2026-03-20 7 min read
If you live in Ross, you already know the drill: long, dry summers followed by a wet season that doesn't mess around. The town sits tucked into the Ross Valley in central Marin County, and while the redwoods and live oaks that line the streets look spectacular in the rain, all that moisture quietly works against one of the most overlooked parts of your home. your garage door.
With annual precipitation around 44 inches per year, Ross gets significantly more rain than most Bay Area communities. That water has to go somewhere, and a lot of it ends up running down your driveway, pooling near your garage threshold, and saturating the air around your door hardware all winter long. Over a few seasons, the cumulative damage adds up fast.
Most homeowners think about garage door problems only when the door stops working. But moisture damage in a climate like Ross's is gradual. it's working on your door right now whether you notice it or not.
Metal springs, hinges, and tracks are the first casualties of a wet Marin winter. Steel parts corrode when water gathers in tracks and hinges, and rollers and cables wear down faster in wet conditions. A small rust spot that looks cosmetic in October can compromise a spring or cable by February. If you're hearing grinding or squeaking when the door moves, that's often the first sign that moisture has gotten into the hardware.
Ross is home to an eclectic mix of architectural styles. Victorians, Tudors, Craftsman bungalows, mid-century ranches, and stately Italianate estates. Many of these older homes were built with solid wood garage doors that have real charm but absorb moisture like a sponge. Wooden garage doors exposed to persistent moisture swell and can warp, disrupting the door's seal and making it stick in the frame or gap at the bottom. If your wood door is fighting you every January and February, moisture absorption is likely the culprit.
For tips on keeping your door sealed against the elements year-round, our complete weatherproofing guide covers what works and what doesn't.
The safety sensors on your garage door sit low to the ground. exactly where rain splash, mud, and debris collect during a storm. Moisture can create condensation on the sensor lenses, blocking the beam and causing the door to reverse unexpectedly or refuse to close at all. Beyond the sensors, humidity can seep into opener wiring and electrical components, causing intermittent failures that are frustrating to diagnose.
You don't need to be mechanically inclined to stay ahead of weather-related damage. These checks take about 20 minutes and can save you a significant repair bill.
1. Inspect and clean safety sensors. Wipe each sensor lens with a dry microfiber cloth after heavy rain. Avoid spraying water or cleaner directly on the sensors. a damp cloth is enough.
2. Lubricate all moving metal parts. Apply a silicone-based or lithium-based lubricant to hinges, rollers, springs, and tracks after the rainy season kicks in. roughly November through March here in Ross. Avoid petroleum-based sprays, which attract dirt and gum up the track.
3. Check your bottom seal. The rubber seal along the bottom of your door is your first line of defense against pooling water. If it's cracked, flattened, or missing sections, water will run straight under the door onto your garage floor. Replacement seals are inexpensive and straightforward to install.
4. Look for rust spots on springs and cables. Hold a flashlight up to the torsion spring above your door and the cables at the sides. Surface rust that wipes off with a rag is manageable. Deep pitting or flaking means those parts need professional attention. If you're unsure what you're looking at, our post on garage door spring warning signs explains exactly what to watch for.
5. Test the auto-reverse function. Place a 2x4 flat on the ground under the door and close it using the opener. The door should reverse immediately when it contacts the board. If it doesn't, that's a safety issue. not just a wet-weather inconvenience.
Homes in San Anselmo, just north of Ross, face virtually identical conditions. same valley, same rainfall, same aging housing stock. If you've talked to neighbors over there about their garage doors sticking or spring issues in winter, you're all experiencing the same Marin County climate reality. The good news is the fixes are the same.
Some doors simply reach the end of their useful life. If your wood door has warped beyond sealing, or your steel door shows deep corrosion across multiple panels, a repair might not make economic sense. Modern insulated steel and composite doors resist heat, moisture, and rust far better than doors installed 20 or 30 years ago on most Ross properties. They also do a better job keeping your garage temperature stable. relevant here given the temperature swings between Ross's dry summers and cool, wet winters.
Garage Door Ross works with homeowners throughout Ross and the surrounding Marin Valley to assess whether a repair or full replacement makes more sense. Our full range of services is available year-round, but we see the biggest spike in calls from November through February. right when the rain takes its toll. If your door is showing any of the signs above, reach out to schedule a look before the next storm system rolls in from the coast.
Why does my garage door keep reversing on rainy days? The most common cause is obstructed or wet safety sensors. Rain can splash mud or debris onto the sensor lenses, or moisture condensation can block the beam. Wipe the lenses clean with a dry cloth and test the door again. If it still reverses, the sensor alignment or wiring may need a professional check.
My wood garage door sticks every winter. should I replace it? Not necessarily. If the door is otherwise in good condition, re-sealing and refinishing the wood, combined with a quality bottom seal, can help significantly. However, if the panels have visibly warped or the door gaps unevenly when closed, moisture has likely done structural damage and replacement is worth considering.
How often should I lubricate my garage door hardware in a wet climate like Ross? At minimum, once a year in late fall before the rainy season. In practice, a second light lubrication in early spring, after the wettest months, helps flush out any residual moisture and keeps metal parts from stiffening. Use a silicone-based spray rather than WD-40. the latter evaporates quickly and doesn't provide lasting protection.