The short answer
What Tape Can and Cannot Do
Tape can keep loose glass pieces from falling out and help block wind and light rain for a short time. It also reduces the risk of cuts if someone brushes against the crack. However, tape does not seal out water. If rain gets in, it can soak the window frame, wall, or floor, leading to water damage that spreads behind the glass.
A cracked window also loses its insulating value. You may notice drafts or higher energy bills. More importantly, the crack can grow from temperature changes, wind pressure, or a small impact. Tape does nothing to stop that growth, so the window can fail completely without warning.
- Tape holds shards in place temporarily
- Does not keep water out
- Does not stop the crack from spreading
- Reduces drafts only slightly
- No structural support
- Not a permanent solution
When Taping Makes Sense
Taping is useful as a short-term measure while you arrange for a proper repair. If the crack is small and the glass is still intact, tape can keep it stable for a day or two. It also helps protect your family from sharp edges until the window can be replaced.
Use a strong tape, such as duct tape or clear packing tape, and cover the entire crack. Press the tape down firmly so it adheres well. Check the tape regularly, especially after wind or rain, and replace it if it loosens. But remember, this is only a stopgap, not a fix.
Risks of Leaving a Taped Window
A taped window still poses safety risks. The glass can shatter from a strong gust or a bump, sending shards into the room. If the crack is near the frame, the window may fall out entirely. Also, if water seeps in through the crack, it can damage the wood or drywall around the window, leading to mold or rot.
Water damage from a leaky window can be hidden for a while, but it eventually shows up as stains, peeling paint, or a musty smell. In areas where weather can change quickly, a small crack can become a bigger problem. Don't rely on tape for more than a few days.
Steps to Take Right Now
First, clean the area around the crack and remove any loose glass. Use gloves and eye protection. Then apply tape as a temporary measure. Next, contact a window professional to assess the damage and provide a replacement. If you notice water stains or dampness near the window, also consider a water damage inspection to check for hidden moisture.
While you wait for the replacement, keep an eye on the crack. If it grows or the tape fails, cover the window with a board or plastic sheeting to keep out water and debris. This can prevent further damage to your home's interior.
- Wear gloves and safety glasses
- Remove loose glass carefully
- Tape the crack firmly
- Contact a window pro for replacement
- Check for water stains nearby
- Cover with board if needed
When to Call for Professional Help
A cracked window is a job for a window replacement pro, not a do-it-yourself repair. They can measure the opening, order the right glass, and install it safely. Attempting a permanent fix with tape or a DIY kit can lead to improper sealing and future leaks.
If you suspect water has already entered your walls or floors, a water damage inspection can identify the extent. The pros can also dry out affected areas to prevent mold. Policies vary, and your insurer decides what is covered. Check your policy to see if window replacement or water damage cleanup is included.
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Call Now (801) 383-0232Frequently asked questions
How long can I leave tape on a cracked window?
Tape is a temporary fix, not a long-term solution. You can use it for a few days while you arrange for a replacement. Leaving it for weeks increases the risk of the crack spreading or water getting in. Replace the window as soon as possible.
Will tape keep rain from leaking through the crack?
No, tape is not waterproof. Rain can still seep through the crack and damage your window frame or walls. If you expect heavy rain, cover the window with plastic sheeting or a board to keep water out until the window is replaced.
Can I repair a cracked window myself with a kit?
Some small cracks can be filled with resin kits, but they are not reliable for all types of glass or cracks. A professional window installer can assess the damage and recommend the right option. A proper replacement ensures a tight seal and prevents future water damage.