How Much Does Window Glass Replacement Cost?

Highlights

• It typically costs between $180 and $411 to replace glass in a window, while the national average cost is $281.
• The factors affecting the cost of window glass replacement include the type of glass, the type and size of the window, the window brand, and the cost of labor.
• Some of the signs that window glass needs to be replaced include cracked windowpanes, condensation between windowpanes, increased energy bills, cold glass, and damage to historic windows.
• A homeowner with window glass replacement experience may be able to tackle this project themselves, but most homeowners will want to hire a professional to ensure the job is done properly.

If window glass is broken, cracked, or chipped, it’s time to replace it. Window glass replacement cost depends on the type of glass, size, features, tint, and manufacturer. If the windows are older but the frame is in good shape, replacing the old glass with updated window glass can lower energy costs, increase the value of the home, add UV protection, and reduce noise pollution. According to HomeAdvisor, window glass replacement cost ranges from $180 to $411, with many homeowners spending approximately $281. Depending on the type of window, some glass replacements can cost as little as $100 or as much as $700. Many window professionals charge between $50 and $75 per hour to replace window glass, although the labor cost to install windows can increase if repairs need to be made or the glass replacement is complicated, with multiple glass panes. The cost to replace windows ultimately depends on the type and size of the window, the type of glass, the number of panes, the location of the window, and any special coating. The more customized the window and the glass, the more the cost of replacing windows will increase.

To find accurate window glass replacement costs, homeowners are advised to search online for reputable window replacement companies in their area. Local companies may have a window replacement cost estimator that will offer a rough calculation of pricing, and they can supply precise window replacement quotes when a homeowner decides on window glass replacement. Even homeowners who pay for window cleaning and other maintenance may discover chipped, cracked, or broken window glass in their home. Homeowners will want to familiarize themselves with the factors that affect window glass replacement cost, the types of window glass available, signs that it’s time to replace window glass, and some frequently asked questions regarding glass window prices.

Factors in Calculating Window Glass Replacement Cost

How much does it cost to replace windows in a home? That depends on several factors. Window installation cost can vary from the national average of $281 due to glass type, window type, window size, manufacturer brand, and local labor prices.

Glass Type

The average cost to replace windows can fluctuate due to the specific type of glass used in the window. Some types of glass can range from $10 to $100 per square foot, but window glass replacement prices typically run from $3 to $12 per square foot on average, with double-pane glass ranging from $6 to $12 per square foot. Some of the most common types of glass are single pane, double pane, triple pane, low-e (low-emissivity), gas-filled, laminated, tempered, and frosted. Each of these glass types is discussed below.

Window Type

There are typically various types of windows throughout a home, and the style chosen will affect the overall price of window glass replacement. While beneficial double-pane windows are common in most houses, the cost of replacing double-pane windows is considerably more than for single-pane windows. Depending on the type of window, a window professional may need to dismantle the window frame to replace the glass, which will result in higher labor costs.

• Bay window glass replacement. Bay windows usually have three panes of glass that extend beyond the walls of the house, and it costs $320 to $3,800 to replace all three panes. In the center is a large fixed pane of glass with two narrower panes set at an angle on either side. The two side panes sometimes open to allow for increased airflow, but on some window models, they’re fixed in place.
• Bow window glass replacement. The cost to replace every panel of glass in a bow window ranges from $690 to $1,800. Bow windows typically have between four and six panes of glass. Similar to bay windows, they also project outward beyond the walls of the house.
• Casement window glass replacement. Casement window glass costs from $150 to $1,190 to replace. Casement windows open and close like a door, with some models opening with a hand crank and others with a latch that can be pushed open and pulled shut. There are a few different types of casement windows, and they can have between one and three panes of glass.
• Egress window glass replacement. Egress window glass replacement can cost from $100 to $800 on average. Egress windows are commonly found in basements and bedrooms and provide an emergency escape from a home. They must be large enough for someone to crawl out of, and they’re usually single-hung, double-hung, or casement windows. Homeowners are advised to check their local building codes to see if egress windows are required in their area.
• Picture window glass replacement. Picture windows have large fixed panes of glass that do not open. Because of their large size, the cost to replace picture window glass runs from $175 to $925.
• Sash window glass replacement. Sash windows cost between $100 and $950 per sash to replace. Each sash is a single pane of glass (either single- or double-hung) that opens and closes vertically. Sash windows can also open horizontally, but in order for them to be considered sash windows, they need to have moving panels.
• Skylight window glass replacement. The cost to replace skylight window glass ranges from $150 to $3,500 depending on the size of the window and the number of panes. Skylights are installed in the roof to provide extra light and sometimes additional ventilation. Models that increase airflow can be opened with an electric motor, a pole, or a crank.
• Storefront window glass replacement. The large, fixed-in-place panes of glass in a storefront window can cost from $500 to $3,000 to replace. They typically cost $5 per square foot, but tempered glass can cost as high as $25 per square foot. Storefront window glass is typically clear, but the panes are available in various colors and styles.
• Storm window glass replacement. The average cost to replace glass in a storm window runs from $100 to $400. Storm windows are typically used with single-pane windows to reinforce the protection against strong winds and colder temperatures. Storm windows can also reduce the amount of noise pollution and condensation on the window.

