Hurricane season on the Grand Strand: the sliding door checklist before a storm

September 8, 2026

A sliding glass door is the largest opening in most Grand Strand homes and condos, and in a storm it is the one that decides whether wind and water stay outside. It is also the part of the house people check last. This is the checklist to run now, in the middle of the season, on every slider you own: what to test, what to clear, what to photograph, and which of the cheap repairs are actually worth doing before a storm rather than after.

The Atlantic hurricane season runs from June 1 to November 30. The National Hurricane Center puts the statistical peak at September 10, with most activity between mid-August and mid-October, and a 1991 to 2020 average season producing 14 named storms, 7 hurricanes, and 3 major hurricanes. In other words, if you are reading this in September, you are at the peak, not ahead of it.

Why doors, specifically

The Grand Strand’s exposure is not theoretical. On September 30, 2022, Hurricane Ian came ashore near Georgetown, South Carolina with sustained winds of 80 mph. The tidal gauge at Springmaid Pier in Myrtle Beach recorded 10.77 feet above mean lower low water, almost a foot higher than during Hurricane Isaias in 2020, and by the following day roughly 63,000 customers were still without power, with Horry and Georgetown counties among the hardest hit.

Storms of that kind do two things to a sliding door. They push horizontal rain against an opening that was designed to shed vertical rain, and they load the panel and frame with wind pressure that a worn lock, a dropped panel, or a gapped interlock cannot resist. Many post-storm door problems start as a small, cheap, known problem before the storm.

The checklist

1. Test the lock, and mean it

Close the door and throw the lock without pushing the panel sideways. If you have to shove the panel toward the jamb to get the latch into the keeper, the lock is not holding the door shut against wind, it is holding a door you are holding shut. That is the single most important item on this list. A door that only locks with a shove is usually a dropped panel on worn rollers, not a lock fault, and the fix is rollers with a height reset at $175 to $350, or lock and keeper work at $100 to $300.

2. Fit or check a secondary lock

A foot bolt, pin lock, or track bar at the bottom of the panel is $60 to $150 and it does two useful things in a storm: it stops the panel rattling and working itself loose under pressure cycling, and it holds the door in the track if the primary latch is overwhelmed. If your door has one, check that it actually engages and is not seized. If it does not, this is the cheapest storm-season improvement on the list.

3. Clear the sill drains

This is the one that prevents water in the living room. A sliding door sill collects water that gets past the panel and drains it back outside through small weep holes at the front edge, sometimes behind little plastic flaps. On this coast those fill with blown sand. Vacuum the track end to end, work a pipe cleaner through each weep hole, then pour a cup of water into the outer groove and watch it run out the front. If it pools, it is blocked, and in a tropical downpour a blocked sill fills and spills inward over the interior lip. The full walkthrough is on the water leaking at the sill page.

4. Look at the weatherstrip and interlock

Run your hand around the closed door on a windy day, or have someone shine a light around the perimeter at night. Flattened pile, a gapped interlock where the two panels overlap, and hardened vinyl bulb seals are all paths for wind-driven rain, and they are the same paths that whistle in an ordinary blow. Weatherstrip, pile, and interlock work is $100 to $250 and it is a same-visit repair.

5. Make sure the door opens

This gets forgotten because people are thinking about keeping weather out. A balcony or patio slider that is stuck shut is a blocked exit, and in a house where that door is the second way out of a bedroom it is a life-safety problem in any emergency, not just a storm. Test every slider in the building, including the ones nobody uses.

6. Deal with the screens

Screen doors are sails. In sustained wind a full sheet of mesh loads four light aluminum extrusions and four plastic corners until something gives, and the frame becomes debris. If a storm is forecast, take screen doors off their tracks and lay them flat indoors or in a garage. If a screen is already torn or off its track, rescreening at $75 to $150 is cheap, but before a storm the right move is simply to remove it.

7. Clear the balcony and the track path

Anything on a balcony or patio that can move is potential impact debris aimed at the largest pane of glass in the unit: furniture, planters, grills, umbrella bases, the hose reel. Also check that shutters, security bars, and track-mounted hardware are not going to foul the door if you need to open it in a hurry.

8. Photograph everything, with a date

Do this before the storm, not after. Photograph each door whole, the bottom track, the sill, the lock and keeper, and any existing damage. The reason is straightforward: insurance treats sudden wind damage differently from slow salt and sand wear, and after a storm the argument is about which one you had. A dated set of before photographs settles it. Do the same immediately after, before anything is touched or cleaned up.

What is worth fixing before a storm, and what can wait

Before the storm, in priority order: a door that will not lock properly, a missing or seized secondary lock, blocked sill drains, and a door that will not open. All four are under $350 each from the published price list, and all four affect what happens during the storm rather than after it.

Can wait: fogged glass, a torn screen you are removing anyway, cosmetic track wear, and full replacement. Sealed units are made to order and are not a storm-week job. Replacement in particular is a poor storm-season decision: it needs a permit, and in the wind-borne debris region the new unit must carry impact-tested glazing or approved protection under the 2021 South Carolina codes, which takes time and puts the job at $3,000 to $6,000. If you want an impact-rated door, decide it in February, not on a five-day forecast cone. The permit and impact glass page explains the rule and the impact glass or shutters guide covers the choice between glazing and covers.

Know your evacuation zone before you worry about the door

The South Carolina Emergency Management Division publishes hurricane evacuation zones drawn from the South Carolina Hurricane Evacuation Study released by FEMA and the US Army Corps of Engineers in 2012, and state and local authorities announce evacuations by those predesignated zones. SCEMD’s Know Your Zone map and its mobile app will tell you which zone an address falls in, and Horry County and Georgetown County emergency management publish their own guidance. A door is worth protecting. Nobody should be securing one while an evacuation order is running.

After the storm

Do not force a door that has jammed. Frames rack under wind loading, and a panel that is being pinched by a bowed head track will either not move or will move suddenly, which is how glass breaks and people get hurt. Photograph it, leave it, and get it looked at. Most post-storm doors on the Grand Strand turn out to need track work at $150 to $650 rather than a new door, and the ones that genuinely need replacement are the ones where the opening itself moved.

Property managers with a building to walk should read the per-door budgeting post as well, because a post-storm survey is the natural moment to put a stack of doors on one visit. And if you want the number for any of the repairs above before you call anyone, the repair cost estimator builds it from the same published table.