How to Fix Drafty Windows and Doors

What We'll Cover:

Those small gaps and cracks might seem insignificant, but over time, they force your HVAC system to work overtime, leading to higher utility bills and unnecessary energy waste. If left unchecked, drafts can even affect the longevity of your windows and doors, causing more wear and tear. The good news? Fixing these drafts can be simple and cost-effective, making your home more efficient and comfortable in the long run. Let's dive into some practical solutions!

1. Understanding what causes drafty windows and doors
2. Tips for identifying drafts in your home
3. Quick fixes for immediate relief
4. Long-term solutions for sustainable comfort
5. Knowing when to call in the professionals
6. Preventing future drafts through regular maintenance

What causes drafty windows and doors?

Over time, the seals and materials around your windows and doors can degrade. This wear and tear can lead to gaps that let cold air in and warm air escape. Other potential reasons for drafts include:

• Poor Installation: If your windows and doors weren’t installed correctly, they might not fit snugly in their frames, which creates gaps that allow air to flow in and out.
• Environmental Factors: Changes in temperature and humidity cause materials to expand and contract, which may result in the development of cracks and gaps over time.
• Lack of Insulation: Insufficient insulation around windows and doors can let cold air seep into your home.

How to locate a draft in your home

Before you can fix those drafty windows and doors, you need to pinpoint where the air leaks are coming from. Begin by carefully inspecting your windows and back and front doors, checking for any gaps or cracks between the frames and walls. If you spot daylight peeking through, that's a sure indication of an issue.

On a windy day, run your hand along the edges to feel for any cold air seeping in. Another method is to hold a candle or incense stick near the frames—if the flame flickers or the smoke moves erratically, that might mean your window is drafty. Hearing whistling or howling noises when the wind blows? That’s another telltale sign of gaps needing attention.

Quick fixes for drafty windows and doors

If you’ve identified drafty areas in your home, you’ll want to take action quickly, so that you don’t lose a lot of warm air through heat transfer. Here’s how to fix drafty windows for the short term in a way that doesn’t break the bank:

Weatherstripping

One of the simplest and most effective fixes is applying weatherstripping to your drafty windows and doors. This material comes in various types, such as adhesive-backed foam, V-strip, or felt. To apply, measure and cut the strips to fit around your windows and doors, sealing the gaps and stopping drafts in their tracks.

Thermal curtains

These insulated curtains block out light as well as helping keep the cold air at bay, significantly improving your home’s temperature regulation. Make sure to hang them as close to the window as possible for maximum effect.

Draft stoppers

Draft stoppers can be placed at the bottom of your doors to block chilly air from sneaking in. You can find fabric or foam options in stores, or you can create your own by rolling up a towel or sewing a fabric tube filled with rice. Simply position them at the base of your doors for immediate relief.

Long-term solutions

While a quick fix can get you by for a while, you may be wondering, well how do I stop drafty windows permanently? Getting rid of window drafts for good means cutting to the root of the problem with long-term solutions that keep your home comfortable year round.

Caulking windows

Caulk helps seal gaps around window frames and prevents air leaks. Choose a high-quality, paintable caulk for the best results. To get started:

• Identify areas where the frame meets the wall or where there are visible cracks.
• Clean the surfaces to remove old caulk or debris, then apply a bead of caulk to fill the gaps.
• Smooth it out with a caulk tool or your finger for a neat finish. 

Adding insulation

Insulation is key to keeping your home energy-efficient. If your windows are older or your home has insufficient insulation, consider upgrading. There are various options, such as rigid foam boards or fiberglass insulation, that can be added around window frames and in walls. Spray foam insulation is particularly effective for sealing larger gaps.

Air sealing

Air sealing, which involves sealing all possible air leaks throughout your home, complements insulation efforts. You can use expanding foam for larger gaps or specialized sealants for smaller cracks around windows, doors, and other openings.

When to get help

If you consistently feel cold air seeping into your home or notice a significant drop in temperature, it might be time to seek professional assistance. Additionally, if your windows or doors appear saggy or warped, or if they are difficult to open and close, these issues may indicate underlying structural problems.

In these cases, a pro can assess the situation and recommend the best course of action. If you’re unsure about the source of the drafts or how to address them effectively, consider getting a comprehensive energy audit done. This evaluation can identify problem areas and provide tailored solutions that will improve your home’s overall energy efficiency.

Preventing future window drafts

Now that you know how to repair drafty windows and doors, the key is making sure that these problems don’t come back to plague your home again in the future. Here are some key preventative measures to consider:

• Make it a habit to check your windows and doors for signs of wear and tear at least once a year. Look for cracks, gaps, or any material degradation that could lead to drafts.
• Before the winter chill sets in, take the time to reapply weatherstripping and caulk as needed. It’s also a good idea to clean out any debris around window sills and door thresholds to ensure a tight seal.
• If your windows and doors are outdated, consider investing in energy-efficient models when it’s time for replacements. Look for options with a good energy star rating, as they can significantly reduce drafts and lower your energy bills.

Seal the deal with American Home Shield^®

Keeping your home in tip-top shape requires ongoing attention—not just for window drafts, but for your heating systems and other critical components. With an American Home Shield® home warranty plan, you’ll have peace of mind knowing that your home’s major systems and appliances, including heating systems, are covered. Our coverage helps protect you from the unexpected costs of repairs and replacements, making sure that your home stays comfortable all year long.

For more home improvement tips, including our must-have products for DIY repairs, check out the Home Matters blog.