Window Size

Window size is an important factor in determining window glass replacement cost. To measure the window size, homeowners can multiply the width by the height. Typically, the bigger the window, the more expensive it will be to replace the glass. Another important factor for homeowners to consider when calculating glass replacement cost is the thickness of the glass. Windowpanes can range from ⅛ inch thick to a full inch thick. If a homeowner wants to change the thickness of the glass pane, the frame will need to be replaced, since specific glass thicknesses require certain frames. Replacing a window frame can run from $200 to $600 depending on the type of window.

Window Brand

Window glass replacement cost will vary by window brand. Homeowners will need to keep in mind that some manufacturers require that the sash is replaced at the same time as the glass to keep the warranty valid. Additionally, replacing the glass without also replacing the window sash can cause leaks at the glazing point, regardless of the brand chosen. Below are common window brands and the average price to replace double-pane glass.

• Pella window glass replacement. Pella is a popular and respected window manufacturer that offers many different types of windows across varying price points. Homeowners can easily select and customize Pella windows with numerous shapes, styles, and materials. The cost to replace Pella window glass runs from $200 to $290.
• Jeld-Wen window glass replacement. Jeld-Wen manufactures energy-efficient windows and window glass replacements that cost between $220 and $330.
• Harvey window glass replacement. Known for its vinyl windows, Harvey manufactures top-rated energy-efficient windows and doors. The cost to replace Harvey window glass ranges from $250 to $300.
• Simonton window glass replacement. Simonton window glass replacement costs from $250 to $400. It may be difficult to find replacement Simonton window glass without the frame.
• Alside window glass replacement. Alside is a building supply company that is known for its energy-efficient vinyl windows. All of the company’s windows and doors meet Energy Star requirements, and replacement glass costs from $250 to $500.
• Milgard window glass replacement. Milgard is an established window and door manufacturer known for quality vinyl windows. Milgard windows are sold only by authorized dealers; replacement glass typically costs from $300 to $600.
• Andersen window glass replacement. Known for its high-quality windows with exceptional warranties, Andersen makes its windows available at home improvement stores across the country. The cost to replace Andersen window glass runs from $400 to $600. Andersen will guarantee the replacement glass only if the frame is also replaced.

Labor

Most window professionals or glaziers charge approximately $50 to $75 per hour for window glass replacement. It takes about 45 to 60 minutes to replace a pane of glass, so if the window glass replacement project involves multiple panes or complex fittings, the cost of labor can increase significantly. The process involves removing the old glass pane, installing the new one, and sealing the glass in the frame.

Additional Costs and Considerations

When homeowners are budgeting to replace glass in a window, it’s helpful to have all the information regarding any additional costs and considerations that will affect the price of the project. These can include the cost differences between glass replacement and glass repair, glass replacement versus a whole window replacement, door window glass replacement, window reglazing, and any additional customizations.

Glass Replacement vs. Repair

Including labor, the cost to replace window glass can run from $300 to $880, while the cost to repair the glass pane can cost between $100 to $500. If the glass has a crack smaller than an inch, it can be repaired by mixing a resin and a hardener and applying it to the crack. The excess resin should be removed, and the glass pane should cure for 24 hours before it is cleaned. If the crack is larger than an inch, it’s recommended that the entire pane be replaced.

