Winter in Ontario has a way of finding every tiny draft and turning it into a full-time job for your furnace. The good news, you can make your home safer and more energy-efficient with a few DIY upgrades that are low-cost and beginner-friendly.

Here’s a practical winter-prep checklist you can knock out over a weekend.

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1) Stop heat loss where it actually happens, drafts

What to do

• Check around windows and exterior doors for air leaks.
• Add weatherstripping to doors, and caulking around window frames where gaps are visible.
• Use foam outlet gaskets on exterior-wall outlets and switches.
• Add a draft stopper at the bottom of doors.

Why it matters
Air leaks let warm air escape and cold air sneak in, which can increase heating demand. Sealing leaks is one of the simplest ways to improve comfort and reduce wasted energy.

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2) Use temperature setbacks, and let a smart thermostat do the remembering

What to do

• If you already have a programmable thermostat, set it to reduce temperature when you’re asleep or away.
• If you’re considering an upgrade, smart thermostats can learn your preferences and automate schedules, sometimes using features like geofencing. ENERGY STAR

Why it matters
The U.S. Department of Energy notes you can save up to about 10% per year on heating and cooling by setting back your thermostat 7–10°F for 8 hours/day (results vary by home and habits). The Department of Energy’s Energy.gov

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3) HVAC basics, change filters, clear vents, stop overworking the system

What to do

• Check your furnace filter monthly, replace it if it looks dirty.
• Many manufacturers recommend replacement somewhere in the 1–3 month range for common 1-inch filters, depending on usage and the filter type. Carrier+1
• Make sure supply and return vents aren’t blocked by rugs, furniture, or drapes.

Why it matters
A dirty filter restricts airflow and can make your system run less efficiently, and harder than it needs to. Carrier+1

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4) After snowstorms, keep your gas meter and vents clear, safely

What to do

• After heavy snow or freezing rain, gently clear snow and ice from your natural gas meter and vents using a broom or soft brush.
• Do not use sharp tools, shovels, or snow blowers near the meter, and avoid striking it to remove ice. enbridgegas.com

Why it matters
Enbridge Gas specifically warns against using shovels/blowers or hitting the meter and vents, and recommends gentle clearing with a broom. enbridgegas.com

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5) Use winter to plan spring outdoor projects, and remember Ontario One Call

Planning a fence, deck, or landscaping for spring? Winter is a great time to budget, design, and line up contractors.

Important safety note before you dig: In Ontario, you’re expected to request locates before digging. Ontario One Call states it’s free and “the law.” Ontario One Call+1

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Quick printable checklist

• Seal drafts (doors, windows, outlets)
• Set thermostat setbacks, consider smart thermostat scheduling
• Check/replace furnace filter, clear vents
• Clear snow/ice from gas meter and vents with a broom, no sharp tools
• Plan spring projects, request locates before digging (Ontario One Call)

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Want more energy-saving and safety ideas?

Enbridge Gas maintains a hub of home energy-efficiency tips and programs. enbridgegas.com

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If you’re thinking ahead to a spring move, upgrades like draft-sealing, HVAC care, and smart temperature control can also help your home show better and feel more comfortable for buyers.

Team Bush, Craig & Coleen
Call/Text: 905-308-1877

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Safety + info disclaimer

This post is general information, not professional advice. Follow manufacturer instructions and contact a licensed professional for HVAC or gas-related concerns.

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