How can I fix these huge gaps under my garage door without spending a fortune?

A two-inch gap is way too much for those standard rubber threshold strips. Most of the stuff you glue down only provides about half an inch of height, so it won't even touch the door on the sides where your dip is. Instead of focusing on the floor, look at the **bottom seal** on the door itself. You can buy oversized 'U-shape' weatherstripping, sometimes sold as 6 or 7-inch wide rubber. When you install it into the metal retainer, it creates a much larger loop that can compress in the middle where your hump is and still reach the floor on the ends. If the oversized seal still doesn't quite make it, a common trick is to stuff a length of foam backer rod or a piece of foam pipe insulation inside the rubber bulb on those outer edges. It gives the seal some 'bones' so it doesn't just collapse. And you shold also grab some foam corner wedges. These are specifically designed to plug that triangular gap at the bottom corners where the door, the track, and the wall all meet. It makes a massive difference for that wind whistling thru.

For the freezer situation, you realy shouldn't be using a standard power strip. Those things are notorious for tripping when a freezer's compressor kicks on becasue of the initial amp draw. If the strip trips, you lose your food and you won't even know it happened til it's too late. Your best bet is a **whole-house surge suppressor** installed directly into your electrical panel. It protects every outlet in the house, including the garage, without the risk of a local breaker tripping and killing your appliances.

If you absolutely want somethig at the outlet, get a high-quality single-outlet surge protector from a brand like Tripp Lite. Avoid anything with a long cord or multiple outlets. You want something rated for high-draw appliances that stays live unless there's an actual catastrophic event. But if your power is generaly stable, the freezer is honestly much safer plugged directly into the wall to avoid any accidental trips.

I had that exact same dip in my floor and the GaraDry 2 Inch High Garage Door Threshold Seal was the only thing that actualy reached the door. It’s way beefier than the thin rubber strips and fills those side gaps perfectly. Just use thier specific heavy-duty adhesive so it stays put when you drive over it. For the freezer, grab an APC SurgeArrest P1P. It’s a single-outlet unit that handles the high amp draw of a compressor much better than a standard strip. It has clear indicator lights so you can see it's still grounded and protecting every time you walk into the garage.

Look into the Snirt Stopper if the GaraDry seems too tall to drive over daily. I’ve used thier 3-inch heavy-duty foam-filled seal on uneven slabs before, and it’s a beast for stopping those 2-inch drafts. Unlike the U-shaped rubber, it mounts to the face of the door, so you can offset it to hit the floor perfectly even with that center hump.

For that freezer, grab a Reliance Controls THP208 Power Outage Alarm. It’s a cheap $20 fix that screams the second the power drops. Combine that with a Tripp Lite ISOBAR1—those have a 600-joule rating and a rugged metal housing that won't melt down if your compressor spikes.

Have you ruled out the door travel limits or cable tension? If one side is pulling harder than the other, it might be making that center hump look worse than it acutally is. It’s a lot cheaper to adjust the springs than to glue down a massive threshold you'll trip over. Also, on the freezer—are you positive it was a surge? Most garage plugs are on a GFCI, and those are notorious for tripping when a compressor kicks on, expecially in the cold. You might be buying a surge protector to fix a nuisance tripping issue that'll just happen again.

Back when I started, we didn't have these fancy $100 rubber thresholds. If the hump was that bad, we’d just take a grinder to the concrete and knock that center high spot down an inch. Messy as heck, but once you level it out, a standard seal works fine.

As for that freezer, I’ve seen more food lost to a tripped GFCI than a surge. If you're dead set on a protector, skip the cheap plastic ones. I still swear by those old industrial metal-cased surge taps. They don't melt when the compressor works hard in the summer heat. Just make sure you aren't plugging a chest freezer into a daisy-chained circuit or you're asking for trouble.

Quick update — I checked the travel limits like suggested, but the door is definatly hitting the hump. That Snirt Stopper looks interesting since it mounts to the face of the door. Does it acutally stay flexible when it gets below zero? I’m worried about it freezing to the concrete and ripping off. Also, still looking for that surge protector recommendation if anyone has one they swear by!