A sliding screen door that will not slide usually has worn spring-loaded rollers or tension screws that have backed out, so the frame drags on the track or jumps off it. A clogged track channel or a bent frame does the same. New rollers, a cleaned track and a re-track fix most screens; a bent frame or shredded mesh usually means a new screen door.
Likely causes
- Spring-loaded rollers worn, cracked or seized at the corners
- Tension screws backed out so the wheels no longer grip the track
- A bent or twisted frame from being pushed by a pet, a child or a chair
- The screen popped off its track and riding beside it
- Track channel clogged with dirt, leaves or pet hair
What you are seeing
The screen door sticks, shudders, or pops off its track every time you push it. The bottom corner drags and leaves a scrape on the sill. It will not stay closed, so the flies come in anyway, or it has been leaning against the wall since spring. The mesh may be clawed open at the bottom where the dog went through it.
Screens are light, so people assume they are simple. They are, but the rollers are small spring-loaded wheels that wear out faster than the ones under the glass door, and when they go the whole frame drags.
What usually causes it
Worn spring rollers. A screen door rides on small spring-loaded rollers at its corners, each with a tension screw. The wheels wear flat, the springs weaken, and the frame settles onto the track.
Tension screws backed out. The screws vibrate loose over years of slamming, the wheels retract, and the door rides on its frame or jumps off.
A bent frame. Screen frames are thin aluminum. A dog hitting it, a chair leg, or someone forcing a stuck door twists it so the corners no longer sit square in the track.
A clogged channel. The screen track is narrow and fills with leaves, dirt and hair, especially on the outside where it is exposed.
Torn mesh does not stop the slide, but it usually arrives with a bent frame.
Need your screen door sliding again this week?
Call or text with your address, how many doors and what the door is doing. You get a firm price before we come out.
What you can check yourself in two minutes
- Clear the channel. Vacuum the screen track on both sides and wipe it. A screen is light enough that debris alone will stop it.
- Find the tension screws. Look at each corner of the screen frame for a small screw near the wheel. Turn each bottom one a quarter turn to extend the wheel and test. If a screw spins without changing anything, the roller is broken.
- Sight the frame. With the screen in its track, look along the top and bottom rails. A bow or twist you can see by eye will not re-track reliably.
- Check the mesh and spline. Torn mesh or spline hanging out of its groove can be re-screened if the frame is straight.
A screen door is light enough for one person to lift out and set against a wall if it is in the way. Never do the same with the glass panel.
What we do about it
For a screen whose frame is straight we fit new spring-loaded rollers at the corners, clean the track, re-track the door and set the tension so it rolls freely and stays on. If the mesh is torn we re-screen the frame with new mesh and spline, pet-resistant mesh if a dog or cat is the reason it tore.
For a bent, twisted or corroded frame we fit a new screen door. Standard patio screen doors come in common sizes; we measure the opening, bring a door that fits, and install it with new rollers and a latch. Heavier extruded frames are available for doors that get hard use or a large dog.
We also check the glass door while we are there, since a screen that jumps its track often shares a sill with a slider that has dropped. See screen door repair and replacement.
When it is not worth repairing
The line on a screen door is simple. Straight frame, repair it: rollers, re-track, new mesh. Bent frame, replace it. A twisted screen frame can sometimes be coaxed back, but it does not stay, and the cost of a new standard screen door is close to the cost of fighting an old one.
Replace rather than repair when:
- The frame is bowed, twisted or kinked at a corner.
- The corners have come apart or the frame is corroded through, common on the coast.
- The frame flexes in your hands; a stiffer frame takes rollers better and stays on the track.
Either way it is a small job. The screen is the one part of a patio door where replacement is often the sensible first answer.
Across San Diego
Screens take a beating where the yard is the living room. In Encinitas, Carlsbad and Oceanside the screen is open most of the year, the salt air corrodes the frame corners, and the dog uses it as a door. Those get pet-resistant mesh and, when the frame is gone, a new door.
Inland, in Scripps Ranch and Rancho Bernardo, the screens that came with 2000s Milgard and JELD-WEN doors have reached the age where the rollers crumble; new rollers and a re-track usually bring them back. For old aluminum doors with a screen that never fit well, a new standard screen usually fits better than the original.
Screen Door Will Not Slide: common questions
Why does my screen door keep coming off the track?
The spring rollers at the corners have worn or the tension screws have backed out, so the wheels no longer press into the track and the frame lifts off with any sideways push. New rollers and a tension adjustment hold it. A bent frame will keep jumping no matter what the rollers do.
Can a sliding screen door be repaired or does it need replacing?
If the frame is straight, it can be repaired: new rollers, a cleaned track, a re-track and new mesh if needed. If the frame is bent, twisted or corroded at the corners, a new standard screen door is usually cheaper than fighting the old one and it will stay on its track.
Do you replace screen door mesh?
Yes. We re-screen straight frames with new mesh and spline, and we fit pet-resistant mesh on doors a dog or cat has gone through. If the frame is bent, we fit a new screen door instead, since new mesh in a twisted frame will not sit flat or slide properly.
How do I adjust the rollers on a sliding screen door?
Each corner has a small tension screw near the wheel. Turn the bottom screws a quarter turn to extend the wheels and lift the frame, test, and repeat until the door rolls freely without jumping. If a screw turns and nothing changes, the roller has broken and needs replacing.
Can you fix the screen and the glass door on the same visit?
Yes, and it is the usual way to do it. A screen that jumps its track often sits on the same sill as a glass panel that has dropped, so we check the rollers on both. We quote the screen and the slider separately so you see each price before we come out.
More answers on the FAQ page. Not sure what your door has? Send us a photo and we will tell you.
Where we see this
We cover all of San Diego County, usually within the week. Some of the places we work:
Related guides
- Signs Your Sliding Door Needs New Rollers (And Two-Minute Checks) – Symptoms of worn sliding door rollers in order of certainty, the two-minute checks you can do safely, and how to tell when the track is the real problem.
- Repair or Replace Your Sliding Glass Door? An Honest Decision Guide – When a $250 to $400 repair brings a 40-year-old aluminum slider back, when the frame, glass or track means replacement, and typical costs for both.
Ready to get the door gliding again?
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