A refrigerator gasket is anything but glamorous.
It’s actually the rubber seal running around the edge of your refrigerator door, and most people never think about it until something goes wrong. By then? It's probably been costing them money for months.
The good news: a worn gasket is one of the cheapest and easiest refrigerator repairs you can make. No special tools, no technical background required. Just a new part and about half an hour.
Here's how to know when it's time.
Sign 1: You can feel cold air escaping around the door
Run your hand slowly along the edges of your closed refrigerator door. Feel a faint chill? That's conditioned air leaking out. Your compressor is working overtime to compensate, and your energy bill is quietly going up.
Sign 2: There's visible cracking, tearing or warping on the seal
Give the gasket a close look. If the rubber is cracked, stiff, flattened or pulling away from the door frame in spots, it's past done. A gasket in that shape can't create the airtight seal your fridge needs.
Sign 3: The dollar bill test fails
Close your refrigerator door on a dollar bill so half of it sticks out. Pull. If the bill slides out without any resistance, the gasket isn't sealing properly. Do it in a few spots around the door. If it slips anywhere, that's your answer.
Sign 4: You're finding condensation or frost where it shouldn't be
Moisture along the inside edges of the door or frost building up near the seal tells you warm air is getting in. That warm air meets the cold interior and condenses, giving you moisture and causing your fridge to work harder to recover the lost temperature.
Sign 5: Your food isn't staying as cold as it should
If your milk is going bad ahead of schedule or your produce is wilting faster than usual, an air leak is one of the first things to check. Before you call a technician or start shopping for a new fridge, look for a simple culprit: the gasket.

How to Replace It (Yes, You Can Do This!)
Find your refrigerator's model number. It's almost always on a label inside the fridge, along the door frame or on the back panel.
You need it to order the right gasket — OEM is worth it here, since a gasket that doesn't fit your specific door won't seal correctly no matter how carefully you install it.
Once your part arrives from PartsToday — order by 2 p.m. EST and it ships the same day — the installation takes three steps:
1. Pull the old gasket off. It's held in by a lip that tucks under the inner door panel. Start at a corner and work your way around, pulling it free.
2. Warm the new gasket before you install it. Soak it in warm water for a few minutes or let it sit in a warm room. This makes the rubber pliable and much easier to seat properly.
3. Press the new gasket into place, starting at the top corners and working your way around the door. Tuck the lip behind the panel all the way around. Close the door and run your hand along the seal to check for gaps.
4. Run the dollar bill test again to confirm the seal.
5. Check the interior temperature 20 minutes later, once your fridge has had time to stabilize.
A new gasket costs a fraction of what a service call runs — and about a tenth of what a new refrigerator costs.
The repair is worth doing … and now you know exactly how!