Glass Replacement vs. Whole Window Replacement

A glass pane can be replaced if the frame is in good shape but the glass is cracked or broken. Some manufacturers warranty the replacement only if the sash is replaced at the same time. If the window frame is old and would benefit from being replaced, the extra expense is generally worth it due to the increased energy efficiency and utility bill savings. The cost of new windows for a house averages $750 per window.

Door Window Glass Replacement

The style and size of a door window are the factors that affect door window glass replacement cost. Replacing window glass panes in a door can cost as little as $100 for a front door and as much as $5,500 for a sliding glass door, with the price fluctuating due to the frame structure, type of glass, complexity of the replacement, and door usage. Some homeowners decide to replace the entire door instead of just the glass, since the prices can sometimes be comparable. Below are the average costs for several common door window glass replacement types.

• Back door glass replacement. The window glass in a back door can be cracked or broken by thrown balls, toys, or a kicked-up rock from a lawnmower. Since back doors are typically more functional and less decorative than front doors, many homeowners will replace the entire door; the glass replacement cost of $100 to $500 is similar to the cost of a new back door.
• French door glass replacement. French doors come in pairs and are commonly used as an entrance to a balcony or patio. The average cost to replace window glass in a French door is between $200 and $450, depending on the frame condition, size, and style.
• Front door glass replacement. The cost to replace window glass in a front door ranges from $100 to $500. Because these doors are used frequently, it’s common for the glass to become foggy or chip. The final price depends on the size of the glass pane, the door size and type, and the complexity of the replacement job.
• Patio door glass replacement. Patio doors are typically sliding doors with tempered glass, but French doors can also be utilized as patio doors. The average price to replace the glass in a patio door is between $150 to $1,200, depending on size, style, glass thickness, and number of glass panes.
• Shower door glass replacement. The cost to replace shower door glass runs from $500 to $1,800, depending on the type, style, and size. Shower doors typically use fogged tempered or laminated single-pane safety glass.
• Sliding door glass replacement. It usually costs from $500 to $5,500 to replace glass panels in a sliding glass door, depending on the number of panels and the size. Homeowners should keep in mind that some sliding door warranties may require the entire sliding glass door be replaced instead of just the glass.
• Storm door glass replacement. Replacing storm door window glass can cost from $150 to $275. Wind-blown debris and other projectiles can chip, crack, or break the glass, which will result in reduced energy efficiency and protection from the elements.

Window Reglazing

Window reglazing costs from $250 to $500 per window for labor and materials. The process involves removing the old putty around the windowpane and applying new putty for an airtight seal around the glass. If the frame and window are in good condition and the putty is deteriorating, reglazing is an energy-efficient and lower-cost option compared to putting in new windows. Window reglazing can improve the strength and insulation of a window.

Customizations

Any additional add-ons to the window glass replacement costs such as window frame replacement, window tinting, window seal replacement, or window films will increase the cost of the project. Below are the costs of some of the most common customizations and add-ons that homeowners may want during window glass replacement.

• Window frame replacement. Including labor, repairs for wooden window frames cost between $175 and $300, for aluminum frames $250 to $500, and for vinyl and fiberglass frames $300 to $600. If window frames are damaged or broken, it’s important to repair them or replace them if repairs are not possible. Window frames in good working order can reduce heating and cooling costs by maintaining a solid, airtight seal.
• Window tinting. Window tinting costs approximately $7 per square foot. Many homeowners decide on window tinting to increase privacy, reduce glare, diminish UV damage, and lower utility bills.
• Window seal replacement. Replacing a window seal can run from $70 to $120. Double- and triple-pane windows have an airtight seal around the panes of glass to protect against air leakage. When the seal fails, the outside air can get inside along with dirt, pollen, and grime. To repair the seal, the windowpanes need to be removed and cleaned, the gas between the panes needs to be replaced, and the panes need to be resealed.
• Window UV film. UV film costs from $5 to $12 per square foot, depending on quality, style, and color. When applied correctly, UV film can block 99 percent of harmful UV rays and reduce solar heat by up to 82 percent. Homeowners can choose from reflective and nonreflective options as well as a variety of colors.
• Spectrally selective window film. Spectrally selective window coating costs between $8 and $16 per square foot. While not as energy efficient as traditional low-e coating, this unique style of low-e window film provides visibility that is superior to the visibility of the standard low-e coating.

