Here is a quick test you can do tonight. Close your garage door, turn off the lights and look at the bottom edge. If you can see a line of light, the seal may be worn out. A garage door weather seal is one of the simplest parts to replace, which makes it a good example of how we work at Primos Garage Doors: we educate, not upsell. If a new seal is all your door needs, we will tell you that.

What Does a Garage Door Weather Seal Do?
The weather seal runs along the bottom edge of the door and closes the gap between the door and the floor. Weatherstripping along the sides and top of the opening does a similar job around the edges. Together they help keep out drafts, water, dirt and leaves.
What Are the Signs You Need a New Seal?
You can see light under the closed door
Water collects inside the garage after rain or snowmelt
The rubber is cracked, flattened, torn or missing in places
Leaves and dirt blow in under the door
The garage feels colder than it used to

Is a Worn Seal Always the Whole Problem?
Not always, and this is where an honest inspection matters. A gap along the bottom can also come from damage that is not immediately obvious. We regularly work on doors that have been struck by a vehicle, and those jobs can involve damaged panels, tracks, rollers and hardware. A bumped bottom panel can leave a gap that no new seal will fix. When we inspect a door for seal replacement, we look at the door as a system and tell you what we see.
What Does Garage Door Weather Seal Replacement Involve?
A replacement seal needs to match your door and the channel that holds it, and it needs to meet the floor evenly along the full width of the door. Because we work on residential, commercial and specialty doors, we handle a wide range of door types. If the floor is uneven, we will explain your options before we do anything.

Is It Safe to Replace the Seal Yourself?
If you are thinking about it, remember that the bottom edge of the door connects to hardware under significant tension, so never loosen anything attached to the bottom brackets. If the retainer is bent or the bottom panel is damaged, call us. We will show you what we find and explain why a repair is necessary.

How Does a Seal Fit Into Regular Garage Door Maintenance?
A seal check is a natural part of a tune-up, along with a look at the springs, rollers, tracks and hardware. Our maintenance and repair page explains what we look at, and our garage door tune-up guide covers why a yearly checkup is worth scheduling. If water is your main concern, see our post on garage door rain bars.
Why Do Louisville Homeowners Call Primos?
We are a family-owned and operated company established in 1998, and you speak with people who are involved in our day-to-day operations, not a national call center or a franchise. We offer same-day service whenever scheduling allows and 24/7 emergency service, including weekends and holidays. About 85% of our business comes from returning customers. See our Louisville service area page for local details.
Call (720) 437-8951 or request service online. Residential service calls start at $49.99, and we answer emergency calls 24/7, including weekends and holidays.

Frequently Asked Questions
How do I know if my garage door seal needs replacing?
Look for light under the closed door, water inside the garage, or rubber that is cracked, flattened or missing.
Can a bottom seal fix a gap along one side of the door?
Sometimes, but a gap can also come from damaged panels, tracks or hardware. We inspect the whole door and explain what we find.
Is garage door weather seal replacement a big job?
It is one of the simpler garage door repairs. We will tell you honestly if a new seal is all your door needs.
Should I replace the weatherstripping on the sides too?
If the side and top weatherstripping is cracked or missing, replacing it along with the bottom seal makes sense. We will tell you what your door needs.
Is it safe to remove the bottom bracket to replace a seal?
No. The bottom brackets connect to hardware under significant tension. Leave that work to a professional.
Can weather seal replacement be part of a tune-up?
Yes. A seal check fits naturally into a maintenance visit along with a look at springs, rollers, tracks and hardware.
Do you serve Louisville, CO?
Yes. We serve Louisville and communities throughout Colorado, and we offer same-day service whenever scheduling allows.