Window Sash Repairs

Sashes for windows must be inspected regularly for signs of mold, mildew and damage. By catching these problems early you will save money on future repairs.

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

Weather Stripping

Wooden window sashes can give a classic look to your home. They are also durable and will last for many years provided they are properly maintained. However, they can be damaged or degrade as time passes due to exposure to the elements and wear and tear. However, sash repair experts can restore your windows to their original condition and keep them looking fantastic for much longer than newer replacement windows.

The first step for sash window repairs is addressing weather stripping, which is found on both the sash as well as the frame. It can cause drafts if worn out or loose. To fix it, begin by determining your window's brand and glass manufacturer date (etched in the corner of the glass or on the aluminum spacer between panes). Then, remove the sash and mark its width and height, so you can find replacement weather stripping to match.

Then, you can remove the sash from its holder, and place it on flat surfaces to allow you to reach all four sides. If your sash has a double-hung, you'll need to remove the weights and the ropes that go with them that should have fallen into the pocket of the jamb liner. After removing the sash with the utility knife, you can remove the weather stripping from the old sash by hand or using a putty blade.

After the sash has been cleared, you can replace the parting stops. These are long pieces that divide the sashes. Pam prefers to replace them with standard 1/2-inch by 3/4-inch window trim from the lumberyard, but you can also use a piece of scrap wood.

After removing the parting stops and trimming them to your desired length, apply a thin layer of glazing compound on the bottom of the sash. Smooth out the compound using your putty knife, and window repairs then let it dry for at least a day. When the putty is fully dried it is possible to apply a topcoat of acrylic latex. This will protect the putty and give your sash an updated appearance.

Sash Hardware

The hardware that supports the window sashes may wear out over time and with use. This could result in a door or a window that is difficult to open or close. The good news is that fixing and replacing this hardware is usually relatively easy and affordable. If you're having difficulty opening a sash spray some lubricant into the jamb channel. Then, you can slide the sash out to see if that fixes the issue. If not, the issue is likely with the balance of the sash and you'll need to remove the sash to gain access to this hardware.

Ideally, window sashes must be able to open and close without effort, however, this can be difficult when the weights are worn or if the sash that joins rail isn't properly glazed. This problem can be caused by a number of reasons, such as insufficient maintenance or the wrong weight rating for the specific sash.

If the hinge arms on a window begin to sag this can cause the sash drag and eventually hit against the frame in the opposite corner (Photo 1). To remedy the issue ensure that the sash is aligned in the frame's opening and take it off. If the sash was attached to the hinge arm, remove the hinge and replace it. (Photo 2). Next, install the new sash (Photo 3).

Windows that are old, especially in older homes, can be difficult to open and close, due to sagging hinges and an overall inefficiency. In most instances, a few minor repairs can turn these windows into smooth operators and save homeowners cash on energy costs.

It is important to have the tools you need before you start. Mark the location of the hinge channel on the frame (Photo 1) with a pencil. This will allow you to get the channel back into the correct position after you've finished. Take the sash off and take out all the hardware, including the parting beads cords, chains, and cords that help to hold the sash. Soften any putty that has been hardened with an electric heat gun set to medium and equipped with a shield to block the nozzle. Remove the old sash and put it in a bag with a label.

Sash Weights

Sash weights can be replaced to enhance the efficiency of your window sash, and also reduce the cost of energy. Sash weights consist of iron or lead cylinders that are enclosed in a hidden cavity and attached by ropes to the movable window sash. These weights function as counterbalances and allow you to open and close the upvc window repair without requiring mechanical or electrical devices. The sash weights are usually neglected or ignored by homeowners and then turned into scrap when they fail. Consequently, you may need to locate replacements.

It is difficult to recover an sash-weight which has fallen from the cavity, so you'll need to find one that fits properly. You will also require a fresh piece of string, a length of sashcord and some sashpulleys to tie the weights you are replacing to the cord.

Mortise and Tenon joints are used to join older wood windows. The wood pegs that keep the components together can be removed with pin punches and hammers. The majority of these pegs have an enormous diameter on one side and Window repairs a smaller size on the other, which is why it is essential to remove the smaller-diameter ones first. Later sashes utilized glue instead of pins. They can be cut with a knife and mallet.

Once the sash is freed, you can remove the stopper on the sash and get access to the weight pocket. Usually this is accomplished by drilling a hole near the bottom of each jamb. The hole is then covered with the wooden panel which can be removed to reveal the inner workings.

When the sash has been shut off and the access panel is removed, you can remove the weight you used and replace it. First, weigh the sash, as the weights you have may not be the right size. Once the new weight is in place then tie a string to it and then thread it through the pulley of the sash. Then attach the string to the boxed frame, but leave a few inches of string protruding from the head for future adjustment.

Sash Cords

In the majority of old double-hung windows, a cord or chain is affixed to the weights. This keeps the sashes within the jamb in a balanced manner. Over time, these chains can get damaged and make it impossible to raise windows. A new sash cord will restore the ability to move the sash up and down and will keep it in its place when it is opened.

To replace sash cords the first step is to remove the access panels from the jambs. These are usually installed by screws or nails and must be removed or repositioned. You could use a hammer or chisel to prise them off but it's best to lay down dust sheets prior to starting any work.

Once the access panel is removed, you can start working on the sash. Utilize a flat bar or chisel to pull the narrow partsing beads out of their grooves. They are usually wedged in or nailed but can be removed and it's worth your time. If the sash is still in place, break the mortise-and-tenon joints out with a hammer or screwdriver and then remove each wood peg. You should now be able to move the sash around freely, although it might require oiling if it seems stiff.

Take a measurement of the length of sash chain/sash cord required to reach the sash slot at the bottom from the pulley located at the top of the jamb. Cut the cord or chain and secure it as in Step 6 above. You can use a hammer and nail or screws, but nails are less likely to cause damage.

It's best to leave the original weights in place unless you've purchased a kit to replace the counterbalance. They're not costly and simple to install if purchased them at architectural salvage stores. Depending on the dimensions and shape of your window, you may require one or two sashweights in order to keep it open.