently minimize air leakage, especially between wall studs.
Make sure your furnace is well maintained, which means cleaning filters monthly to maximize their efficiency (and save money). At a minimum, change the filter every three months. A dirty filter will slow down airflow and make the system work harder to keep you warm or cool, wasting energy.