If a sliding closet door drags, sits crooked or leaves an uneven gap, the fix is often a simple roller adjustment. Here’s how to do it safely and what to look for if adjusting doesn’t help.

Step 1: Identify Your Door System

Bottom-rolling doors (most mirror doors) have rollers at the bottom of each panel and an adjustment screw in the bottom corners.
Top-hung doors hang from rollers in the top track, adjusted with a screw or nut at the top of the panel.

Look at the bottom and top corners of each panel for a small hole or screw. That’s your adjustment point.

Step 2: Adjust the Rollers

Clean the tracks. Vacuum and wipe both tracks so dirt isn’t hiding the real problem.
Check the gaps. Close the door and look at the gap between the door edge and the jamb, top to bottom. An uneven gap tells you which side is low.
Raise the low side. Turn the adjustment screw a quarter turn at a time (usually clockwise raises, but check). For heavy mirror doors, have a helper lift slightly to take the weight off.
Test. Slide the door fully open and closed after every adjustment.
Balance both panels. Adjust both doors so they meet evenly and don’t rub each other.

Don’t Adjust Around a Damaged Track

If the track is bent, dented or loose, raising a roller only hides the problem. The door will drag again, and you’ll wear the new position out quickly. Fix or replace the track first. Our guide on replacing damaged closet door tracks explains when that’s needed.

Common Problems and What They Mean

Screw turns but nothing moves: the roller assembly is broken or stripped and needs replacing.
Door still drags after raising: the roller wheel is worn flat or the floor is uneven.
Door jumps the track: the bottom guide is missing or the door is set too high.
Wobbles or rattles: worn wheels or bearings.

When Professional Repair Makes More Sense

Call a professional for heavy mirror doors, rollers that won’t adjust, a bent track or doors that keep coming off. We carry common rollers and guides, and roller replacement typically runs $50–$75 per roller. See our repair service.

Keep the Rollers Working

Vacuum the tracks every few months.
Slide doors gently from the handle area.
Keep shoes and boxes out of the track path.

Frequently Asked Questions

Which way do I turn the screw to raise a closet door?

On most doors, clockwise raises the panel, but it varies by manufacturer. Make a quarter turn and check.

How do I know if the rollers need replacing?

If they’re cracked, flat-spotted, wobbly or the adjustment screw doesn’t change the height, replace them.

Rather have it done right? Call or text (949) 394-6355 or book a repair visit in Orange County.