Garage Door Winter Problems: Frozen Seals, Weatherstripping & Stiff Tracks

Winter guide

Why winter is hard on garage doors here

In Summit and Wasatch counties, the garage does a lot of work in winter. Cars come in packed with snow, slush melts into a puddle under the door, and at night the temperature drops well below freezing, often below zero in Kamas, Oakley, Woodland and the Heber Valley floor. Many cabin and second-home garages aren't heated at all. Steep driveways in Park City, Hideout and Summit Park send meltwater straight toward the door, and plow berms and roof slides pile snow right against it.

The result is a short list of problems that show up every winter: a door frozen to the slab, a bottom seal torn off, cold air pouring in around the sides, rollers and hinges that groan, and an opener that stops halfway and reverses. Most of these start small and are simple to fix. A few involve parts that are dangerous to touch, and those belong to a garage door company.

1. A door frozen to the floor

When slush melts under the bottom seal and refreezes overnight, the rubber bonds to the concrete. If you hit the opener, the motor pulls against the ice. Best case, the seal tears. Worst case, you strain the opener, bend the bottom panel or throw a cable off its drum.

Don't keep pressing the button. If the door doesn't lift on the first try, stop.
Free it gently. Use a plastic scraper or putty knife along the seal, or warm the line with a hair dryer or heat gun on a low setting. Don't use an open flame, and don't pour hot water, which just refreezes deeper.
Clear the slab. Chip and sweep away the ice ridge along the threshold so the seal has a flat spot to land on. A de-icer that's labeled safe for concrete helps, but avoid rock salt on newer concrete.
Prevent it. Knock snow off the car before you pull in, squeegee the puddle away from the door and wipe a silicone spray on the seal before cold snaps. In a vacant cabin, make sure the slab under the door is dry before you leave.

2. Bottom seals and threshold seals

The rubber seal on the bottom of the door is the part winter destroys first. It gets frozen, torn, flattened by years of the door closing on it, and chewed by mice looking for a warm spot. Once it's gone, snow and cold air blow in under the door, and the garage-to-house door has to do all the work.

Most modern doors hold the seal in an aluminum retainer channel on the bottom panel, so a new seal slides in without removing the door. Seals come in several shapes (T-style, bulb and J-type), and they need to match the retainer. Older wood doors often have a seal nailed or screwed straight to the bottom. If the slab has heaved or settled so there's a gap at one end, a thicker bulb seal or a threshold seal glued to the floor can close it. A badly heaved or broken slab in front of the door is a concrete contractor's job.

3. Weatherstripping around the sides and top

The vinyl or rubber flap that runs up both sides and across the top of the opening, often attached to the door stop trim, seals the gap between the door and the jamb. In the high-altitude sun it cracks and curls, and on many homes it was never installed well in the first place. Replacing it with new stop molding and seal is a quick way to make a cold garage noticeably warmer, which also helps pipes and water heaters that live in some garages. If your garage has plumbing on an outside wall, read our guide to preventing frozen pipes too.

Don't forget the door between the garage and the house. It's an exterior door in all but name, and it often has the worst seal in the home. Our guide to drafty doors and weatherstripping covers sweeps, thresholds and seals for that door.

4. Stiff, noisy tracks, rollers and hinges

Cold thickens old grease, and grit tracked in all winter gets into the moving parts. A door that groans, shudders or stalls in January often just needs a cleaning and the right lubricant:

Clean the tracks, don't grease them. Wipe dirt and old grease out of the tracks with a rag. Grease in the track collects grit and makes rollers skid instead of roll.
Lubricate the moving parts. Use a garage door lubricant or a white lithium or silicone spray on the hinges, the roller bearings (on steel rollers) and the lock bar. Nylon rollers with sealed bearings mostly need the bearings and hinge pivots, not the wheel itself.
Check for loose hardware. Snug up the hinge and track bracket bolts with a wrench. Freeze-thaw and vibration loosen them over time.
Look, but don't adjust, the springs and cables. A light coat of lubricant on the springs is part of normal maintenance in many owner's manuals. Adjusting, unwinding or loosening anything on a spring or cable is not a do-it-yourself job.

