Sliding door dropped and scraping the frame: causes and repair cost in Myrtle Beach

A sliding glass door that has visibly dropped and is scraping the frame or the sill has collapsed roller housings, and every day it stays that way it is grinding a groove in the aluminum. Roller replacement with a proper height reset in Myrtle Beach is $175 to $350 per door, and a stainless track cap over the rail it has already chewed is another $150 to $300. The $95 to $175 service call is applied. This is the one symptom on this site where waiting reliably costs money.

Check this first

1. Look at the gap along the top. Close the door and look at the head. If the gap between the top of the panel and the head channel is wider than it used to be, or wider at one end than the other, the panel has sunk and possibly tilted.
2. Find the scrape. Slide the door and listen. A scrape from the bottom means the stile is riding on the sill. A scrape at the interlock means the panel has tilted into the fixed lite. Both are the same underlying failure.
3. Try the adjustment screws once. Two small screws at the bottom corners of the panel, usually behind plugs. A quarter turn clockwise on each raises the panel on most doors. If the door lifts and the lock lines up, you have bought time, though the rollers are still on their way out.
4. Check the rail. Run a light along the bottom track where the door has been dragging. A bright, flattened stripe or a shallow groove means the rail has already been worn and needs capping when the rollers go in.
5. Note whether the lock still catches. A dropped panel almost always misaligns the latch and the keeper, which is the other half of this call.

What is usually wrong

Every range is on the pricing page.

Why panels drop here

Panel weight and salt do it together. A Grand Strand slider weighs 100 to 300 pounds, and impact-rated laminated panels on newer oceanfront replacements weigh more than the annealed insulated units they replaced. All of that sits on two small wheels. Chloride from ocean air rusts the plain steel bearings in builder-grade rollers until they will not turn; the wheel skids, grinds a flat, and the load transfers into the housing, which is often a stamped steel or nylon part never designed to carry the panel directly. It bends, and the door sinks.

The rental cycle accelerates it. A balcony door on a weekly rental in Garden City or a tower on Ocean Boulevard gets cycled dozens of times a day all summer, often by someone hauling on a stiff panel. Doors in Loris and Longs sit on the same kind of rollers and take many more years to reach the same place.

When replacement beats repair

Almost never for a dropped panel by itself. Rollers and a cap put a sunken 1980s aluminum door back to a one-finger glide for a few hundred dollars, and that is the right call in the large majority of cases. Look at full replacement only if the stile has corroded where the roller housing mounts, so there is nothing solid to fasten the new housing to, or if the sill and frame have gone with it. On an oceanfront opening, replacement means an impact-rated unit at $3,000 to $6,000, and the Horry County permit and impact glass page explains why.

What to expect on the call

Say how far it has dropped, whether the lock still catches, whether you can see a worn stripe on the rail, and which floor the door is on. Photograph the whole door, the bottom rail, and the gap at the head. We lift the panel out, show you the old rollers, fits housings rated for the panel weight, caps the rail if it is worn, and sets the height so the interlock closes and the lock catches without forcing. Same-visit work across Myrtle Beach, North Myrtle Beach, and Pawleys Island. Run the repair cost estimator first if you want the number tonight.