How Much Does It Cost to Convert a Window Into a Door?

Typical Range:

$250 - $4,000

Find out how much your project will cost.

Cost data is based on research by HomeAdvisor.

Updated January 26, 2022

Reviewed by Robert Tschudi, Expert Home Building and Remodeling Contributor.

Written by HomeAdvisor.

On average, the cost to convert a window into a door is $1,775, with prices ranging from $250 to $3,300. If you want high-end materials or a custom design, you could spend $4,000 or more on this project. The average cost to turn a window into a door can be a little more expensive than the cost of installing a new exterior door. Window rough openings are usually 2 inches smaller than door rough openings, so you may need to create a broader opening to add a door where a window once was.

“Converting a window to a door of the same width is a very easy job,” says Bob Tschudi, a general contractor based in Raleigh, North Carolina. “Because when they framed the window, they put the structural component—the header—above the window. That same header will protect the door. Of course, you might have to raise or lower the header, but the engineering has already been calculated.”

Average Cost to Convert a Window Into a Door

Average Cost$1,775
High Cost$4,000
Low Cost$250

Prices for Materials to Convert a Window Into a Door

The cost of turning a window opening into a door primarily lies in the materials, which can cost $40 for standard, hollow-core doors to over $7,000 for solid wood or beveled glass doors with custom elements. Typically, you don’t have to worry about working on a load-bearing wall since there’s already an opening where the window used to be. Instead, most of what you’ll spend is for new door installation costs.

Wood$40 – $5,000
Composite wood$40 – $500
Fiberglass$250 – $2,000
Sliding glass$300 – $5,500
Steel$500 – $1,230
Aluminum$100 – $2,000
Wrought iron$1,500 – $7,000
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Labor Cost to Convert a Window Into a Door

The cost to hire a licensed contractor to convert a window into a door is about $70 per hour, unless you need to widen the opening extensively. This project will take one to two days. The general contractor may charge 10% to 20% of the project total.

If you do need to widen the doorway, consult with a local electrician near you, which costs $75 per hour. Many wires may be running around the window, so it’s important to work with a professional to prevent damage to the wires or even electrocution.

Because of the size of the rough openings, a 32-inch window will convert to a 30-inch door. Doors must be at least 32 inches wide for wheelchair accessibility, according to the Americans with Disabilities Act (ADA). So keep this in mind to ensure loved ones can use the new doorway.

“Whenever the door is wider than the window, we engage with a structural engineer,” says Tschudi. “They will calculate and specify exactly what you need to keep that opening structurally sound.”

Door Cost by Type

Door types can range from $150 to $5,800 so it can change your total cost. Larger ones, like French or double doors, may also cost more to widen the window opening and insert two side-by-side doors.

French Doors

You can turn a window or a couple of windows into a gorgeous set of French doors for $600 to $5,800. This can be a more expensive project because you need to either widen one window opening or convert two windows to make space for the wide French doors.

Sliding Glass Doors

New sliding glass doors cost $300 to $5,500, with the average price around $2,000. The sliding mechanism makes this type of door less expensive than some alternatives, and custom features like privacy blinds between the glass panels will increase the cost.

Pre-Hung Doors

This door type is less expensive at $150 to $2,500, and replacing a window with a pre-hung door can save you some installation hassle. It comes attached to a frame and hinges, making it a simple and ideal setup for transforming a window opening into a door.

Double Doors

Double doors cost $750 to $5,000 and are available in various types, including French doors. French doors are lightweight double doors, but the project will be more expensive if you opt for solid wood double doors. You’ll likely need to replace two windows for double doors or extensively widen one window opening, which will also drive up the cost.

Cost Factors to Convert a Window Into a Door

Many factors can help you splurge or save on this project. The cost may increase to over $4,000 if you want all the bells and whistles, like custom designs or a smart lock safety feature.

However, if you want something simple, you can save money by choosing lightweight doors made from composite wood or pre-hung options over solid wood or heavier wrought-iron options.

DIY vs. Hire a Door Installation Professional

Hire a local door installer or a licensed contractor to turn an old window into a new doorway. You may also need to hire an electrician to handle and reroute wires surrounding the window.

This job may involve carpentry and electrical skills, both of which you shouldn’t attempt to DIY. Most of the project cost is in the materials, as the labor will be 10% to 20% of the project total. If you want to save money in the window-to-door conversion, consider opting for less expensive doors like pre-hung or sliding types.


Do I need a permit to change a window into a door?

You’ll need a permit and inspection because converting a window into a door is a structural change that may also require electrical work. Check with your municipality for permit requirements.

Can I turn a door into a window?

Turning a window into a door is a common home improvement project, but it’s also possible to convert a door into a window. Maybe you have an odd “door to nowhere” off the kitchen that you’d rather have as a window to bring in extra light. Converting a door to a window costs $1,000 to $4,000. You’ll want to work with a general contractor for this type of project.

What other projects can I do at the same time while converting a window into a door?

If you’re updating one window into a new door, you might want to hire a window installation specialist near you to upgrade your other windows. Consider where the new door leads, as you might want to build on a mudroom, new deck, or simple patio outside the doorway.

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