2026-03-12 7 min read
Living out here in Lewis County, you already know that dry days are something you appreciate when they show up. Mossyrock averages over 40 inches of rain annually, with nearly 179 rainy days spread across the year. and from November through March, it barely lets up. That kind of persistent moisture does a number on a lot of things around your property, and your garage door is no exception. Most homeowners don't notice the damage until it becomes expensive. This post is about catching it before that happens.
It's not just the rain itself. it's the constant dampness that lingers. When moisture gets into metal components, it accelerates rust and corrosion on tracks, hinges, and hardware. In a climate like ours, metal parts don't get a chance to dry out between storms, which means oxidation happens faster than it would in a drier region.
Torsion springs are the most expensive casualty of a wet Pacific Northwest winter. These large coiled springs above your door are under enormous tension, and when rust eats into the metal, the spring loses structural integrity. A spring that looks "a little orange" in October can be deeply pitted and near failure by February. If you can feel rough, crater-like textures when you run your finger along the coil, that spring needs professional attention. don't wait.
Tracks and rollers are the next concern. Moisture helps grime collect in the tracks, and that increases resistance every time the door moves. If your door has started feeling sluggish or making new noises during the rainy months, that's the system telling you something.
The bottom weatherseal. that rubber strip running along the bottom edge of your door. takes the most direct abuse. It sits right where the door meets the concrete, which means it absorbs every rain splash, puddle, and cold snap all winter long. Over time, it cracks, hardens, and pulls away from the retainer channel.
Here's a quick test: close your garage door and crouch down to look for daylight underneath. Even a small gap means water, cold air, and critters can get in. You can also try the dollar-bill test. close the door on a bill and try to slide it out. If it pulls free easily, the seal isn't making proper contact anymore.
For homes out here in the Mossyrock area and down toward Randle and Morton, where garages are often attached to well-used shops and outbuildings, a failed bottom seal also means mud, debris, and bugs finding their way inside. It's a cheap fix. a replacement seal runs $20,$40 at most hardware stores. but the damage from ignoring it is not cheap.
Don't stop at the bottom. The rubber or vinyl stripping along the sides and top of your door frame goes through the same wet-dry cycle every year. UV exposure in the summer dries it out, fall rains start the cracking process, and by mid-winter it may have pulled away entirely from sections of the frame.
Walk around the outside of your closed door and press the stripping with your finger. If it feels brittle or crumbles slightly, or if you can see it has separated from the frame at any point, it's time to replace it. For our climate specifically, look for EPDM rubber or vinyl weatherstripping rated for continuous moisture exposure. it holds up far better than standard foam options.
One of the simplest things you can do to extend the life of your garage door hardware through a Mossyrock winter is proper lubrication. Apply a silicone-based lubricant to rollers, hinges, the torsion spring, and the tracks every six months. once in the fall before the heavy rains, and once in the spring after.
Avoid WD-40 for this job. It's fine for loosening rust, but as a lubricant it attracts dirt, gums up over time, and washes off quickly in wet conditions. A proper garage door lubricant or white lithium grease is what you want here.
You can learn more about timing your seasonal maintenance in our essential summer prep guide, which covers what to address on the other end of the weather calendar.
Some things on a garage door are genuinely DIY-friendly. replacing a bottom seal, lubricating hardware, cleaning tracks. But springs are not in that category. Torsion springs are under extreme tension (often 200+ pounds of force), and a failed or improperly handled spring can cause serious injury. If you see visible gaps in the coils, deep rust pitting, or your door suddenly feels much heavier to lift manually, contact a technician rather than attempting a fix yourself.
The same goes for bent tracks or a door that won't close flush at the bottom. A small alignment problem left through a wet winter tends to become a warped panel or a damaged opener by spring.
Garage Door Mossyrock handles these kinds of repairs across Lewis County, and our full list of services covers everything from spring replacement to complete weatherseal upgrades.
The best time to do a full inspection is early fall. before the November rains arrive in force. But if you missed that window, early March is your next opportunity. Catching a problem now means you can get it fixed before the season drags on and schedules get tight.
Here's a quick checklist to run through on a dry morning:
- Inspect torsion springs for rust, gaps, or pitting - Test the bottom seal with the dollar-bill method - Check side and top weatherstripping for cracks or separation - Lubricate all moving parts with silicone-based spray - Manually lift the door halfway. it should hold in place without drifting - Clean the photo-eye sensors. damp conditions cause lens fogging and false reversals
If your door fails the balance test (it drifts up or drops when released at mid-height), that's a spring tension issue that needs professional adjustment. Check our FAQ page for more guidance on what's a DIY task versus a call-a-tech situation.
Q: How often should I replace my garage door's bottom weatherseal in Mossyrock's climate? A: Most rubber bottom seals last 3,5 years under normal conditions, but in a high-rainfall area like Lewis County, plan on inspecting it every fall and replacing it every 2,3 years, or sooner if it shows cracking or fails the dollar-bill test.
Q: Can I apply lubricant over rusty springs, or do they need to be replaced? A: Surface rust. light orange or brown discoloration. can be treated with a wire brush and then protected with lubricant. Deep pitting, where you can feel craters in the coil, means the spring has lost structural integrity and needs professional replacement. Don't try to work with a pitted spring.
Q: My garage door reverses on its own during wet weather. What's causing that? A: This is usually one of two things: the photo-eye sensors have moisture or dirt on the lenses, causing false obstruction readings; or the bottom seal has stiffened and is creating resistance that the opener interprets as an obstruction. Clean the sensor lenses first, and if that doesn't solve it, have the seal and door balance checked.