Your garage door bottom seal keeps your garage dust free, pest free, water free and draft free. Over time this seal wears out and you’ll see higher energy bills, unwanted critters and damage to your garage floor. Replacing it in time will keep your garage clean, dry and well insulated.
If you see gaps under your garage door or your seal is worn out, this step by step guide will help you replace it in no time. Whether you’re a DIY pro or a first timer, this is easy to follow and will give you a snug, weather tight fit for your garage.
What is a Garage Door Bottom Seal?
A garage door bottom seal is a flexible strip attached to the bottom of a garage door to close the gap between the door and the floor. It prevents dust, dirt, water, pests and cold air from getting in and keeps the garage clean and insulated.
These come in different materials like rubber, vinyl and silicone each with different levels of durability and flexibility. The right garage door bottom seal can prevent energy loss, protect your garage from weather and extend the life of your garage door by reducing direct contact with the ground.
If your current seal is cracked, brittle or no longer forms a tight seal, it’s time to replace it. Upgrading to a good garage door bottom seal will enhance your garage’s insulation, reduce noise and keep your belongings safe from external damage.
Why is a Garage Door Bottom Seal Important?
- Saves Energy: A sealed garage door keeps warm air in during winter and cool air in during summer.
- Protects from Pests and Rodents: A damaged seal lets insects, mice and other pests in which can cause damage and contamination.
- Prevents Water Damage: Rain and snowmelt can get into your garage and cause moisture and mold issues.
- Less Dust and Debris: The seal blocks dirt, dust and leaves from getting into your garage and reduces maintenance.
- Longer Garage Door Life: Without a seal your garage door will wear out from contact with the ground faster.
- More Secure: A tight bottom seal prevents unwanted intruders by not having any gaps for them to get in.
Types of Garage Door Bottom Seals
- T-Type Seal: Inverted T shaped for residential garage doors with retainer tracks.
- U-Type Seal: U shaped for various door models great weather resistance.
- Bulb Seal: Round bottom seal that compresses when the door closes good for uneven garage floors.
- Beaded Seal: Used in commercial garage doors beaded seals fit into specific tracks for added durability.
- Threshold Seal: Unlike other seals threshold seal is attached to the floor not the door creating a strong barrier against water and pests.
- Brush Seal: Flexible bristles keep out dust, dirt and small pests while allowing for ventilation.
Signs That Your Garage Door Bottom Seal Needs Replacement
- Cracks and Fissures: Weather and use will eventually cause cracks, splits or brittleness in the seal and it will no longer be effective.
- Gaps Between the Door and Floor: Even when the garage door is closed you see small gaps, the seal has shrunk or lost its shape.
- Drafts or Temperature Fluctuations: A failed seal lets cold air in during winter and warm air in during summer, making your garage less energy efficient.
- Water or Moisture in the Garage: After rain or snow water comes in your garage, the bottom seal is no longer doing its job.
- Pest Infestations: Small rodents, insects and other pests can get in through worn out seals and infest your stored items.
- Difficulty Closing the Door: A damaged seal can sometimes prevent the door from closing properly, causing misalignment or uneven closing.
Tools and Materials Needed
- Measuring Tape: To measure the length of the old seal so you can get the right size replacement.
- Utility Knife or Scissors: To cut the new seal to the right size.
- Screwdriver or Drill: To remove any screws or fasteners holding the old seal in place.
- Pliers: To pull out stubborn or damaged seal remnants.
- Cleaning Cloth and Mild Detergent: To clean the retainer track before installing the new seal.
- Lubricant (Optional): To make it easier to slide in the new seal.
- Garage Door Bottom Seal: The new one should match your door type and fit in the retainer track.
- Adhesive (If Required): Some seals need adhesive or weatherproof glue to stay in place.
Step-by-Step Guide to Replacing the Garage Door Bottom Seal
Step 1: Measure the Old Seal
- Measure the length and width of the old seal so you can buy the right size replacement.
Step 2: Remove the Old Seal
- Pull or slide the old seal out of the track.
- If the seal is glued or stuck, use a utility knife or pliers to carefully remove it without damaging the track.
Step 3: Clean the Track
- Use a damp cloth or mild cleaner to remove dirt, debris and any leftover adhesive from the track.
- Make sure the track is dry before moving on to the next step.
Step 4: Prep the New Seal
- Cut the new seal to length if needed.
- Apply a dab of lubricant to the edges of the seal to make installation easier.
Step 5: Install the New Seal
- Slide or press the new seal into the track, making sure it’s even and snug to the bottom of the garage door.
- If the seal needs adhesive, follow the manufacturer’s instructions.
Step 6: Test the Seal
- Close the garage door and check for gaps or uneven areas.
- Make sure the door closes smooth and the seal touches the floor.
Maintenance Tips for Your New Garage Door Bottom Seal
- Check Often: Check your seal every few months for cracks, wear or shrinkage.
- Clean the Seal: Wipe the seal with a damp cloth or mild soap.
- Lubricate the Track: Apply silicone lubricant to the retainer track.
- Make Sure it’s Sealed: Close the garage door and check the seal to make sure there are no gaps.
- Replace When: Even with regular maintenance garage door seals will wear out. If you see major damage, replace the seal.
Common Mistakes to Avoid
- Wrong Seal: Make sure you choose the right seal for your garage door model so it fits and works properly.
- Bad Measurements: Measure length and width incorrectly and you’ll get a bad seal.
- Not Cleaning the Track: Dirt in the track will prevent the new seal from fitting and you’ll get gaps.
- Cheap Material: Using a cheap or low quality seal will wear out faster and not work as well.
- Bad Installation: Installing uneven or not securing properly will misalign and reduce protection.
- No Maintenance: Not checking and cleaning the seal regularly will lead to premature wear and tear and repairs.
Conclusion
Replacing your garage door bottom seal is a must do simple maintenance that saves energy and protects your garage from pests, dirt and water damage. A sealed garage door stops drafts, keeps indoor temperatures and extends the life of your door. Follow the step by step guide and you can install a new bottom seal in no time and have a perfect fit. Regular maintenance will keep your garage door seal in top shape for years to come.
If you’re not sure to do it yourself, consider hiring a professional like swift garage doors to do it for you.
Frequently Asked Questions (FAQs)
- How often should I replace my garage door bottom seal?
The lifespan of a garage door bottom seal varies depending on weather conditions and usage. Generally, it should be replaced every 2-3 years or sooner if it shows signs of wear. - Can I replace the garage door bottom seal myself, or should I hire a professional?
Yes, replacing the seal is a simple DIY task if you follow the correct steps. However, if you’re unsure or have a complex garage door system, hiring a professional is recommended. - What type of garage door bottom seal is best for my door?
The best type depends on your garage door model and local climate. T-type and U-type seals are common for residential doors, while threshold seals provide extra protection against heavy rain. - Does a garage door bottom seal help with insulation?
Yes, a properly installed seal prevents drafts and maintains indoor temperatures, improving energy efficiency.
