How to Winterize Your Home: A Complete Guide

As autumn fades into winter, it’s time to prepare your home for the colder months ahead. Winterizing isn’t just about staying warm—it’s about saving energy, preventing costly damage, and ensuring safety during freezing temperatures.  A well-winterized home seals out drafts, protects plumbing from freezing, minimizes seasonal hazards, and keeps pests like mice out of your home.

Seal Doors and Windows for Maximum Efficiency

Ensuring your home is properly sealed against chilly drafts can make a big difference in both comfort and energy costs. One of the most effective ways to prevent heat loss is by adding weather stripping to doors and windows, or even installing storm doors and windows for extra insulation.

Cold air can easily sneak in through gaps around doors and windows, forcing your heating system to work harder and driving up energy bills. Here’s how to inspect and improve your home’s seals:

1. Check and Replace Weather Stripping

• Inspect the weather stripping around doors and windows for wear and tear. Summer activities (like frequent in and out) can damage these seals.
• If the stripping is cracked or flattened, replace it to ensure a tight seal.
• Make sure doors close snugly against the weather stripping. If not, adjust the door strike plate to improve the fit.

2. Install or Adjust Door Sweeps

• A door sweep is an easy and affordable way to block drafts at the bottom of exterior doors.
• Check that the sweep presses firmly against the threshold. If it’s worn out, replace it.
• Many thresholds have adjustment screws to raise or lower them to eliminate gaps.

3. Inspect Windows for Air Leaks

• Ensure windows close tightly. Over time, dirt and debris can accumulate in the tracks, preventing a proper seal. Clean them out if needed.
• If windows panes are not the only places that let in drafts, consider applying caulk around the casings/frames
• Windows may rattle in older homes; consider using foam weather stripping for a tighter seal.
• Caulk around the windows where they meet the trim work to seal out drafts.  This will also prevent condensation from forming on your windows overnight.

4. Extra Winterizing Tips for Windows

• Swap summer curtains for thermal-lined drapes to add an extra layer of insulation.
• Keep curtains closed on windows that don’t get direct sunlight to trap warmth inside.
• For added protection, use foam outlet protectors behind electrical plates on exterior walls to prevent cold air from seeping in.

Boost Your Furnace Efficiency & Stay Warm This Winter

1. Change Your Furnace Filter Regularly

A clean furnace filter ensures optimal airflow, helping your system run efficiently. A clogged filter—filled with dust, pollen, and lint—forces your furnace to work harder, increasing energy use and driving up heating costs. For better efficiency and improved indoor air quality, replace your filter every three months (or more often if you have pets or allergies). A fresh filter also reduces odors and keeps your home healthier.

2. Upgrade to a Programmable Thermostat

The U.S. Department of Energy recommends setting your thermostat to 68°F when you’re home and lowering it slightly when you’re away or asleep. A programmable thermostat automates these adjustments, preventing unnecessary heating and reducing energy waste. The result? Consistent comfort and lower utility bills.

3. Don’t Forget Carbon Monoxide Safety

With windows closed for winter, the risk of carbon monoxide (CO) buildup increases. Replace the batteries in your CO detectors and test them monthly to ensure they’re working properly. This simple step can be lifesaving, as Carbon Monoxide is odorless, invisible, and extremely dangerous.

4. Bonus Tip: Consider a Water Heater Blanket

For additional energy savings, insulate your water heater with an approved blanket. This small investment can reduce heat loss and cut down on energy costs.

Weatherizing the Exterior Can Provide a 1st Line of Defence From Cold Winter Storms

1. Secure the Exterior

Small animals and pests often seek shelter in warm homes during winter, potentially causing damage. To keep them out:

• Inspect vent screens to ensure they’re tight and intact—this prevents critters from entering while still allowing proper attic ventilation.
• Seal penetrations around pipes and conduits with caulk or spray foam to block cold drafts and insects.

