How to Keep Cold Air Out from Windows

Are there some rooms in your house that are always chilly in the winter, even with the heat on? Or do you feel cold air coming through the window frame? Those are both clues that your windows may be leaking. If your windows are fairly old and have seen better days (especially if they are the basic windows that came with the house), you want to pay attention to this blog. Windows leaking cold air during the winter make your home less comfortable AND cost you extra money on your heating bills every month!

At Choice Home Remodeling, we’re a total home improvement company that specializes in replacing old windows with smart, stylish, and leak-free upgrades! With more than two decades of experience diagnosing and replacing leaking windows, we’ve seen everything and can give you our expert take. Learn more about how to keep cold air out from windows leaking cold air – and talk to our team today!

 

The Main Causes of Window Air Leaks

Windows in sunroom that may be leaking cold air

So, why are you feeling cold air coming through your windows? It’s often due to poor seals, gaps between the window frame, or damage to the window itself. While temporary solutions like weatherstripping may help, the most effective long-term fix is to upgrade to modern, energy-efficient windows designed to prevent drafts.

These are the four most common reasons for window air leaks:

Broken Seal – There’s no question that this is one of the most common culprits behind your windows leaking cold air. As some window frames sit in the sunlight, they expand and contract. Over time, this expansion and contraction causes the seal between the window frame and the glass to break. This breakage causes air to be able to infiltrate right through to the inside of your home.

Exterior Damage – In some cases, the outside window frame can become damaged. Whether it’s a small issue like the weatherstripping getting knocked loose or cracks in the frame, this kind of damage can let air in. If the problem is fairly minor (like weatherstripping), this is one of the causes of window air leaks that can be repaired, instead of fully replacing your windows.

Window air leaks for exterior of home

Compare wood vs. vinyl windows.

Gaps During Installation – While generally older windows are more likely to be drafty, these leaks can affect newer windows, too. For example, if the construction team that built the house rushed the job, they may have left small gaps between the window frame and the wall. While they may be difficult to see with the naked eye, you’ll be able to feel the drafty air.

Low-Quality Glass Window – Although this generally is not an issue with any recently installed windows, some very old windows may just be made with energy-inefficient glass that doesn’t provide insulation and lets the air right through. So, if this is the window you unfortunately have, there could be nothing else wrong with it, yet you’ll still experience the tell-tale draft of a window air leak.

See what the BEST windows for renovation have in common!

 

Best Way to Stop Drafty Windows: Replace Them

Window in kitchen that is leaking cold air

In the vast majority of cases, the best way to stop drafty windows is to replace them with an attractive and energy-efficient upgrade. While minor exterior damage – like missing weatherstrip – can be repaired fairly simply, all of the other causes of window air leaks require replacement. Not only is repairing sub-par windows not cost-effective, but you also miss out on all of the advantages that new windows deliver, including:

  • Reduced Energy Bills in Every Season
  • Attractive Interior & Exterior Styles
  • Boosted Property Value
  • Guaranteed Air Leak-Free Protection
  • Great Warranties (Including Lifetime Warranties)

Bottom line: the best way to stop drafty windows is to upgrade – and there are a whole ton of other advantages. If you want to find out just how affordable new windows can be, reach out to our team for a FREE quote!

Contact us right here to get started!

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Replaced front door with double doors and rear patio doors with double doors. Choice Home Remodeling was our contractor to do the work. Had 2 door specialists working for 3 days. I call them specialists due to their years of experience and the pride they took in making sure everything was right. Plan on having more work done by them and highly recommend their services.
Response from the owner:Thanks so much, John! We really enjoyed working with you on door replacements in Lititz, PA. The 8' front door creates a beautiful entryway. Our team takes a lot of pride in their work, so it means a lot to hear that their experience and attention to detail stood out. We appreciate the recommendation and look forward to helping with your next home improvement project!
Tim and the team at Choice did an excellent job on our new front door. The Choice showroom is very nice and Tim led us through the buying process very professionally and with no pressure. The door arrived ahead of schedule and Jeff did an outstanding job in installation. No dust or mess and the door looks awesome! Highly recommended!!
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We love Choice Home Remodeling - over the years Choice has replaced our front door, multiple windows, renovated our Kitchen and replaced our garage doors! Pricing is fair and the work done by Choice is Excellent. Highly Recommend Choice for home remodeling. Will be replacing more windows and sliding door in 2026, so the first call will be to Pete Steiner at Choice!
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