How Much Does it Cost to Replace Window Glass? (2023)

By Rachel Newcomb

Oct 18, 2023
Window construction worker repairing window with screwdriver indoors.

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On average, the cost to replace window glass is $279, but can range from $180 to $409.* Window glass replacement isn’t a do-it-yourself (DIY) job, so in most cases, you’ll need to call in professionals. Because windows play a big role in your home’s energy performance, it might be time to consider glass replacement if you start to notice drafty windows and higher utility bills.

This cost guide covers what affects window glass replacement prices, offers tips on reducing window glass replacement costs, and explains why it’s usually better to choose a pro from our top-rated installation companies instead of doing it yourself.

*Article cost data via Angi, Fixr, and Home Advisor. 



Window Glass Replacement vs. Repair

In some cases, repair may be preferable to replacement. Here are some of the most common window glass repair jobs.

Window IssueCost to Repair

Window leak


Window thermal seal


Foggy windows


Damaged glass




Window Glass Replacement Cost Factors

Window glass replacement costs an average of $279, but most homeowners spend between $180 and $409. Window glass replacement costs vary by glass type, window size, the type of window, and your location.

Some types of glass, such as double-glazed and thermal windows, cost significantly more to replace than plate or flat glass. Costs vary primarily because of different strength levels and energy efficiency. According to the U.S. Department of Energy, a low-emissivity (low-e) window coating costs 10% to 15% more than regular windows, but reduces energy loss by 30% to 50%.

The type of window and installation complexity also plays a significant part in glass replacement prices. For example, double-hung windows filled with argon or krypton gas cost more to replace than single-paned windows. Prepare for a much more expensive project if you plan to replace bay or bow windows.

Here is a detailed look into the factors that affect your total window glass replacement cost.

Type of Glass

When you replace your window glass, you’ll have several options at varying price points. The glass type can affect the project’s complexity. For example, installing triple-pane glass is more complicated than installing single-pane glass.

Cost by Glass Type

See how much replacement costs vary by the type of window glass.

Type of GlassCost per Square Foot











We’ve gone into greater detail about each window glass type below:

Window Size

The window size is one of the most important factors in determining the total cost of window replacement. Generally, the glass in larger windows is costlier and more complicated to install. Replacing large panes requires more skill and labor, which increases the cost. Glass thickness is also a factor. Standard window sizes are between 1/8- and 1-inch thick. Changing the glass thickness may mean you also need to replace the frame, which costs $200 to $600.

Cost by Size of Window

Below you’ll find standard glass sizes and prices based on double-pane glass, with each pane being 1/2-inch thick.

Window Size in InchesCost of Materials

24″ x 36″


30″ x 36″


24″ x 54″


36″ x 42″


28″ x 58″


46″ x 46″


46″ x 54″


Type of Window

The type of window has a big impact on window glass replacement cost. Each type has a different number of panes that come in various sizes.

Cost by Window Type

Here’s a breakdown of the cost of window glass replacement by window type.

Window TypeCost











Bay window (3 panes)


Bow window (5+ panes)


Geographic Location

Your geographic location could impact how much your window glass replacement costs. Homeowners living in colder areas should prioritize investing in glass with better insulation properties. Those in warmer climates should consider windows with adequate ventilation and window films designed to reduce cooling costs.

Get Estimates From Local Window Installers Near You
Just answer a few questions, and we’ll take care of the rest!



Professional vs. DIY Window Glass Replacement

Replacing window glass is complicated and most homeowners choose to hire a professional they have experience with this type of project. If you choose to DIY, it will cost between $200 and $830 for the glass and supplies.

While DIY window glass replacement can save you money, contractors can install the glass properly and can generally finish quickly. Plus, they’re able to offer warranties and guarantees on their work.

Professional Glass Replacement

The first step to professional glass replacement involves measuring for new windows and assessing the type of window and the glass’s thickness and size. Next, they’ll carefully remove the existing damaged or broken glass, taking precautions to avoid damaging the surrounding area. After they clean and prepare the window frame, the contractor will remove any debris. The new glass is then measured, cut, and fitted into the frame.

Window installation cost is between $50 to $75 per hour to replace window glass and most projects take 30 to 45 minutes; however, some replacements could take as long as 90 minutes.

Here are some benefits of hiring a pro to replace your window glass:

DIY Glass Replacement

Unless you know how to replace window glass, we don’t recommend tackling this project yourself. Glass is fragile and can easily break. Window glass replacement requires precise work to ensure the glass fits in the frame and to prevent air leaks or sealing problems. Plus, glass replacement could take longer for homeowners and leave your home looking like a construction zone.

Below are a few more considerations before you attempt DIY window glass replacement:



How to Reduce Window Glass Replacement Costs

Here are a few saving tips to lower your window glass replacement cost.



Extra Options to Consider When Replacing Window Glass

There are other projects and add-ons to consider when you’re replacing window glass that go above and beyond just changing the glass. Below you’ll find common upgrades when replacing window glass.

Frame Replacement

You can replace the whole frame instead of just the glass. If your window frames are old or damaged, window frame replacement may be a better option. Window frame replacement costs between $184 and $598, with an average of $379.

Window Film

If you’ve considered window film, now would be the best time to if you’re already replacing the glass. A few popular choices include:

Window Tinting

Window tinting is one way to have better control over your home’s temperature and privacy. All window tinting is film, but not all film is tinted. Tinting also involves changing the window’s shade or color, while most films are clear. Window tinting prices range from $7 to $110 per square foot.



Our Recommendation

An avid DIY’er may think they can handle window glass replacement themselves, but we recommend hiring a pro to get the job done correctly. Reach out to at least three professional glaziers to compare window glass replacement costs and find the best companies for window replacement. Request detailed quotes and read the fine print on warranty options.

Get Estimates From Local Window Installers Near You
Just answer a few questions, and we’ll take care of the rest!



Window Glass Replacement Cost FAQ

Is it cheaper to replace an entire window or just the glass?

In most cases, replacing just the glass instead of the entire window is more cost-effective. Replacing the window costs $850 on average, while glass replacement is $279. Replacing the glass will give you many of the same benefits as a new window, such as energy savings and better climate control.

How do you replace one piece of glass in a window?

You’ll need to remove the pane from the window frame and find a replacement that’s the same size and width. You could cut your own glass, but this is difficult and dangerous work. Then, you’ll mount and glaze the window and ensure a watertight seal.

What are the benefits of replacing the glass in a window?

Replacing window glass can improve your home’s insulation. This can help to lower your heating and cooling costs and keep your home at a comfortable temperature.

What is the cost of a window replacement?

Window replacement costs $300 to $2,100 per window, with an average cost of $850. Cost depends on several factors, such as the window material, type, and size, as well as whether you want a full-frame or retrofit replacement.

What is the cost of replacing window glass?

Replacing window glass costs $180 to $409, with an average cost of $279. The main cost factors are glass type, window size, type of window, and geographic location.