What a full sliding door repair covers
A sliding glass door is a simple machine: a heavy glass panel riding on two roller assemblies along a rail, guided at the top and closed by a latch. When any one of these parts wears out, the whole door suffers. A repair visit looks at all of them together.
- Rollers: checked for flat spots, cracked wheels, seized bearings and corrosion. See roller replacement.
- Bottom track: checked for dents, worn rail caps and packed debris. See track repair and alignment.
- Alignment: the panel should sit square in the frame, with even gaps, so it seals and latches.
- Lock and handle: the latch should catch cleanly, and the handle should be tight. See lock and handle repair.
- Weatherstripping: worn pile and seals let in drafts, water and bugs.
Signs your patio door needs repair
You push with your shoulder to get it moving. It rumbles or squeals. It slides open by itself on a slope. Daylight shows at the top corner. The lock only works if you lift the handle. None of these get better on their own. Worn rollers tend to wear the track down too, so an early repair is often the cheaper one.
Repair or replace?
Replacing a whole door costs far more than repairing it, and most doors don’t need it. Replacement only makes sense when the frame itself is badly corroded or bent, or when the glass unit has failed and the door is too old for parts. We’ll show you what we find so you can decide.
What to have ready when you call
If you can, take a photo of the whole door, a close-up of the bottom track, and any brand name or label on the frame edge. Tell us how wide the door is and how many panels move. That helps us bring the right parts the first time.