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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.

There should not be any visible gaps between the garage door and frame. If the gap is big enough that you can either see daylight or feel a draft, this indicates a problem. Bring in a garage door professional to help you discover why the gap exists. A pro may also be able to offer suggestions for how to insulate a garage.

It is highly recommended to prime a metal surface, like a garage door, before painting. Primer creates a stable surface for the paint to adhere to, which helps prevent bubbling, chipping, and peeling. This ensures the paint job will last longer. Painting metal without a primer can lead to poor adhesion and allow rust to bleed through the new paint. If the surface already has rust spots, you can cover them with a zinc chromate primer before applying the final coat. While priming adds an extra step and cost, it is a worthwhile investment for a durable, long-lasting finish. For best results, also use a paint specifically designed for metal.

Yes, upgrading a garage can increase home value. Simply having a garage on your property, whether it’s attached or detached, makes your home more valuable. A garage remodel can give you around 80% ROI, though it depends on the type of remodel you do. Converting your garage to a living space can provide significantly higher returns.