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How to Replace Window Panes

A damaged or cracked window is an issue. This can be an opportunity to upgrade your windows to energy efficient or insulated ones, and reap advantages like improved comfort, increased resale values and reduced utility bills.

It's a task you can tackle yourself at a fraction of the cost of hiring an expert. It requires the right equipment and an hour or two of your time.

Glass

Replace your single-paned windows using tempered or insulation glass to improve the efficiency of your energy, reduce noise, and preserve the historical integrity of your old home. The majority of homeowners with basic hand tools can repair windows replacements near me with ease. You will also require an extra window pane, glazier's tips pliers, and latex glaze putty. If needed you may use a heating gun to warm the old putty. Wear safety goggles and gloves before you begin. Working with broken glass could result in serious injuries.

Remove any broken glass pieces that remain. This is best done using a pair of pliers, however, a flathead screwdriver may be effective in a pinch. Utilize a wood chisel or putty knives to remove any old putty remaining around the frame and window sash. Be careful and slow making sure not to break the existing window sash. This should be done on an elevated ladder, not on the ground. Also, have someone on the ground to keep it in place.

Make sure that the window frame is ready to receive the new pane after you have removed the old glue. To allow for seasonal expansion or contraction and contraction, subtract 1/8 inch from the measurements of width and height. These measurements can be sent to a home center or hardware store to have cut a piece replacement of window glass stock glass to the right size. You can cut the glass yourself if you possess the appropriate tools.

After putting in the new pane, run a small bead of caulking around the edges to seal it against weather. Then, place a glazier's tip on each side of the frame to secure the pane in place. The points should not be too tight that they cause friction between the frame and sash however they should not be loose.

Before applying the putty, make sure to knead it until it is smooth and free of lumps. Make it into pencil-sized strips. The first strip should be glued to the corner of the frame. Work from one corner to another to ensure it's even and smooth.

Glazier's Points

The glazier’s points are small triangular pieces of steel which help to secure the glass into the window frame without causing damage to the delicate surface. Knowing how to use these hidden tiny pieces of help is simple and can save you money on professional installation or the cost of new glass.

After getting rid of the old putty glazier points and any remnants clean the frame thoroughly using a utility knife. If needed it is necessary to lightly sand the wood along the grooves of the rabbet to smooth rough spots. If you sand wood, protect it with painter’s tape to avoid accidental damage.

Take measurements of the empty frame and write down accurate measurements. These measurements can be brought to the hardware or home center store, and the new pane will be cut a bit smaller. This will ensure a secure fit, and allow for expansion and contraction.

Place the new pane into the frame and press it in place with your hand. Then, use the tip of your chisel or the back of the putty knife to tap in the glazier's points as shown in Figure 11. After you're done, the points should be in line with the top edge of the pane, and the raised shoulders of the points should be just below the lip of the rabbet groove.

Apply a thin layer of glazing compound to the rabbet grooves and the edges of the glass. This will protect and seal the edges. Allow it to dry and cure completely.

Install the new window sash when the glazing compound has dried. The first step is to coat the wood with an even layer of linseed. This will keep the new putty from soaking up moisture and drying out and cracking over time. Apply this coat using a brush or the tip of your putty knife, then use the chisel or the back end of the putty knife to gently press the new sash and glazier's points into the grooves of the rabbet. Repeat this process in intervals of 10 inches all around the frame.

Putty

A baseball that is thrown or a rock that is errant or falling branch could cause a window to crack or break. Luckily, most windows can be repaired by simply putting a new piece in the right place. The glass is held in position by a small metal clip, called a glazier's point and putty. This compound is also referred to as glazing compound. Remove the old pane and clean the area with a rag, a scraper that is a pull type or a wood chisel. Wear protective glasses and gloves while you do this work. If the window is attached to the frame, you'll need to use a heat gun to soften the adhesive prior to cutting it loose.

If you are planning to install your original sash, you must remove the molding that supports the old pane. Then sand the sash to make sure it's flat and ready for a new caulk. After the sash has been installed, you can apply a silicone caulk on the glass. This will ensure that it won't leak over time or discolor.

Remove the glazing points from the rabbets, the grooves in the sash where the glass is. If they're difficult to work out, try placing the hand tool, such as a heat gun to soften them first. When using a heating tool, make sure to not scratch the sash or its railings.

Make the bed for your new pane after removing the old glaze and putty. Roll a rope with glazing compound between your fingers and make it around 1/2 inch thick. Press it into the rabbets, where the glass will be put. The glass should rest against the putty on both sides. If necessary you want to tap your glass lightly into the rabbet with your thumb.

If the new pane has a crack you can fill it with a solvent-based glue or silicone caulk before pressing it into the sash. Otherwise, you'll need to putty over the crack to form a tight seal and keep water out. When the putty dries then clean the oily film off the glass using an abrasive and allow it to dry completely prior to painting. If you paint before the putty is fully dry, it won't form an effective seal and could leak or discolor over time.

Paint

If you've had a broken window pane, you may be concerned about the expense of replacing it. However, replacing a single glass pane doesn't need to cost a fortune if you do it yourself. Even a double-paned window can be replaced for a fraction of what it costs for a professional.

If you are working with large glass window replacement windows first ensure it is securely attached to the frame. This task is relatively easy and fast with the right tools and techniques.

When you are ready to begin taking down the old window pane. Pry out the metal glazing points that are attached to it. They are basically tiny metal triangles which function as "nails" which hold the window in within the frame of wood. They are submerged beneath a layer of glazing putty that transforms into a solid moulded wedge that holds the window firmly in place and conceals the window's points.

After you have the old pane taken away clean the surrounding frame and wood. Scrape off any paint that has been used, and sand the rabbet grooves that the glazing points were. These should be sanded down to bare wood, to allow you to paint them the same color as the rest the frame. After sanding, apply a layer of flax oil to the bare wood to help extend its lifespan.

Next, measure the size of the window's opening. It is necessary to measure the horizontal and vertical dimensions of the entire opening as well as the thickness. To determine the exact size of the new pane subtract 1/8 inch from both measurements. This will also allow for expansion and contraction of the glass window replacement near me during seasons of change. Take these dimensions to the hardware or home improvement store, and they will have the glass cut for you.

Now, it's time to bed the new window pane. To do this, place the pane inside the frame and move it around until a 1/16 inch of putty remains between the edge of the glass and the sash on all four sides. Use a putty knife to smear the putty evenly, making sure that there isn't an excessive amount of excess putty in the corners and along the edges. When the putty dries, it can be painted with the same color as the frame to prevent water and air from leaking into the frame and causing fogging.