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How to Do Window Pane Replacement

It is important to replace a damaged or cracked window pane as soon as possible. It could lead to a decline in energy efficiency or moisture to accumulate between the two panes.

The average homeowner can replace a window pane at less than the cost of replacing a complete window. To replace a pane you'll need to take out the old window and clean the frame and then apply the new putty.

Remove the Old Pane

The first step in replacing the window pane is to remove the old pane from the window. It is important to use protective equipment, such as gloves and masks for face. If you can, it is best to work on the ground and use a ladder that can be secured safely to prevent falling. After the old window is removed, you can begin working on the frame of the window. It's a good idea to lightly sand the area. After that, apply a coat of linseed oil on the frame of the wood to aid in helping the glazing compound stay pliable.

If you are ready to begin the actual work, make sure that your workspace is clear of any debris and that you have all the tools you will need. Utilize a utility blade to remove any old putty on the glass or inside the window frame. It may take a bit of time and effort, but it is essential to a quality finished product.

Once you've removed all the old putty, you'll have a clean opening for your new window. Measure the size of this opening and subtract 1/8 inch from both the width and length to ensure you get a new window pane that will fit perfectly. It is also recommended to take an old shard of pane to your local hardware store to match the type and thickness of glass.

Window panes aren't only meant to be pretty, they can actually help make your home more energy efficient by cutting down on the loss of heat, glare and noise. Luckily, replacing a single window pane is a easy task you can tackle yourself.

After replacing the damaged pane, you'll need to caulk and cover the edge of the window to hold it in place. This will not give your window a stunning appearance, but also make it more energy efficient and waterproof. Installing a window film can save you money on your energy bills by cutting down on the amount replacement of window glass heat lost through your windows.

Then, remove the Putty

It can be difficult to remove the glazing putty used to secure the panes of tempered glass in their frames. It hardens when it dries, and this makes it difficult to remove without cracking the glass. To prevent this from happening, it's best to remove the old putty prior installing the new glass. It's not easy to remove window putty, but with patience and effort it is doable. Wearing leather gloves and eye protection is recommended when working around glass. It could be hazardous.

Take out any nails or spriggs holding the window in place prior to you begin removing the putty. These nails were used to keep the window in place before double or upvc glazing was available. These nails are usually in the corners and can be removed with the use of a screwdriver, or the hacksaw if they're visible. If there are any that are hidden, you'll need to use a small chisel or putty chisel to cut them free from the frame.

Mineral spirits will be needed to remove any old putty that remains after removal of the nail. This product can be purchased at the majority of hardware stores. It should be used in a space that is well ventilated. Use the oil in brief bursts, as overheating the wood or paint can cause it crack or explode.

Another option is to use the heat gun to soften the putty. This works best with putty that has been painted over or is hardened and can be very effective. Make sure you keep moving when using the heat gun as staying in one spot for too long can cause burns to the wood and cause cracked glass.

You can also employ steel wool to remove the putty, but this method isn't as effective and can be quite messy. This method should be used only as a last resort and is not recommended for homes with children.

Removal of the Metal Glazing Points

A baseball hit or the tree branch that is blown off can cause damage to a window. Although most people think that a damaged window needs total replacement window seals of the frame and sash just replacing the glass is enough to restore the view of your home and reduce energy bills.

The first step to replacing glass in windows is to take off the metal points which hold the previous pane in place. Using a putty knife, scrape off as much softened glaze as is possible to expose the points. There should be four points each on the opposite side of frame. When you can see the metal, grab each one with needle-nosed pliers and pull it straight out. Be careful not to pull too hard; if the point is stifling or breaks, you may damage the frame and need to replace it.

After removing the metal shards and putty, you are able to begin to make the frame. Make sure the grooves are clean and free of dents and cracks. A heat gun is useful in this process but be careful and utilize a low temperature to prevent the wood from shrinking or deteriorating.

If the glass is double-paned you can take a piece of the previous pane to ensure that the new one will fit properly. Spread a thin layer silicone sealant on the inside frame rabbet and press the new glass onto it. Finally, trim any excess sealant using a razor blade and apply a coat of exterior paint to complete the job.

If you only have one pane of glass to be installed, skip this step and go straight to the next. If the thickness of your new glass differs from the one you had previously one, you'll require a new piece of glass that is the appropriate size at your local glass cutter. Before installing the new pane, put a glazier's push point in each corner of the frame rabbet (two on each side for a smaller window, and more for larger windows). This will provide additional support to the pane and help keep it from getting smashed over time.

Installing the New Pane

Window panes aren't just for appearances; they can also help improve efficiency of energy, shield your home from the elements and insects, as well as improve security. Therefore, if they break or become damaged, it's important to replace them as soon as possible. Many homeowners are unaware of the best way to replace a window. It's simple to fix a damaged window pane. You'll need just some supplies and easy steps.

Start by removing your old windowpane. Be careful not to cut yourself. Make sure you have a towel available to clean up any remaining glass, and then save the shards to make a new pane. After removing the old glazing take a measurement of the opening of the frame using the help of a tape. Write these down and subtract 1/8 inch from each side to create the new glass size. This ensures a secure fit and allows for natural expansion and contraction of the glass. You can bring the measurements to the local hardware store or home improvement shop and they will cut a new piece of glass for you. Bring a piece of glass from the old window that matches the thickness and shape.

Once the new pane has been put in place, apply a small bead of caulk that is made of latex around the edges to create an airtight seal between the glass and frame. Glazier's points should be placed into the holes of the frame along the glass edge. There should be two points on each side for eight points total.

If you have any remaining wood molding around the edges of the frame, you can put in these as well. Make sure to wash the mold and putty completely before reinstalling it to ensure it will not interfere with the new pane.

It is tempting to delay replacing a damaged pane of glass, but this could cause further damage to both the glass and surrounding sash. It also increases the likelihood that you'll need to replace the entire window in the future. Anyone with basic tools can replace a single broken glass pane.