What Is Replacing French Door Glass And Why Is Everyone Dissing It?

What Is Replacing French Door Glass And Why Is Everyone Dissing It?

Replacing French Door Glass

It is fairly simple to replace a broken glass pane inside a French Door. It involves cleaning the glass pane and removing molding or trim, and putting in an entirely new window pane.

French doors have multiple glass panes that are separated by functional muntin bars, also known as mullions. They are available in a variety of styles and can also include triple-pane glass to increase energy efficiency, cut down on sound and reduce the glare.

How to replace a broken glass pane

Before you start you begin, put on rubber gloves and safety glasses to shield yourself from any shards of broken glass that may fall off during the replacement process. Work in a space that is open such as a garage, and keep kids away. To make it easier to access the area, it's best to remove the window frame from its ledge. However you can still change a single pane without removing the entire frame.

With a putty-blade scrape away any old caulking or glazing compound that is around the edges of the window sash. Be careful not to damage the wood molding that holds the window in place since you'll need it in the future to hold the new window.

If you're working with a window made of steel the window could be secured with glazing points made of steel.  replace french door glass repairmywindowsanddoors 'll need to take them off along with the old putty, before you can get the glass out of the frame. Paint scraper or chisel can work. If the putty is hard to get rid of, you can use a heat gun to soften it. Keep the heat gun about an inch from the glass, then move it forward and backwards to spread the warmth. Double-up the aluminum foil, then place it on the adjacent panes. This will stop them from breaking due to heat.

After you have removed the old glass, take a damp cloth and clean the inside of the window sash to get rid of any dust or dirt. Now you can install a new piece of glass.


To cut a glass piece to size, first take measurements of the width and height of the opening. To purchase a new glass pane that is sized to fit inside the door frame, take these measurements and subtract an eighth inch from each side. Many hardware stores will cut a piece glass for you if you provide the measurement.

Warm up a small amount of putty and roll it into a 3/4-inch thick rope. Place the putty on one side of the rabbet and place the blade of your putty knife at a 45-degree angle with the frame's rabbet. To cut a piece of the pane, push the knife in a straight and straight line across the glass's edge. Repeat the procedure with the other edges of the pane. Then, scrape off the excess putty.

Remove the Broken Pane

A broken glass pane in the French door isn't just a source of irritation for the eye it's a risk to your safety. Replacing a pane of glass in a French door can be done in a couple of steps and is typically cheaper than replacing the entire door panel. Most homeowners can handle the job themselves, but professional assistance is available if the project requires special tools or skills.

Begin by removing the broken pane of glass, and taking care to clean any cracked or shattered fragments from the frame. It is important to wear gloves and goggles to avoid getting shards glass on your face or in your eyes. Then, clean out the glass's opening to remove any caulking or putty that was used to keep the previous pane in place.

The next step is to eliminate any trim or molding holding the glass in place. This can be a challenge since it could require some effort to pry the molding off. Wearing protective equipment and having a person help you with the prying is a good idea. Label the items are being removed so that you can put them back in their original positions.

Once the molding has been removed after which you can start installing the new pane of glass. Go to a glass store and take measurements of the glass's opening. It's a good idea to buy a piece made of safety glass, since it won't break as easily in the event that your French doors break again.

When you're ready to install the new piece of glass ensure that it's placed correctly in the opening. Apply a thin coating of clear silicone caulk to the edge of the glass.

After the caulk has dried, you can replace the molding. If the original nails did not penetrate the molding, you can hammer in new wire nails to fill the holes left by the old nails. The holes should be predrilled to ensure that the nails don't split through the molding. You can drill holes with very thin bits from the hardware store that is well-stocked.

Cut a New Pane of Glass

Make sure you check the spacing between the frame of the window and the edges before ordering a replacement pane. It is possible to adjust spring clips or triangulars that hold it in place if you notice gaps. Also, you should ensure that the new pane is the right size for the opening. If it's too large there could be leaks or other issues.

The first step is preparing an area for work. Using a putty knife, scrape away the old compound on both sides of the frame to expose bare wood. If the rabbets have become too rough to smooth with the putty knife, lightly sand them and then apply an exterior primer. This will stop the new glazing from drawing moisture from the wood, thereby reducing its lifespan.

Once the frame is clean and prepped and ready to be used, warm a few tablespoons of putty by kneading until it's soft and malleable. Utilize the putty knife to apply a thin layer to the inside of the rabbets, creating an even bed for the glass to rest upon. Repeat the process for the other exposed edges.

Once the putty has dried, remove any remaining metal glazing points from the grooves in the sash. Wear safety glasses prior to attempting to remove the points to ensure that you are safe from shards of glass. Heating guns with low settings can be used to gently heat the metal and loosen it so that it is possible to remove it using pliers.

When the frame and glass are ready, test-fit it by sliding it into its place. Adjust the glass as necessary before you secure it with spring clips or metal triangulars. Check that the gap between the frame and glass is uniform on all sides. Check the movement of the window sash, and make sure that the new glass does not hinder the closing or opening. Speak with a restoration specialist if you encounter any problems during the installation. They can assist you to repair and maintain your historic home.

Install the Pane of Glass

Test-fit the glass pane to ensure that it fits snugly before putting it in place. Measure the width and height of the window's opening, taking measurements to the edges outside of the L-channels. Subtract 1/8 inch from each measurement to find the size of glass you should order. By slightly undersizing the glass, you will make it easier to install and allow for seasonal expansion and contraction of the wood frame. You can take your measurements to the hardware store or home centre and they will cut a piece of glass for you. You can cut the glass yourself, in the event that you have a large sheet in your possession.

After removing the old glass pane clean the window sash grooves. Remove any glazing points that held the previous pane. This can be done using a scraper that is a type of pull, or a chisel. If the grooves are filled of putty that has hardened, slowly soften it with a heat gun. Be careful to cover surrounding windows and moldings with aluminum foil to shield them from the heat.

Scrape and sand the rabbets in which the glass sits, brushing an exterior primer on them to stop the putty from drawing out its natural oils and reducing its lifespan. Also, clean the grooves in the sash.

Knead a small amount of putty until it is soft and warm, then press it into the rabbets where the glass will go. At this stage, neatness is not important. Place the new pane into the rabbets and then wiggle it by using your fingers.

Fill any holes in the frame with silicone caulk. Then install the new glass. If the frame is equipped with other fastening mechanisms, like L-channels for example, use a hammer to pry them out from the sash grooves. Examine the frame for glass shards that may have broken free during removal, and remove them prior to continuing. Then, apply a layer of clear silicone caulk over the bottom edge of the frame, where it joins the floor to keep water and pests out of the home.