2026-04-06 6 min read
There's a strip of rubber at the bottom of your garage door that almost nobody thinks about — until water is pooling on their garage floor at midnight during a storm. In Albertson and throughout Duplin County, that rubber seal isn't just a convenience feature. It's a meaningful line of defense against a climate that does not go easy on homes.
Duplin County has been hit hard by major storms more times than most counties in North Carolina. Hurricane Floyd in 1999 left roughly 60 square miles of Duplin County underwater. Hurricane Florence in 2018 brought fatalities from flash flooding right here in the county. Tropical Storm Debby in 2024 sent the Northeast Cape Fear River cresting near dangerous levels, with flooding on secondary roads lasting for days. These aren't once-in-a-generation events anymore — they're a pattern that eastern NC homeowners have learned to plan around.
That context matters when you're deciding whether to bother replacing a cracked bottom seal on your garage door.
The bottom weather seal is a strip of rubber or vinyl attached to the lowest edge of your garage door panel. When the door closes, it compresses against the floor to create a barrier. A functioning seal blocks wind-driven rain from pushing under the door, keeps hot and humid outdoor air from flooding into a conditioned space, and closes off the entry point that insects, rodents, and the occasional snake use to get inside.
In a climate like Albertson's — where humidity regularly climbs above 90% and summer temperatures push into the mid-80s — even a small gap under your door forces your home's HVAC system to work harder. Humid air flowing into a garage attached to your living space raises interior moisture levels, which can damage stored items, promote mold growth, and make your cooling costs climb. Homeowners in this region can lose a meaningful amount annually just from air infiltration through a worn door seal.
For storm preparation, the seal matters even more. Wind-driven rain during a tropical event penetrates even small gaps with significant force and volume. Water that gets under the door pools on the floor, soaks into the drywall at the garage's base, and reaches anything stored at ground level. If your garage connects to your living space, that moisture can migrate further.
This is a quick inspection you can do yourself in about two minutes.
Close your garage door completely, then go inside the garage and turn off the lights. Look at the bottom edge of the door. If you see daylight — even a thin stripe — air and water can come through. In a storm, that gap allows pressurized wind and rain to enter with real force.
Run your hand along the bottom seal with the door closed. A healthy seal should feel pliable and springy. If the rubber is stiff, cracked, brittle, or flaking apart, it's no longer doing its job. UV exposure and heat cycles from Duplin County's summers break down rubber faster than most homeowners expect — a seal that looked fine three years ago may be failing now.
Many garages in Albertson's rural stretches have concrete floors that have settled unevenly over the decades. If the seal makes good contact in the middle but lifts off the floor at one end, you have a gap. This is common in homes built in the 1970s through 1990s, which make up a significant portion of the housing stock across this part of Duplin County. An uneven floor sometimes calls for a threshold seal installed on the floor itself rather than just a door-bottom seal replacement.
For homes in Albertson and the surrounding area — including customers we see coming in from Newport and Morehead City — there are a few considerations that should guide your choice:
- EPDM rubber is generally the best material for humid, hot climates. It stays flexible across a wide temperature range and resists the kind of UV degradation that makes cheaper vinyl seals crack and stiffen within a season or two. - T-end and U-channel profiles are the most common retainer styles in residential doors. Knowing your door's retainer type before ordering saves you a second trip to the hardware store. - For uneven floors, a combination approach works well: a flexible door-bottom seal that compresses into gaps, paired with a floor-mounted threshold seal that compensates for low spots.
If you're not sure what your door has or what it needs, that's a reasonable thing to ask about when you schedule a service visit. Our full list of services includes weatherseal inspection as part of routine maintenance calls.
The bottom seal gets the most attention, but the side stops (the rubber strips along the vertical edges of the door frame) and the header seal across the top also degrade over time. When they do, wind finds a way in. Before storm season, take a walk around the outside perimeter of your closed garage door and press your hand near the edges. Feeling air movement means you have weatherstripping to address.
Albertson Garage Doors can assess all four sides of your door's seal system in a single visit. It's one of those routine maintenance checks that costs very little upfront but can save a lot of cleanup and repair cost after a hard storm rolls through.
Q: How often should I replace my garage door's bottom seal in eastern North Carolina? A: Given the UV exposure, heat, and humidity here, plan to inspect it every year and replace it every two to four years depending on material. Cheaper vinyl seals may need replacement more frequently; EPDM rubber tends to last longer in humid climates. Any time you see cracking, stiffness, or visible daylight under a closed door, replace it regardless of age.
Q: My garage floor is uneven. Will a standard bottom seal even work? A: A standard seal will compress into minor dips, but significant uneven settling can leave persistent gaps. A floor-mounted threshold seal bonded to the concrete is often the better fix for floors with notable irregularities. In older Duplin County homes where the slab has had decades to shift, this is a fairly common situation.
Q: Can a bad weather seal really cause mold problems in my garage? A: Yes, especially in a climate like Albertson's. When humid outdoor air continuously enters a garage — particularly one with limited airflow — moisture levels stay elevated. Over time, that promotes mold growth on wood framing, drywall, stored boxes, and anything else that stays damp. Sealing the door properly is one of the simplest things you can do to reduce that risk. You can find more answers to common questions like this on our FAQ page.