How to Install Garage Door Windows

by: Wilson Huang
September 2023
6 comments

Installing windows in your garage door can drastically transform the appearance and functionality of your space, allowing natural light to flood in and enhancing the curb appeal of your home. While the idea might seem daunting to some homeowners, with the right tools and guidance, adding windows to your garage door can be a straightforward DIY project. In this comprehensive guide, we'll walk you through each step of the process, ensuring you achieve professional results. If you're seeking to elevate your garage's aesthetic and add value to your property, read on to discover the essentials of garage door window installation.

Benefits of Changing your Garage Door Window

Remember, upgrading or changing the windows on your garage door can do more than just give it a facelift. These modifications can introduce an array of advantages, from illuminating your space with natural light to adding tangible value to your home.

Enhanced Natural Lighting: One of the most immediate benefits of adding or updating windows on your garage door is the influx of natural light. This can transform a previously dim and dark garage space into a bright and welcoming area, potentially reducing the need for artificial lighting during the day.
Improved Aesthetic Appeal: Changing or adding windows can give your garage door a fresh, modern look, boosting the overall curb appeal of your home. With a variety of designs and styles available, homeowners can choose windows that complement their home's architecture and personal style preferences.
Increased Property Value: Upgraded garage doors, especially those with stylish windows, can increase the overall value of your home. Prospective homebuyers often appreciate both the functionality and the enhanced appearance that garage door windows offer, making your property more appealing in the real estate market.
Ventilation and Airflow: Some garage door windows can be opened, providing the added advantage of ventilation. This can be particularly beneficial for those who spend a significant amount of time working in the garage, as it helps in circulating fresh air and reducing any buildup of fumes or odors.

Safety First

Of course, installing windows would be exciting but, but it's essential to tread with caution. The process involves certain risks that, if overlooked, can result in accidents or damage. Before you dive in, consider these four critical safety precautions to ensure a smooth and hazard-free experience.

Wear Protective Gear: Always wear safety goggles to shield your eyes from dust, debris, or broken glass. Additionally, donning a pair of durable gloves can protect your hands from sharp window edges and heavy materials.
Secure the Garage Door: Ensure that the garage door is in the "down" position and disconnected from the automatic opener, if applicable. This prevents any accidental movements which might result in injuries.
Use the Right Tools: Utilize the appropriate tools for the job and make sure they are in good working condition. Avoid makeshift solutions as they can lead to accidents or cause damage to the window or door.
Work with a Partner: It's advisable to have a second person to help, especially when removing or placing the new window. This not only ensures the job is done efficiently but also provides immediate assistance in case of any unexpected situations or emergencies.

Tools Needed

Once you have your safety needs met, now its time to assemble the tools you'll need. Installing the windows are a simple process and only requires the following tool.

Screw driver - To secure the windows with the provided screws.
Ladder - If installing the windows on the upper panels.
Tape Measure + Painters tape - To measure and mark the cutout on the garage door.
Drill - to start your pilot holes.
Reciprocating Saw - To make the cutout on the garage door panel.
Bubble Level - To make sure the windows are straight
Adhesion Promoter for Plastic (Optional) - If you plan on painting the polypropylene frames. Can be purchased from your local automotive or home hardware store. Home Depot US or Canadian Tire (CA)

list of tools for installing garage door land windows

How to Install the Windows

Now that you have all the tools you need (and the second person), it is time to install the windows. Remember the hardest part of the installation is making the cut. Always measure twice and cut once.

*We recommend installing 1 window at a time*

*If you plan on painting the window frames, paint them before installation*

Step 1 - Unboxing the Windows:

Unbox the windows and make sure you have an outer frame, a glass unit, and an inside frame. The inside frame should be the ones with the screw holes. Check the packaging for screws, and preassemble them to make sure everything fits together.

exploded view of garage door land 1224 window

Step 2 - Marking the Cutout:

Using the provided measurements (from the product page, or through customer service) use the tape measure to draw out the cut-out dimensions. It is recommended to use the bubble level and the painter's tape to mark out and make sure each dimension is straight.

Mark cutout on garage door for window installation

Step 3 - Drill Pilot Holes:

Now that you have your dimensions marked out on the garage door. Use your drill to put some pilot holes in your garage door. This way it will make it easier for your reciprocating saw to get started.

drill pilot holes into garage door

Step 4 - Cut the Opening:

Insert your reciprocating saw into a pilot hole and use it to cut along the drawn lines.

Cutting out garage door section with reciprocating saw

Step 5 - Remove Section and Trim:

After completing the initial cut remove the cut out section and trim down and spots you have have missed making sure the cutout is as straight as possible.

Remove section of garage door that was cut out

Step 6 Install Window (2 People Required):

Once you finished the cutout, place the front frame (one without the screw holes) into the opening. Have the second person hold the outside frame as you go inside the garage to place the glass unit into the opening. Once the glass unit is in place, put the back frame into the opening sandwiching the glass unit between the front frame and back frame. Secure both frames together with the screws provided. The screws should be snug but not overtightened, to allow for thermal expansion.

Step 7 - Repeat Steps :

Now that you finished, the first window stand back and admire your handy work for a little bit. Then repeat steps 2-6 for the other windows.

Finished garage door after installing the windows

Enjoy Your Garage Door Windows!

And just like that you revitalized your garage door at a fraction of the cost. Think of those garage windows as more than just a facelift; they're about lighting up spaces and boosting value. With a bit of care and the right tools, you're on your way to a brighter garage. Cheers to your next DIY adventure!

garage door window installed

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6 comments

william Peterson
Oct 10, 2024 at 15:55
I have a 18’ x7’ 2 car garage door I would like 1 window across the entire span of the door.will I need new totion springs to lift the extra weight 2 " clear glass is that hard for a dyi project? what is the estimaye in cost ??
Mark Andrews
Oct 09, 2024 at 09:21
Your guide on installing garage door windows is incredibly detailed and easy to follow, especially with the step-by-step breakdown of each part of the process. I appreciate how you highlighted the importance of aligning the window inserts correctly to avoid issues with insulation and functionality. The tip about using caulk to prevent water leakage is something I wouldn’t have thought of but makes perfect sense.

I’m curious about how window installation might affect the overall energy efficiency of the garage. Have you found that adding windows significantly impacts insulation or temperature regulation, particularly in areas with extreme climates like Arizona? Would love to hear your thoughts!
Peter Chavez
Jul 15, 2024 at 18:31
Do you have windows for metal garage doors? I’m guessing cheap made door thin metal. It was installed when garage was built.
Peter Chavez
Jul 15, 2024 at 18:31
Do you have windows for metal garage doors? I’m guessing cheap made door thin metal. It was installed when garage was built.
Frank
Jun 19, 2024 at 18:40
Hi, I’m interested in 12 windows approximately 14 high by 22 wide and a brown dark brown color Is a nine by eight insulated door from a company called advantage
Steven Marlborough
May 17, 2024 at 17:20
What is thermal efficiency of the glass panels? Are they single, double or triple paned?
Thanks

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How to Install Garage Door Windows

Benefits of Changing your Garage Door Window

Safety First

Tools Needed