Replacement Costs by Type of Window Glass

Window glass replacement typically costs from $3 to $12 per square foot, depending on glass type. If specialty glass needs to be custom ordered, the pricing can increase significantly. Double- and triple-pane glass is typically more expensive due to the gases between the windowpanes.

Double-Pane

Double-pane window glass replacement ranges from $150 to $600, depending on window type, size, frame material, and glass thickness. With their double layer of glazing, double-pane windows are the standard style in many homes. These windows increase energy efficiency by reducing thermal loss.

Frosted

Frosted glass is commonly used to let light in but prevent passersby from looking into a home. The cost to replace frosted window glass panes is $350 to $800.

Gas-Filled

Argon gas is typically used in windows that have more than a ¼-inch distance between glass panes. For double- or triple-pane windows that are filled with argon gas, glass replacement can cost from $375 to $850.

Krypton gas is used in double- or triple-pane windows that have a space of less than ¼ inch between panes. Replacing krypton gas-filled glass panes ranges from $525 and $1,190. Since krypton gas is denser than argon gas, it insulates better and provides increased energy efficiency.

Laminated

The cost to replace laminated glass is $275 to $625. Produced by bonding layers of glass with resin, laminated glass is about five times stronger than standard glass. It can reduce noise pollution and withstand breakage from a thrown toy, rock, or wind-blown projectile.

Low-E

Low-emissivity glass costs between $350 and $840 for replacement. The layer of metallic oxide coating reduces UV rays passing through the window by 99 percent and can diminish energy loss by 30 percent to 50 percent.

Single-Pane

Single-pane window glass replacement can cost from $150 to $400. Single-pane windows don’t provide as much insulation against temperature fluctuations or noise pollution and are commonly found in older homes.

Tempered

Tempered glass replacement runs from $180 to $700, depending on window type and size. This type of glass is a safety glass that shatters into rounded pieces to reduce the chance of injury. Tempered glass is four times stronger than untreated glass and is used to comply with specific safety standards or building codes.

Triple-Pane

Triple-pane window glass replacement runs from $400 to $950, depending on glass quality and brand. Also known as thermopane, triple-pane glass is the most energy efficient, with three layers of glazing. Homeowners who live in extreme climates will often choose triple-pane glass for increased insulation against the elements.

Do I need window glass replacement?

If the window frame is in good shape but the glass is damaged, it’s a good candidate for window glass replacement. When homeowners notice a cracked or chipped windowpane, moisture or condensation between the glass panes, increased energy bills, or cold window glass during the winter months, or if they have regulations they need to follow regarding historic windows, window glass replacement may be the best option.

Cracked Windowpanes

If a windowpane is cracked, the only way to fix it is to replace the glass. Replacing the window glass can prevent breakage and injury while continuing to keep the window energy efficient.

Condensation Between Windowpanes

If there’s condensation between a double- or triple-pane window, that means the seal is broken. Moisture is getting between the windowpanes, and it can freeze or frost over in cold weather. This can cause outside air to get inside and drive up the cost of the heating and cooling bill. To ensure energy efficiency and have a tight seal around the windowpanes, a window glass replacement is necessary.

Increased Energy Bills

Replacing old, leaky windows with energy-efficient window glass that has a tight seal can lower energy bills by 10 percent to 30 percent. New window glass can prevent thermal heat transfer and air leaks and keep a home comfortable year-round.

Cold Glass

If double- or triple-pane windows are cold to the touch, that means the layer of gas between the windowpanes has escaped and the glass is no longer insulated. Replacing the panes and the gas will ensure proper insulation and a consistent temperature inside the home.

Damage to Historic Windows

Historic homes have specific guidelines when it comes to windows. To preserve the original look of the building, the windows need to match the historical architecture. If the window frame is still in good condition but the glass is cracked or broken, window glass replacement is the best option, since replacing windows in an old house can be an expensive project that is complicated by historic preservation ordinances.

