How to Fix Drafty Windows the Right Way

Drafty windows can be a major problem, especially during the colder months when heat loss can lead to skyrocketing energy bills and uncomfortable living spaces. Addressing drafty windows improves comfort and enhances your home’s energy efficiency. Here’s how you can fix drafty windows and keep your home cozy all year round.

Identifying the Source Before You Fix Drafty Windows

Before you can fix a drafty window, you need to identify where the draft is coming from. This can be done with a simple test. On a windy day, hold a lit candle or incense stick near the window frame. If the flame or smoke moves or flickers, you’ve found the source of the draft. Pay close attention to the edges of the window frame, the meeting points of the sashes, and any cracks or gaps in the caulking.

Re-Caulking the Window

One of the most common causes of drafty windows is deteriorating or missing caulking. Over time, caulk can crack, shrink, or peel away, leaving gaps that allow cold air to seep in. To fix this, you’ll need to remove the old caulk and apply a new bead of high-quality exterior-grade caulk.

Start by scraping away the old caulk with a putty knife or a caulk removal tool. Clean the area thoroughly to ensure that the new caulk adheres well. Once the area is clean and dry, apply the new caulk in a continuous bead along the gaps. Smooth the caulk with a caulking tool or your finger, then allow it to dry completely.

Weatherstripping for a Tight Seal

Weatherstripping effectively seals gaps around windows that open and close. Various weatherstripping materials are available, including adhesive-backed foam tape, V-strips, and rubber gaskets. Choose a weatherstripping material that is compatible with your window type.

To install weatherstripping, clean the surface where it will be applied to ensure it sticks properly. Measure the length of the window sash and cut the weatherstripping to fit. Apply the weatherstripping along the edges of the window where the sash meets the frame. This creates a seal that prevents air from leaking in or out.

Installing Window Film

Window film is a simple and cost-effective solution for drafty windows. This transparent plastic film is applied to the interior of your windows, creating an insulating barrier that reduces heat loss. Window film kits are readily available at most home improvement stores and are easy to install.

To apply window film, first clean the window thoroughly. Next, cut the film to size, leaving a little extra around the edges. Attach the film to the window using the provided adhesive tape, then use a hair dryer to shrink the film, removing any wrinkles and ensuring a tight seal. This method is particularly effective for single-pane windows or windows with old glass.

Fix Drafty Windows by Adding Thermal Curtains

Another effective way to combat drafty windows is using thermal curtains or insulated drapes. These curtains are designed with extra layers of fabric to provide added insulation, reducing the amount of cold air that enters your home.

Hang thermal curtains over your windows, ensuring they extend below the window sill and cover the sides of the window frame. When drawn closed, they create a barrier that helps keep warm and cold air out. For maximum effectiveness, combine thermal curtains with other draft-proofing methods like caulking and weatherstripping.

Replacing Old or Damaged Windows

If your windows are old, damaged, or beyond repair, consider replacing them. Modern energy-efficient windows are designed to minimize heat loss and eliminate drafts. Double or triple-pane windows with low-E coatings are particularly effective in insulating your home.

While replacing windows is a more significant investment, it can substantially save energy bills and improve your home’s comfort and value. If you’re unsure whether replacement is necessary, consult a professional to assess the condition of your windows.

Regular Maintenance to Fix Drafty Windows for Good

Once you’ve fixed your drafty windows, maintain them regularly to prevent future drafts. Inspect the caulking and weatherstripping annually, especially before the winter season. Address any issues immediately to keep your windows in top condition.

Keeping your windows clean and well-maintained will help prevent drafts and extend their life. Regular maintenance is the key to ensuring that your windows continue to provide adequate insulation and keep your home comfortable year-round.

There are many methods to insulate and seal windows. Fixing drafty windows is essential for maintaining a comfortable and energy-efficient home. Regular maintenance will ensure your efforts last, providing long-term benefits for your comfort and finances.

FAQs

Is there a way to temporarily fix drafty windows if I can’t address the problem immediately?

Yes, a temporary fix for drafty windows is to use draft stoppers or draft snakes, which are fabric tubes filled with insulating material. Place them along the bottom of the window to block drafts. You can also use rolled-up towels or blankets in a pinch.

What are the signs that I need to replace my windows rather than just repair them?

Signs that your windows may need replacement include persistent drafts despite repair efforts, visible damage to the window frame or glass, condensation between double-pane glass, difficulty opening or closing the window, and noticeable outside noise infiltration.

What are low-E windows, and how do they help with draft issues?

Low-E (low-emissivity) windows have a special coating that reflects infrared light, keeping heat inside during the winter and outside during the summer. While they don’t directly stop drafts, they improve the overall insulation of your windows, making your home more energy-efficient and comfortable.

How does window film compare to double glazing for reducing drafts?

Window film is a cost-effective and temporary solution that can reduce drafts and improve insulation, but it’s not as effective as double glazing. Double glazing involves installing two panes of glass with an air or gas-filled space between them, providing superior insulation and energy efficiency.

Attic to Foundation offers professional inspection services to homebuyers and sellers in the greater Atlanta area. Contact us to request an appointment.