Essential Ways to Make Your Home Energy-efficient Before Winter
By Cora Gold
Crisp mornings and earlier sunsets are a sure sign that winter is on its way. Before the cold settles in, it pays to give your home a little attention. A few smart changes now can keep you cozy, trim your bills, and shrink your carbon footprint.
The best part is that you can skip the full renovation. Many of the most effective upgrades take an afternoon and need only a modest budget. Here are the essential ways to make your home more energy-efficient before the first frost arrives.
Get Ahead of Winter Energy Waste
Heating is one of the biggest energy demands in most homes. On average, heating and cooling make up more than half of household energy use each year. When cold air sneaks in and warm air slips out, your system has to work harder to keep up. That means higher bills and more wasted energy.
Getting ahead of the season lets you fix weak spots before they cost you. It also makes your home feel warmer and more comfortable on the coldest nights.
1. Seal Drafts Around Windows and Doors
Small gaps around windows and doors let heat escape all day long. Sealing them is one of the easiest DIY projects you can tackle.
Start by finding the leaks. Wait for a windy afternoon, then slowly run your hand along the edges of your windows, doors, and electrical outlets. Any spot that feels noticeably cooler is probably letting outside air sneak in.
From there, two simple materials do most of the work:
- Caulk fills cracks and gaps around stationary parts, like window frames and trim.
- Weatherstripping seals openings in doors and windows.
Both fixes are inexpensive and quick to install. Better yet, caulking and weatherstripping often repay installation costs within a year or less.
2. Check Your Garage and Attic for Hidden Leaks
Windows and doors get most of the attention, but plenty of heat escapes from less obvious places. Garage doors, attic hatches, and recessed lights are common culprits.
An attached garage deserves a closer look. Worn seals or gaps along the bottom of the door can let cold air creep into nearby rooms. Knowing the spots where homes lose energy helps you target the right fixes.
Then you can make your home energy-efficient before winter without any guesswork. Replace cracked door seals and add weatherstripping around your attic hatch for two quick wins.
3. Add Insulation Where It Counts
Think of insulation as a winter coat for your home. It slows heat flow, so warm air stays inside longer.
The attic is the best place to start, since heat rises and escapes easily through the roof. Basements and crawlspaces are worth checking, too. If you can easily see the floor joists in your attic, you likely have room for more insulation.
Pair new insulation with air sealing for the biggest payoff. Together, the two projects can save up to 10% annually on your energy bills.
4. Program Your Thermostat for Savings
Your thermostat is one of the simplest tools for lowering heating costs. Small adjustments add up over a full season.
Keep it at a comfortable temperature while you’re home and awake. Then turn it down while you sleep or head out for the day. Alternatively, install a smart thermostat and save around $100 annually on heating and cooling.
A programmable or smart thermostat makes the switch for you, so you wake up to a warm house. You might worry that your furnace works overtime to heat back up. In reality, the energy you save while the house is cooler outweighs what it takes to warm it again.
5. Insulate Your Windows for Winter
Even well-sealed windows lose heat through the glass. A few affordable upgrades can help you hold on to that warmth without replacing a single pane.
Plastic storm window film kits are an easy place to start. The clear film traps a layer of insulating air between it and the glass, which slows heat transfer and cuts drafts. Once it’s in place, use a hair dryer to shrink the film for a tight seal.
Window coverings add another layer of protection. Cellular shades trap air in their honeycomb pockets, while thermal curtains work best when they hang close to the glass and reach the sill or floor. Open your coverings on sunny mornings to let free solar heat warm your rooms. Then close them at dusk to hold that warmth in overnight.
6. Turn Down Your Water Heater
Your water heater runs quietly in the background, so it’s easy to overlook. A quick turn of the dial can trim its energy use.
Many water heaters run hotter than they need to. Dialing yours down to 120°F still covers most households’ daily needs.
At that setting, your heater can use up to 10% less energy while also slowing mineral buildup in the tank. A lower temperature reduces the risk of scalding, too, which matters if you have young kids or older adults at home.
Check your dishwasher manual before you adjust anything. Models without a built-in booster heater may need hotter water to clean well.
7. Schedule a Heating System Checkup
Even an efficient furnace or heat pump needs regular care. A preseason checkup helps it run smoothly when you need it most.
A few quick tasks get your system ready for the cold:
- Swap the air filter: A clogged filter restricts airflow and makes your system use more energy.
- Clear vents and radiators: Move furniture and rugs out of the way so warm air circulates freely.
- Book a professional tune-up: If your last service was over a year ago, have a technician inspect everything before the first cold snap.
Keep Your Home Energy-efficient All Winter Long
You can take these steps one at a time. Start with quick wins like sealing drafts and adjusting your thermostat. Then work up to bigger projects like adding insulation or booking a heating tune-up.
Every change makes your home a little more energy-efficient. Together, they keep you warmer, lower your bills, and reduce wasted energy. By the time the first frost arrives, you’ll be ready to settle in and enjoy the season.
About the author: Cora Gold is a sustainability writer who aims to live a healthy, low-waste lifestyle. Read more from Cora in Revivalist magazine, LinkedIn, and Twitter.