Do you replace threshold seals?

We focus on bottom seals and vinyl trim — those are what 99% of Portland homeowners need. If you have a specific threshold situation, call us and we'll let you know if it's something we handle.

My garage floor is uneven — will a new seal fix the gap?

Only if the gap is about an inch or less. A bottom seal can compress to fill roughly 1 to 1.5 inches of space. If your concrete has settled or slopes more than that, a new seal won't close the gap — you'd need the concrete addressed first. We'll check during the visit and tell you honestly whether a seal replacement will solve it or not.

Garage Door Seal Replacement in Portland

Water pooling inside your garage? Daylight visible under the door? That’s a worn seal — and in Portland, it’s not going to get better on its own.

Between the rain, the humidity, and the temperature swings, garage door seals take a beating in the Pacific Northwest. The rubber dries out, cracks, and stops doing its job. Once water starts getting in, it’s only a matter of time before you’re dealing with mold, rust, or damaged belongings.

A seal replacement is one of the quickest, most affordable fixes we do — 30 minutes to an hour, and your garage is dry again.

Call a Pro (503) 704-2654

Most Common Seals We Replace

Most seal replacement calls come down to one of two things — or both.

Bottom Seal + Retainer

The bottom seal is the rubber strip that compresses against the ground when the door closes. It’s the first line of defense against water, drafts, and pests.

Here’s what most companies won’t tell you: on a door that’s 10+ years old, we don’t just replace the rubber — we replace the entire bottom retainer (the aluminum channel that holds the rubber). Why? Because after a decade of use, the old retainer is bent, corroded, or compressed to the point where you can’t slide new rubber through it. Forcing new rubber into an old retainer means it won’t seat properly, and you’ll be replacing it again in a year.

New rubber seal + new retainer = a seal that actually works and lasts.

Cost: $245 – $289, depending on door size. Parts and labor included.

Vinyl Trim (Side and Top Weatherstripping)

The vinyl trim runs along both sides and across the top of the door frame. It seals the gaps between the door panels and the frame when the door is closed.

When we replace vinyl trim, we replace all three pieces — both sides and the top — so the color matches. The old trim fades over time, and replacing just one section leaves you with mismatched weatherstripping that looks patched together.

Cost: $225 – $275, depending on door size. Parts and labor included.

One thing to know: a bottom seal can only fill a gap of about 1″ to 1.5″. If your garage floor is uneven and drops more than that, the seal isn’t going to fix the problem — it’s a concrete problem, not a seal problem. We’ll tell you that upfront rather than sell you a seal replacement that won’t work. If the gap is minor, we can help. If it’s a significant floor slope, you may need a concrete contractor to level the threshold area first.

Signs Your Seals Need Replacing

You don’t need a technician to spot most of these:

Water on your garage floor after it rains. This is the most common call we get. If water is getting past the bottom seal, the rubber is cracked, flattened, or missing chunks.

Daylight is visible under the closed door. Walk into your garage during the day with the door closed. If you can see light along the bottom, that seal isn’t doing its job.

Drafts or cold air coming in, especially noticeable in winter. A gap in the vinyl trim or bottom seal lets cold air straight into the garage — and if your garage shares a wall with your house, it can affect your heating bill.

Leaves, dirt, or pests getting in. If you’re sweeping out your garage regularly or finding mouse droppings, check the seals first. Mice can squeeze through a gap the width of a pencil.

Cracked, brittle, or flattened rubber. Bend the bottom seal with your hand. If it cracks, doesn’t spring back, or has chunks missing — it’s done.

How Long Seals Last in Portland

In our climate, expect a quality seal to last about 5 years before it needs replacing. The combination of rain, summer UV exposure, and winter freezing temperatures breaks down rubber faster than in drier climates.

If your door is 5+ years old and you’ve never replaced the seals, they’re probably due for replacement. We check seals during every maintenance visit — it’s one of the items on our inspection checklist.

FAQs About Garage Door Seal Service

How much does garage door seal replacement cost?

Bottom seal with new retainer runs $245 to $289, depending on door size. Vinyl trim (both sides and top) runs $225 to $275. Both include parts and labor.

How long does seal replacement take?

How do I know if I need the bottom seal, the vinyl trim, or both?

Can I replace the rubber seal myself?

You can try, but there are two problems. First, on older doors, the retainer is usually the issue — not just the rubber. If the retainer is bent or corroded, the new rubber won’t seat properly, no matter how you install it. That’s why we replace both together.

Second, on many doors, the retainer is installed under the bottom bracket, and that bracket is connected to the spring system — meaning it’s under tension. Removing it without knowing how to safely handle that tension can cause serious injury. Our techs deal with this every day and know how to work around it safely.

How often should garage door seals be replaced?

What to Expect

Most seal replacements take 30 minutes to an hour. We carry the most common seal sizes on the truck, so it’s usually a one-visit job.

We inspect the current seals and retainer to see what needs replacing
We give you a clear price before starting
We remove the old seals and retainer, clean the channel or frame
We install the new seal and retainer (bottom) or new vinyl trim (sides and top)
We test the door closed to make sure there are no gaps

If we spot other issues during the visit — worn rollers, a fraying cable, spring tension that’s off — we’ll let you know. No pressure, just information so you can plan ahead.

Portland Metro Service Area

We replace garage door seals across Portland, SE Portland, Beaverton, Lake Oswego, Milwaukie, Happy Valley, West Linn, Oregon City, Gresham, Hillsboro, Wilsonville, and Vancouver, WA.

D&L Garage Doors & Locksmith, Your Neighborhood Garage Door Pros since 201,0 Oregon CCB #194109 | Washington License #DLGARGD820CF

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(503) 704-2654