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How to Prevent Drafts from Windows and Doors This Winter

How to Prevent Drafts from Windows and Doors This Winter

Time to Fix

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DIY Level

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At Brookstone Windows & Doors, we believe your windows and doors are long‑term investments in comfort, efficiency, and durability, and not just aesthetic elements. That’s why we created this short, practical video on how to maintain your windows properly and avoid costly issues down the road.

Your Guide to a Warmer, More Energy-Efficient Home in Ontario

Cold Ontario winters and rising heating costs make draft prevention more important than ever. If you’re noticing chills near your windows or doors—or higher utility bills—it’s time to take action.

In this guide, we’ll walk you through:

✔ What causes drafts in the first place
✔ How to test for air leaks yourself
✔ Which DIY fixes work best for winter
✔ When it’s time to consider upgrading
✔ Why Ontario homeowners need local expertise

Let’s make your home warmer, more efficient, and ready for the cold season.

Why Drafts Happen and What They Cost You

According to energy experts, windows and doors can account for up to 35% of a home’s total heat loss during winter. That means even a few small gaps around your window frame or under your door sweep can make a big difference in how hard your heating system works.

Common causes:

  • Aging windows and doors with deteriorating seals
  • Poor installation or shifting frames over time
  • Missing or cracked caulking
  • Worn or compressed weather-stripping
  • Improper insulation around rough openings

(Source:https://natural-resources.canada.ca/)

How to Check for Drafts in Your Home

Not sure if you have a draft problem? Try these simple tests:

  • Candle or Incense Test: Hold a lit candle near edges. If the flame flickers, air is entering.
  • Hand Test: Feel around window/door edges for cold air.
  • Paper Test: Close a door on a piece of paper. If it slides out easily, the seal isn’t tight.

DIY Fixes to Block Drafts Fast

1. Weather-Stripping

Perfect for sealing gaps around doors and windows. Choose from:

  • Foam tape
  • V-strips
  • Compression strips
  • Door sweeps

2. Caulking and Spray Foam

Seal any visible gaps or cracks around window and door frames with exterior-grade caulk or low-expansion spray foam.

3. Clean Window Tracks

Dust and debris in tracks prevent proper sealing. Vacuum and lubricate tracks with silicone spray.

Tools you’ll need: foam tape, caulk, utility knife, microfiber cloths, silicone spray.

When It’s Time to Replace Your Windows or Doors

DIY can only go so far. Consider upgrading if:

  • Your windows/doors are over 20 years old (and not Brookstone)
  • You notice persistent fog or condensation
  • Seals are broken or frames are warped

Modern ENERGY STAR® certified products drastically improve insulation, reduce heating costs, and add comfort.

(Source: https://natural-resources.canada.ca/)

Draft-Proofing Tips Just for Ontario Homes

Ontario homes deal with:

  • Harsh winter temperatures
  • High heating costs
  • Humidity fluctuations

Therefore, it’s important to use:

Winter Window & Door Maintenance Checklist

✔ Inspect caulking and weather-stripping
✔ Add foam tape or silicone seals
✔ Install or repair door sweeps
✔ Clean and lubricate tracks
✔ Test for air leaks before winter deep-freeze

(Source: https://natural-resources.canada.ca/)

Final Thoughts: Don’t Let the Cold Sneak In

Stopping drafts means saving money and improving comfort. Whether it’s a quick seal fix or upgrading old frames, acting now prevents bigger issues later.

DIY fixes like weather-stripping, caulking, or foam sealing are great for minor air leaks and can make a noticeable difference. But if you’ve tried these solutions a few times, and drafts, fogging, or cold spots keep returning, it’s likely time for a window or door replacement.

Brookstone offers free in-home consultations for Ontario homeowners to detect and fix drafts before winter hits.

Areas we serve: Windsor, London, Brantford, Cambridge, Hamilton, Barrie, Newmarket & Area, Oshawa, Mississauga and more

👉  Book your free consultation today and take control of your home comfort this winter.

Frequently Asked Questions

Can I fix all drafts with DIY solutions?

Many small drafts can be sealed with weather-stripping or caulk. However, persistent drafts or fogging windows usually indicate deeper issues that may require replacement.

How do I know if my door needs weather-stripping or a sweep?

If you feel cold air near the bottom or sides of your door, or light is visible around the edges, it’s time to install or replace these seals.

Will new windows really reduce my heating bills?

 Yes. ENERGY STAR® certified windows can cut energy costs by up to 15% by reducing heat loss and improving insulation (Source: Natural Resources Canada).

Are government rebates still available?

Some programs, like the Home Efficiency Rebate Plus and The Greener Home Grant, have closed to new applicants for 2025. However, Brookstone often runs seasonal promotions and local offers that you can still take advantage of. Our team can walk you through what’s currently available and help you maximize your savings.

Should I replace all my windows at once?

 Not necessarily. You can phase out upgrades based on need and budget. However, replacing multiple units at once often leads to lower per-window installation costs.