2. Service Your Fireplace

Whether you have a wood-burning or electric fireplace, maintenance is key:

• Wood-burning fireplaces: Schedule an annual inspection to check for animal nests, creosote buildup, or debris in the chimney. A professional chimney sweep can clean it thoroughly before winter use. Clear ashes from the firebox to ensure safe operation.
• Electric fireplaces: Follow the manufacturer’s maintenance guidelines to keep it running efficiently and safely.

3. Clean and Protect Gutters

Clogged gutters can lead to ice dams and water damage. Stay ahead by:

• Clearing leaves and debris once autumn leaves have fallen to ensure proper drainage of melting snow.
• Considering gutter guards (made of stainless steel or PVC) to minimize buildup. While they require occasional brushing, they reduce the need for frequent cleanings.

4. Inspect and Fortify Your Roof

Winter storms can take a toll on your roof. Proactive measures include:

• Checking for damage—look for missing or curled shingles, damaged flashing, or clogged valleys.
• Clearing debris like leaves and pine needles to prevent moisture retention.
• Trimming overhanging branches to avoid damage from snow and wind.
• Installing snow guards or heat cables in snowy climates to prevent ice dams.
• Ensuring proper attic ventilation and insulation to reduce heat loss and prevent mold growth.

5. Protect Plumbing from Freezing

Frozen pipes can burst, leading to expensive repairs. Prevent this by:

• Insulating pipes in unheated areas (attics, crawlspaces) with tubular or rolled pipe wrap.
• Draining and disconnecting outdoor hoses, and covering non-frost-proof hose bibs with insulated caps.

Prepare Your Outdoor Spaces for Winter

1. Bring Sensitive Plants Indoors

Before the first cold snap arrives, bring potted plants and delicate flowering trees inside. Most tropical or frost-sensitive plants should be moved when temperatures drop below 45°F (7°C) to prevent damage.

2. Protect Outdoor Furniture & Grills

Cold weather, snow, and ice can warp, crack, or rust outdoor furniture and grills. If possible:

• Store them in a garage, shed, or basement.
• For gas grills: Close the propane tank valve, disconnect it, and store the tank outside (never indoors, as it’s a fire hazard).
• No storage space? Use weatherproof covers to shield furniture and grills from winter damage.
• Pro tip: Give your grill a thorough cleaning before covering it to prevent pests from being attracted to your grill and mold growth.

3. Winterize Outdoor Equipment

• Lawn equipment (mowers, trimmers, leaf blowers): Clean off dirt and grass, drain or stabilize fuel, and store in a dry place.
• Snowblower prep: Test and inspect yours before the first snowfall. Check the auger, engine, and fuel system to avoid mid-storm breakdowns.

Stock Up Now—Before Winter Strikes

Don’t wait until the first blizzard hits to prepare. Whether you’re facing heavy snow or just a chilly season, having these essentials on hand will keep you safe and comfortable.

1. Build Your Winter Survival Kit

Power outages and impassable roads can leave you stranded. Be ready with:

• Non-perishable food & water (canned goods, granola bars, dried fruit, crackers)
• Emergency lighting (flashlights + extra batteries)
• Weather radio (battery-powered or hand-crank)
• Snow & ice tools (shovel, ice scraper, ice melt)
• Pet supplies (extra food, medications)
• Generator prep (test it now and ensure fuel is fresh)

2. Prepare Your Car for Winter

Avoid getting stuck in dangerous conditions:

• Emergency car kit: Blankets, jumper cables, first aid supplies, portable charger, ice scraper
• Traction aids: Sand or cat litter for icy tires

3. Gear Up for Outdoor Work

Shoveling snow? Tackling icy walkways? Stay warm and dry with:

• Insulated workwear (waterproof boots, heavy-duty gloves)
• Layered clothing (thermal base layers, windproof jackets)

Pro Tip: Store supplies in one easy-to-access spot—like a bin in the garage or hall closet—so you’re never scrambling when storms arrive.

Brian Benham

I’m the owner of Benham Design Concepts, a mixed media art studio where I design and build custom furniture and other works of art using wood, glass, stone, and various metals.
In this blog, I talk about the art I create, my journey, and the things I learn along the way.