Window Glass Replacement: DIY vs. Hiring a Professional

For a DIY replacement project, homeowners with window glass replacement experience can expect to pay between $100 and $630 for the windowpane and another $100 to $200 for supplies. Supplies can include glazing tools, glazing removal tools, pliers, heat gun, gloves, and glass cutting tools. However, the average homeowner likely won’t have the skills and tools necessary to complete this as a DIY project.

Since window glass replacement can be tricky, many homeowners opt to hire a professional glazier for the job. A professional has the experience to install the new window glass correctly, making sure the new window is sealed and properly placed. Depending on the window glass manufacturer, the warranty may be valid only if the glass is installed by a window professional, which makes it even more important to check the fine print and lean toward hiring a professional. To ensure the proper seal and fit, and to avoid cracks and chips, a window professional is usually the best option for a window glass replacement project.

How to Save Money on Window Glass Replacement Cost

The cost to replace window glass can quickly add up and strain a home improvement budget. One way to save is to use the cheapest window glass, but there are other ways to stay within a budget without compromising on quality.

• Get multiple quotes. Get at least three quotes from reputable window professionals in your area.
• Keep it simple. Customizations such as frosted windows and glazing bars can increase the overall cost of the window glass replacement project.
• Negotiate for a lower price. Many of the best window replacement companies leave room for compromise and will negotiate with customers for lower prices, within reason.
• Schedule for the off-season. Many window companies are at their busiest during the spring and fall, so the prices are more expensive then due to high demand. Some companies will offer discounts during their slower months to attract more customers.
• Replace multiple windowpanes at once. If there are several windows in the house that need window glass to be replaced, schedule them all to be completed at the same time. Some window companies offer bulk discounts for window glass replacement.

Questions to Ask About Window Glass Replacement

Talking to a window glass professional and asking the right questions can help minimize miscommunication and get the best results. The following are some questions to ask before starting the project.

• How long has your company been in business?
• Do you have experience replacing window glass in the type of windows that are in my home?
• Can you provide references?
• Are you insured?
• What certifications do you or your technicians have?
• Do you have a portfolio of past projects?
• How much will it cost to install windows in my home?
• What type of glass do you recommend for my windows?
• Do you provide free estimates?
• Is a permit required for window glass replacement?
• How long will the replacement project take?
• Who will replace the window glass?
• How will the weather affect the replacement project?
• What do I need to do to prepare for the replacement?
• What warranties do you offer?
• What is your cleanup routine after the windows have been replaced?
• What is your payment plan?

FAQs

Before deciding on window glass replacement, homeowners will want to have all the information they need regarding the cost. Below are several frequently asked questions for homeowners to consider before starting the project.

Q. Can I replace one pane on a double-pane window?

To have a proper airtight seal, replacing both panes in a double-pane window is recommended. Both glass panes should be replaced at the same time to ensure effective insulation and a tight seal.

Q. Can I fix a crack in a window without replacing it?

It’s possible to fix a crack in a window without replacing it, but it’s considered a temporary fix before the glass pane will need to be replaced. There are glass repair kits that even beginner DIY-ers can use successfully. The glass needs to be cleaned before the epoxy hardener and resin that come with the repair kit are mixed together. The mixture will need to be applied to the crack and left to dry thoroughly. A sharp blade will remove any excess mixture, and the glass can be cleaned and polished with a microfiber cloth.

Q. What does IGU mean for windows?

An insulated gas unit, or IGU, is two panes of glass with argon or krypton gas in between with an airtight seal. The gas acts as an insulator and reduces the amount of heat transfer.

Q. Can I replace just the glass in a window?

If the window frame is in good condition and the glass is chipped, cracked, or broken, the windowpane can be replaced. If there are issues with the entire window, a full window replacement may be the best option.

Q. What is the difference between IGU and DGU glass?

A double glazing unit (DGU) is the same as an insulated gas unit (IGU). Both types utilize multiple panes of glass with gas in between for increased insulation.

Q. Is it cheaper to replace glass or the entire window?

It’s more budget-friendly to replace the glass instead of the entire window.

Sources: HomeAdvisor, Fixr, HomeGuide