How do you keep water out of a sliding glass door track?

Author: Faustino Deckow  |  Last update: Tuesday, December 2, 2025

Using the right weatherstripping and sealing around sliding glass doors is key to keeping water out. You can use vinyl or fuzzy weatherstripping at the bottom of the door to block water. A tight seal between the door and frame is vital to keep the home dry and safe from water damage.

Is it normal to have water in a sliding door track?

It is normal, especially in the case of heavy rain. Since the outer side of the track is exposed to the elements, water from a storm is naturally going to make its way in there.

How to prevent water leakage from a sliding door?

Fortunately, water infiltration during heavy rain, tropical storms, or hurricanes can be avoided with a properly installed and weather-resistant sliding glass door. An effective way to close gaps in your sliding glass door frame is to use weatherstripping tape.

Why is there water on the inside track of my sliding window?

That's pretty normal on some low end doors & slider windows and is mainly a cosmetic problem. Water can get past the weatherstrip and needs to drain off the ends of the bottom track to get to the weep holes. The water should never get so deep it overflows into the house.

Where are the drain holes on a sliding glass door?

On either end of your sliding door's track will be a series of small holes bored into the frame. These are known as Weep Holes and are designed to help drain water from the track and stop it from building up.

How does the drain on a sliding glass door work?

How do you keep water out of a sliding door track?

To help prevent the blockage of the drainage holes (and therefore help to reduce the risk of water ingress) the tracks should be maintained and cleaned on a weekly basis, to ensure the optimum performance of the sliding doors and to ensure that debris is not building up and slowing the systems designed drainage.

What are the two holes at the bottom of a sliding glass door for?

Every standard sliding glass door has adjustable rollers that help it slide back and forth within the track. On the bottom portion of your sliding glass door, you should see a small hole on each side of the door. These holes hide the adjustment screw for the coordinating rollers.

How to seal a sliding glass door from water?

Install Weather Stripping

Once your sliding glass door is free of debris, weather stripping can be utilized to create an effective seal. Weatherstripping is one of the most cost-effective ways to eliminate energy leaks and completely weatherproof a sliding patio door.

Why is there water on the inside of my sliding glass door?

Check the rubber seals on your sliding glass door to make sure they aren't deteriorated, cracked, or damaged. Poor weather stripping seals are a big reason why moisture can form on sliding glass doors. If this is the case for your door, then you'll need to replace the seals with new ones.

Where are window weep holes located?

Typically located on the bottom part of windows, they are commonplace in sliding windows, double-hung windows, and other windows with sashes that can collect water. Window weep holes drain the window's frame of moisture and water that may accumulate within the structure.

How do I stop my slide outs from leaking?

Seals around slide-outs deteriorate over time, allowing moisture through. Each time the slide-outs are moved extended, ensure the wiper seals are fully out, making contact with the slide-out walls and roof. Before closing the slides, ensure all debris is cleared off the slide roof.

Are sliding glass doors watertight?

Many sliding doors come with built-in protection against misdirected rain. Even if your door is properly installed, rain still naturally blows into the track. Weep holes are actually small slats that allow water to drain from the base of the track without being big enough to let in bugs.

Should you caulk the bottom of a sliding glass door?

Using caulk and silicone sealants can greatly enhance your door's sealing effectiveness. Here are some benefits: Lower Energy Bills: Sealing gaps helps maintain temperature, reducing heating and cooling costs. Comfort: A well-sealed door keeps your home warmer in winter and cooler in summer.

What are the weep holes in sliding glass doors?

Weep holes are like built-in drains for your doors. As helpful as these slats are, they can easily become clogged with dirt, stones, dust, leaves, and other debris. Look at your door's model number to find the weep holes. Once you have found them, remove the debris and check the caulking for any damage.

How to fix a leaky sliding glass door?

The openings often become clogged with dirt and debris. Use a crevice tool to clear them, or spray compressed air from a can into the opening. You may also need to drill additional slots for better drainage. If weep holes are located in the interior section of the track, the track was installed incorrectly.

How to keep water out of a sliding door track?

Importance of Clear Drainage Holes

Sliding doors have weep or drainage holes at the track bottom to let water out. These holes can get blocked by dirt, leaves, or other things, stopping water from draining. Check and clean these holes often to keep the water out as it should.

Why is there water on the inside track of my window?

Does water accumulate in your window track? It is normal to see a bit of water in your window track during heavy rain or when washing your windows and doors. However, it may also be an indication that it's time to inspect and clean your window's track and weeping holes.

How do you get moisture out of a double pane sliding door?

Physical cleaning: Effective for newer or less severe fogging. Drill a small hole between the glass panes and use a pipe cleaner or wire coat hanger covered in pantyhose to scrub off the fog; Alcohol flushing: If the fog is excessive, use isopropyl alcohol to flush out the moisture.

Why is water getting inside my sliding door?

There are many reasons as to why water may leak inside from sliding doors. One reason may be due to weep holes. These small holes are meant to drain water out of the door tracks, but, when clogged by dirt or debris they may cause water ingress. Another possibility is that the door frame could be improperly sealed.

How do you make a sliding glass door airtight?

Plastic Window Film

For a quick and cost-effective solution, you can buy a complete window film kit. Simply cut the plastic sheet to size, attach it to the glass pane using the double-sided tape, and then use a hairdryer to seal it.

Will sand bags block water from a sliding glass door?

Sandbags will not seal out water. Sandbags deteriorate when exposed for several months to continued wetting and drying. If bags are placed too early, they may not be effective when needed. Sandbags are basically for low-flow protection (up to two feet).

What are the 2 screws for on the bottom of the sliding door?

Locate the screws: At the bottom of the patio door frame, you should find two screws on both the front and back of the sliding door. The top screw holds the wheels in place, while the bottom screw controls the door's height.

Why is there condensation on the inside of my sliding glass door?

Condensation Inside Your Patio Doors

Condensation can form inside your home if you have poor ventilation, or if patio doors or windows are located near to, or in, a room that frequently gets steamy – like the bathroom or kitchen. In this case, the hot air hits the cooler windows and condensation starts to form.

What do you put on the bottom of a sliding glass door?

Add caulk to the bottom edge of the opening. Firmly press the sill pan into the caulk. Put silicone caulk around the edges of your opening where your siding and house wrap meet. You'll also want to put a small amount of caulk at the bottom of the opening.

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