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Window Sash Repairs

Check the windows sashes regularly for damage, mildew, and mold. You can avoid future repair costs by catching these issues in the early stages before they get out of hand.

The sash is the interior framing that can be moved vertically either up or down in windows that are open. This article will show you how to do simple sash repairs.

Weather Stripping

Wood window sashes give an elegant look to your home. If properly maintained, they will last for years. However, they can be damaged or degrade in time because of exposure to the elements and wear and wear and tear. Fortunately, sash repair specialists can restore your windows back to their original condition and maintain their appearance for longer than replacement windows.

The first step to sash window repairs is addressing weather stripping. It's found on both the sash as well as the frame. If it's damaged or worn out, it can lead to drafts and other problems. Begin by identifying the window brand and the date of manufacture for the glass (etched on the glass's corner or on the aluminum spacers between panes). Then, take the sash off and mark its height and width so that you can locate new weather stripping that matches.

Then, take the sash from its holder and place it on a flat surface to allow you to access all four sides. If your sash was double-hung, take out the weights using their ropes that should be buried inside the jamb lining. After you have removed the sash using the utility knife, you can remove the old weather stripping by hand or with a putty blade.

Once the sash has been cleared, you can install the stoppers that separate the two sashes. These are long pieces wood that are used to separate the two sashes. Pam prefers the standard 1/2-inch by 3/4-inch window trim from the lumberyard. However, you can substitute with a scrap piece of wood.

After removing the stoppers for parting and trimming them to your desired length and thickness, apply a thin layer of glazing compound over the bottom of the sash. Smooth the compound with your putty knife and let it dry for at least a few days. Once it's fully cured, apply a top coat of acrylic latex paint. This coating will protect the putty and give your sash a new look.

Sash Hardware

The hardware that supports window sashes can wear out with time and use. This can result in windows or doors that is difficult to open or close. The good news is that fixing and replacing this hardware is generally very simple and cost-effective. If a sash is difficult to operate you can try spraying some grease into the jamb channel then slide it open to see if this resolves the issue. If not, the problem is likely with the sash balance and you'll need to take out the sash to gain access to this hardware.

Window sashes need to be able to open and close with minimal effort. However, this can be difficult if the weights are worn out or the sash connecting rail isn't coated. This issue could be caused by various reasons, including the lack of maintenance or an unmatched weight rating.

If the hinge arms of a window are starting to sag, this can cause the sash's to drag and eventually land on the frame in the corner that's directly opposite the hinge arm (Photo 1). To correct the issue make sure the sash is aligned in the frame's opening and remove it. If the sash has been screwed to the hinge arm, you'll need to unscrew the hinge arm and replace it (Photo 2). Install the new sash (Photo 3).

Old windows, particularly those in older homes, can be difficult to close and open because of sagging hinges and an overall lack of energy efficiency. Sometimes, a few simple fixes can allow these windows to operate smoothly once more and help homeowners save money on their energy bills.

To make these repairs to the sash, it's important to have all the necessary tools in place before you begin. Mark the location of the hinge channel on the frame (Photo 1) with a pencil. This will help you get the channel back on place correctly when you're finished. Remove the sash, and then remove the hardware including the beads that separate (Photo 2) and the cords or chains that hold it in place. Heat gun with nozzle shield and a medium setting can soften any putty that has been hardened. Remove the old sash, and place it in a bag with a label.

Sash Weights

Sash weights can be changed to enhance the efficiency of your window sash and decrease the cost of energy. Sash weights are made of heavy lead or iron cylinders that are encased in a hidden cavity and connected by ropes to the moveable window sash. They function as counterbalances, allowing you to open and shut the window without requiring mechanical or electrical devices. If they fail, sashweights are usually neglected or not used by homeowners.

It's difficult to retrieve the sash-weight that fell from the cavity, so you'll want to find one that fits correctly. You will also need a new piece of string, a length sash cord, and a few sash pulleys to tie the new sash weights the sash cord.

Mortise and Tenon joints are used to join old wood windows. The wood pegs holding the components together can be removed with pin punches and hammers. The majority of them have a large diameter on one side and a smaller one on the other side, so it is important to remove the smaller-diameter sides first. Sashes that were made later in the century utilized glue instead of pegs and can be separated by cutting through the glue line with the help of a knife, and then tapping the mortised part loose using a mallet.

Once the sash is freed then you can take out the stopper on the sash and get access to the weight pocket. This is usually done through a small hole at the bottom of each jamb. This hole is then covered by a wooden access panel which can be removed to let you view the inside of the frame.

Once the sash is stopped and the access panel is removed, you can take off the old weight and replace it. First, weigh the sash to ensure that the weights you have might not be of the right size. After the new weight is installed, you can thread a string through the sash pulling mechanism. Then, you can nail the string to the frame, but only leave a few inches of string protruding from the head to allow for future adjustments.

Sash Cords

The majority of double glazed window repairs near me-hung windows with a history come with a chain or cord attached to the weights that helps keep the sashes balanced within the jamb. Over time, these cords can become damaged and render it impossible to raise the windows. A new sash cord will restore the ability to move the sash up and down and hold it in position when it is opened.

To replace sash cords the first step is to remove the access panels from the jambs. These are usually screwed or nailed in and must be removed. It is possible to remove them using an axe or hammer, but it is always best to lay out dust sheets before starting any work.

Once the access panel is removed, you can begin working on the sash. Make the small parting beads (also called "tie rails") out of their grooves using the chisel or flat bar. It is important to take your time, as these are often placed in a wedge or nail. If the sash remains in place, pry the mortise-and tenon joints with a hammer or screwdriver, then remove each wood peg. The sash should be able move freely, however it may need some lubrication in order to feel less stiff.

With the sash in an open position, measure enough sash cord/chain to extend from the pulley on the top of the jamb to the sash slot at the bottom. Cut the chain or cord and attach it in the previous step. You can either use a hammer and screws or nails, however nails are less likely to cause damage.

Unless you've bought a kit that replaces the old counterbalance system it's best to keep the original weights for balancing in place. They are not expensive and easy to install if purchased them at architectural salvage stores. Depending on the size of your window one or two sash weights might be required to keep it open.