If the door still binds after cleaning, a track may be bent or out of alignment, or the door may be out of balance. That's the point to call a garage door company.

5. The opener stops and reverses

A door that goes down, stops and comes back up in cold weather is usually doing what it's designed to do. The safety system thinks the door hit something. Common winter causes:

Blocked or iced photo eyes. The small sensors near the floor on each side get covered by snow, frost or a shovel leaning against them. Clear them and make sure they point at each other.
A stiff door. Thick grease or a frozen seal makes the door harder to move, which can trip the opener's force setting. Fix the cause before touching the settings, and follow the opener's manual if you adjust them.
Dead remote and keypad batteries. Batteries lose power fast in the cold. Swap them in fall, especially on rental keypads guests rely on.

What belongs to a garage door company

This line matters for safety. Garage door springs hold enough tension to lift a door that can weigh a few hundred pounds, and when a spring or cable lets go while someone is working on it, people get badly hurt. Torsion springs (the big spring on the bar above the door) and extension springs (along the side tracks), plus their cables, drums and bottom brackets, should only be handled by a garage door company. The same goes for bent or misaligned tracks, a door that's off its tracks or hanging crooked, damaged panels, door balancing and opener repair or replacement. New outlets or wiring for an opener go to an electrician. We'll tell you straight away if what you're describing is one of these.

What we can help with

We replace bottom seals in existing retainers, add threshold seals, replace side and top weatherstripping and stop molding, clean and lubricate tracks, rollers and hinges, tighten loose hardware, clear and realign photo eyes, swap remote and keypad batteries and fix the garage-to-house door. We also build garage shelving and ski and gear storage so the cars actually fit. For towns where wind is the bigger problem, see our guide to storm doors in windy towns, and for the rest of the fall list, the fall home and cabin checklist. Local pages: door repair in Kamas, door repair in Coalville, snow-season prep in Park City and snow-season prep in Heber City.

When to call a pro

Garage door company: torsion and extension springs, cables, drums and bottom brackets, bent or misaligned tracks, a door off its tracks, door balancing, damaged panels, and opener repair or replacement
Electrician: new outlets or wiring for an opener, and outlets that are dead or tripping
Concrete contractor: a heaved, sunken or broken slab or apron in front of the door
Roofer or gutter help: roof slides and drips that dump snow and ice in front of the door (see our gutter service)
Us: bottom and threshold seals, side and top weatherstripping, cleaning and lubricating tracks, rollers and hinges, tightening loose hardware, photo eye cleanup, keypad and remote batteries, and the garage-to-house door

Where we help

Call or text (435) 321-2591 Message us on Instagram

Garage door winter FAQ

How do I open a garage door that's frozen to the ground?

Stop pressing the opener after the first try. Free the bottom seal with a plastic scraper or a hair dryer or heat gun on low, then clear the ice from the slab. Don't use an open flame or hot water, and don't force the door with the opener.

What should I use to lubricate my garage door?

A garage door lubricant or a white lithium or silicone spray on the hinges, roller bearings and lock bar. Clean the tracks with a rag instead of greasing them, since grease in the track collects grit.

Can I replace the bottom seal on my garage door myself?

Often, yes. On most modern doors the seal slides into an aluminum retainer on the bottom panel. Match the seal shape to the retainer. If the door has to be raised or the retainer is damaged, it's worth getting help.

Why does my garage door reverse when it's cold?

Usually the photo eyes are blocked by snow or frost, or the door is stiff from cold grease or a frozen seal and trips the opener's safety force setting. Clear the sensors and fix the stiffness before adjusting any settings.

Do you repair garage door springs or openers?

No. Springs, cables, drums, bent tracks, door balancing and openers go to a garage door company, because spring tension is dangerous. We handle seals, weatherstripping, lubrication, loose hardware and the garage-to-house door. Call or text (435) 321-2591, or message @kamasvalleyhandyman on Instagram.

We focus on general handyman work and are not a licensed electrical, plumbing or general contracting company. For jobs that need a licensed trade, we'll tell you upfront and point you in the right direction.

Garage door winter problems