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You can prevent your garage from freezing by applying techniques like sprinkling salt onto the garage floor, installing a garage heater, shoveling snow outside the door, and more. Additional methods of preventing your garage from freezing over is to seal all potential air gaps, replace weatherstripping, and adding insulation to the surrounding walls to keep the heat from escaping.

Garage doors that are not insulated can be a major source of heat loss. That’s why it’s essential to winterize your garage door with insulation and weather stripping to prevent heat loss and keep it warm more easily. Consult a local garage door installer if you need help determining the cause of your garage losing heat.

Garage door sensors work by using infrared beams to detect objects in the door’s path. One sensor sends a beam while the other receives it. When the beam is broken—say, by your car or anything else—the sensors signal the door to stop or reverse. It’s all about safety and making sure nothing gets trapped under the door. If they’re misaligned, the beam doesn’t connect, and the garage door might stay open or close regardless of obstructions.

It’s possible to use a torch to melt ice on your garage door, but we don’t recommend it. It’s very easy to bring the flame too close to the door, which can melt the weather stripping or even the garage door itself. You’ll melt ice quickly with a torch, but the damage you’re likely to cause can end up costing you a few hundred dollars to fix, which isn’t worth it. Instead, we recommend pouring hot water over the frozen area or using a less intense heat source, like a hair dryer or space heater.