1. Tune up your heating system.For about $80 to $100, a technician will inspect your furnace or heat pump to be sure the system is in good repair, and that it can achieve its manufacturer-rated efficiency. The inspection also measures carbon-monoxide leakage.
2. Reverse your ceiling fans. If your ceiling fanhas a reverse switch, use it to run the fan’s blades in a clockwise direction after you turn on your heat. Energy Star says the fan will produce an updraft and push down into the room heated air from the ceiling (remember, hot air rises). This is especially helpful in rooms with high ceilings -- and it might even allow you to turn down your thermostat by a degree or two for greater energy savings.
3. Prevent ice dams.If your home had lots of icicles last winter -- or worse, ice dams, which can cause meltwater to back up and flow into your house -- take steps to prevent potential damage this year. A home-energy auditor or weatherization contractor can identify and fix air leaks and inadequate insulation in your home’s attic that can lead to ice dams.
4. Hit the roof.Or at least scan it closely with binoculars. Look for damaged, loose or missing shingles that may leak during winter’s storms or from melting snow. If need be, hire a handyman to repair a few shingles or a roofer for a larger section. Check and repair breaks in the flashing seals around vent stacks and chimneys, too.
5. Caulk around windows and doors. Richardson says that if the gaps between siding and window or door frames are bigger than the width of a nickel, you need to reapply exterior caulk. (Check the joints in window and door frames, too.) Silicone caulk is best for exterior use because it won’t shrink and it’s impervious to the elements. Add weatherstripping as needed around doors, making sure you cannot see any daylight from inside your home.
6. Clean the gutters. If your gutters are full of detritus, water can back up against the house and damage roofing, siding and wood trim -- plus cause leaks and ice dams. Also look for missing or damaged gutters and fascia boards and repair them.
7. Divert water. Add extensions to downspouts so that water runs at least 3 to 4 feet away from the foundation.
8. Turn off exterior faucets. Undrained water in pipes can freeze, which will cause pipes to burst as the ice expands. Start by disconnecting all garden hoses and draining the water that remains in faucets. If you don’t have frost-proof faucets (homes more than ten to 15 years old typically do not), turn off the shut-off valve inside your home.
9. Drain your lawn-irrigation system. But call in a professional to do the job. Your sprinkler service will charge $75 to $150, depending on the size of the system. Draining sprinkler-system pipes, as with spigots, will help avoid freezing and leaks.
10. Mulch leaves when you mow. Mow your leaves instead of raking them. The trick is to cut the leaves, while dry, into dime-sized pieces that will fall among the grass blades, where they will decompose and nourish your lawn over the winter.
11. Prepare to stow your mower. As the mower sits through the winter, fuel remaining in its engine will decompose, "varnishing" the carburetor and causing difficulty when you try to start the engine in the spring. John Deere offers these preventive steps: If you've added stabilizer to your fuel to keep it fresh longer, then fill the gas tank to the top with more stabilized fuel and run the engine briefly to allow it to circulate. If not, wait until the tank is nearly empty from use and run the engine (outdoors) to use up the remaining fuel. Check your mower's manual for other cold-weather storage steps.
12. Don't prune trees or shrubs until late-winter. You may be tempted to get out the pruning shers after the leaves fall, when you can first see the underlying structure of the plant. But horticulturalists advise waiting to prune until late winter for most plants, when they've been long dormant and just before spring growth begins. To get advice specific to your plants and region, consult master gardeners at local nurseries or horticulturalists with your state university's cooperation extension department. One exception: You may need to hire an arborist to remove deadfall or trim limbs close to your home or power lines that could cause problems in a winter storm.
13. Test your sump pump. Slowly pour several gallons of water into the sump pit to see whether the pump turns on. You should do this every few months, but especially after a long dry season or before a rainy one. For more complete instructions for testing and maintenance, check your owner’s manual. Most sump pumps last about ten years, according to Chubb Personal Insurance.
14. Call a chimney sweep. Before you burn the Yule log, make sure your fireplace (or any heating appliance burning gas, oil, wood or coal), chimney and vents are clean and in good repair. That will prevent chimney fires and prevent carbon monoxide from creeping into your home.
15. Avoid the rush. Don’t wait for the first winter storm to restock cold-weather essentials, such as salt or ice melt.