Guide to DIY Garage Door Trim Replacement

The garage door trim forms the door’s frame. While not a mechanical component, it can wear out or be damaged, affecting your garage door’s performance and visual appeal. A professional often does door trim repair. However, if you’re a handy homeowner, we’ll explain how to replace your garage door trim as a DIY project. This is not as simple as replacing garage door weather stripping, but it is doable.

Signs Your Garage Door Frame Needs Repair

The trim around your garage door is typically made of wood. As such, it can wear and break down for many reasons. While you can paint over spotty damage, this can cause issues in the long run (unless the trim is in good shape and the goal is to change your garage’s look). 

Nonetheless, here are signs it’s time to consider replacing your garage door trim:

• Wood Is Rotting: Once parts of the trim start to rot, it can fall apart. Replacing the damaged section may be an option. However, replacing the entire trim is better if it’s aging and needs a functional and aesthetic update.
• Pieces Are Missing: If parts of the door trim are missing, it must be repaired immediately. Wood may be deteriorating or an impact may have caused damage that can spread without door trim repair.
• Paint Is Peeling: Wood rot, damage, or weathering can cause the paint to come off. This leaves your home susceptible to more damage and can reduce its curb appeal. The trim must be repaired and painted.

Garage Door Trim Replacement Process

This type of garage door repair may not be as simple as you think. Here’s an overview of how to proceed, starting with choosing the proper materials, tools, etc.

Gather Materials and Supplies

The first step to door trim repair is to collect all the materials, tools, and other supplies needed, which include the following:

• Trim Material: Wood is the traditional choice and is highly versatile. Pine, cedar, and redwood are common trim options; they resist decay quite well. Composites like PVC or fiber cement are also durable. These resist rot, pests, and harsh weather. Aluminum or steel trims are common choices for contemporary homes.
• Tools: Your toolkit should start with measuring implements. These include a tape measure to accurately determine the door opening’s dimensions and a leveling tool to ensure the trim is horizontally and vertically level. Other necessary tools for garage door trim replacement include:
• Pry Bar: This makes it easier to remove the old trim.
• Handsaw or Power Saw: To cut trim segments to required lengths.
• Hammer/Nail Gun: This is used for securing the door trim.
• Adhesive: A construction-grade adhesive can yield a cleaner look.
• Caulk/Caulking Gun: To seal gaps between the trim and frame.
• Sandpaper: To smooth edges and prepare the surface to be painted or stained.
• Primer: It’s necessary before coloring raw wood trims.
• Paintbrush/Roller: To properly apply any primer, paint, or stain.
• Safety Gear: Wear safety glasses, gloves, and a dust mask whenever working with the door trim.
• Cleaning Supplies: Have rags or cloths handy to clean surfaces and wipe any spills. Trash bags are needed to collect debris, including old trim materials.
• Ladder: A sturdy ladder lets you safely work on trim that’s higher than you can reach.

Remove the Old Trim

A sharp blade is needed to cut through the old caulking. Then the old trim can be removed with a pry bar or flat-head screwdriver. The underlying material may be wood, rubber, or a composite layer. Note the material and its condition. It will have to be replaced if it’s damaged or deteriorated, or small holes or cracks can be filled. Water damage may require more extensive repairs.

Prepare the Area

Once the underlying surface is exposed, remove any nails or other fasteners and clean off any residual adhesive. If any rough spots remain, they must be sanded until the surface is smooth. This ensures the new trim sits flush and adheres properly. If water damage is present, a water-resistant sealant should be applied. If there’s mold or mildew, the area should be treated accordingly.

Select the Trim Material

First, the area where the trim will be installed must be accurately measured. This ensures enough material is purchased and can be cut to size. Consider all angles, corners, and other features that require special cuts. Aside from matching the layout, the trim should match your home’s architectural style, in addition to being weather-resistant and suited for your budget.

Install the New Garage Door Trim

The general process of installing new trim for your garage door is as follows:

• Initial Preparation: After the old trim is removed, the garage should be thoroughly pressure-washed. Applying a fresh strip of paint, about two to three inches wide, around the perimeter provides additional protection. Wait a few hours for the paint strip to dry.
• Decide How to Secure the Trim: In the meantime, determine how the trim will be fixed to the frame. Nails are more suited for heavier trims. However, an adhesive can be used for lighter materials and provides a cleaner look. If harsh weather is common in your area, a combination of both can increase durability.
• Cut the Trim: Using a saw, cut the trim precisely based on your previous measurements. You may want to temporarily fix the pieces in position with a nail gun and ensure everything is aligned. Use a level to determine if each piece is straight. The slightest misalignment can impact the trim’s appearance and functionality.
• Apply Adhesive: If using adhesive, apply the material evenly to the back of the trim. Avoid using too much or it may ooze out. If finishing nails are also being used, they should be placed every four to five inches. Carefully place each segment of trim where it fits.
• Inspect the Trim: Check for gaps or misalignments. Small gaps can be filled with caulk, which also provides a moisture barrier. Adjust any misalignments before the adhesive sets or more nails are used to anchor the material. Your final adjustments must ensure each piece is positioned correctly.
• Clean Up The Area: If adhesive has oozed out from the edges, remove the excess. Discard any debris or other loose materials. Leave the trim undisturbed and let it dry for 24 hours. In the interim, final adjustments can be made to ensure the trim is aligned correctly and attached securely.

Painting

The trim should be primed before being painted. Many people prefer the natural look of wood trim. Staining it can keep its appeal and protect the material. If the trim material is naturally white, you can leave it that way. However, this shows dirt easily and can get stained and discolored over time. 

A trim color that doesn’t show dirt as well is easier to maintain. That doesn’t limit you to a dark color. You can choose a neutral trim to contrast with a boldly colored door. The trim can also be the same color as your home’s facade or contrast with the door or the rest of the exterior. 

Painting garage door trim requires patience and attention to detail. Hiring a professional ensures the right equipment is used and sound decisions are made (they can also help match the trim and your garage door to your home’s style).

Frequently Asked Questions

When Should I Check for Garage Door Trim Damage?

Generally, we recommend inspecting the door trim every six months. This is usually enough to catch issues before they lead to additional damage.

Do I Need a Professional for Door Trim Replacement?

This depends on your skill and comfort level with DIY projects. If the process is complex and you’re not experienced with garage door repairs, consider hiring a pro.

How Much Is It to Replace a Garage Door Trim?

Replacing the trim is affordable compared to most garage door repairs. However, the actual cost can vary depending on the material used and if other repairs are needed.

Hire a Pro for Garage Door Trim Repair and Replacement

If your garage door trim is damaged or worn, the professionals at Mesa Garage Doors can fix it for you. Our factory-trained technicians work throughout Southern California. They can perform door trim repair or replacement to save you time and improve the look and function of your garage. Call (800) 893-1107 to learn more or get a free repair estimate.