Window Repair Sash Repairs

Window sashes must be regularly checked for mold, mildew and damage. You can reduce the cost of repairs in the future by catching these issues early before they become out of control.

The sash is an interior frame that can move upwards and downwards in windows that are open. This article will teach you how to do easy repairs to your sash.

Weather Stripping

Wooden window sashes are a great way to add a classic look to your home. They are also sturdy and will last for many years if they are properly maintained. However, they may become damaged or deteriorate in time because of exposure to the elements and normal wear and wear and tear. Sash repair experts can restore windows to their original condition and maintain their appearance much longer than replacement windows.

The first step for repair sash window damage is to fix weather stripping, which is found on both the sash as well as the frame. It could cause drafts if worn or loose. To fix it, start 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, take the sash off and mark its height and width so that you can locate replacement weather stripping to match.

Then, remove the sash from its holder, and place it on a flat surface to allow you to reach all four sides. If your sash was double-hung, take out the ropes and weights that should be buried in the jamb lining. Once you've taken the sash off and the weights, use a utility knife to cut away the old weather stripping at the corners. Then, remove it by hand or using a putty knife.

After the sash has been cleared it is time to replace the parting stops. These are long pieces of wood that are used to separate the two sashes. Pam prefers to replace them with standard 1/2-inch-by 3/4-inch window trim from the lumberyard. However, you could also use a piece of scrap wood.

After removing the parting stops and trimming them to your desired length then apply a thin layer of glazing compound to the bottom of the sash. Smooth out the compound using your putty knife, and then let it dry for at least a day. After the putty has completely dried, you can apply a topcoat of acrylic. This will protect the putty and give your sash a new look.

Sash Hardware

The hardware that holds window sashes is prone to wearing out from age and use, and the result can be a window or door that isn't able to open or close easily. It's good to know that replacing or fixing this hardware is usually simple and inexpensive. If a sash is difficult to operate try spraying grease into the jamb channel and then open it to see if this fixes the problem. If the problem persists, it is most likely the sash balance. You will need to take off the window sash to reach this hardware.

Ideally, window sashes must be able to open and close with very little effort, however, this can be a difficult task when the weights are worn or if the sash meeting rail isn't properly coated. This issue can be due to a variety of factors that include the lack of maintenance or an unmatched weight rating.

If the hinge arms on a window begin to sag this can cause the sash drag, and then eventually to hit the frame in the opposite corner (Photo 1). To correct the issue ensure that the sash is aligned in the frame's opening and take it off. If the sash is secured to the hinge arm, you'll have to loosen the hinge arm and replace it (Photo 2). Then, you can install the new sash (Photo 3).

Due to hinges that are sagging, and a general lack in energy efficiency, windows that are old, especially those in older houses, could be difficult to open and close. Sometimes just a few easy fixes can allow these windows to operate smoothly again and save homeowners money on their energy bills.

It is essential to have the tools you need before you begin. Begin by marking the position of the hinge channel on the frame using pencil (Photo 1). This will help you get the channel back into place correctly when you're finished. Remove the sash, and remove all the hardware, including the parting beads cords, chains, and cords that keep the sash in place. Soften any hardened putty with an electric heat gun set to medium and fitted with an shield to block the nozzle. Take off the old sash and keep it in a bag labeled.

Sash Weights

Sash weights can be changed to improve the performance of your window repairs sash, and also reduce the cost of energy. Sash weights are heavy, lead or iron cylinders enclosed inside a hidden compartment and connected to the movable window sash using a rope. They provide counterbalance that allows the window to be opened and closed without the need for mechanical or electrical devices. The sash-weights are typically ignored or discarded by homeowners and then turned into scrap when they fail; therefore, you may need to search for replacements.

It is difficult to recover a sash-weight that has fallen from the cavity, so you'll want to find one that fits correctly. You will also require a new piece of string, a length of sashcord and some sashpulleys to tie the new weights to the cord.

Mortise and Tenon joints are used to join windows made of older wood. Hammers and pins can be used to take out the wood pegs holding the parts together. The majority of these pegs are large on one side, but smaller on the other. It is essential to remove first the smaller diameter sides. Sashes made later in the century used glue instead of pegs and can be separated by cutting through the glue line using an instrument, and then tapping the mortised section loose with a mallet.

Once the sash is freed and removed, you can take off the sash stop and access the weight pocket. Usually this is accomplished by drilling an opening in the bottom of each jamb. The hole is surrounded by an unfinished wooden panel that can be removed to reveal the interior workings.

After the sash has been stopped and the access panel has been removed, you can remove the weight you used and replace it. Make sure you weigh the sash before you do this, as the old weights may be different sizes than what is needed. Once the new weight has been installed, thread a string through the sash pulling mechanism. Then, attach the string to your boxed frame. Leave a few inches protruding at the top of the string to allow for future adjustments.

Sash Cords

Most old double-hung windows come with a chain or cord connected to the weights that keeps the sashes level within the jamb. Over time, these cords may become damaged and make it difficult to raise the windows. A new sash cord will give you the ability to move the sash up and down and keep it in place when it is opened.

The first step to replace cords for sash is to locate and remove the access panels in the jambs. They are usually screwed or nailed in and require removal. You could use a hammer and chisel to remove them but it's best to lay down dust sheets prior to commencing any work.

After removing the access panel, you can begin working on the sash. Utilize a flat bar, or chisel to pry the small parting beads from their grooves. They are usually wedged in or nailed in, but they can be prised free, so it's worth taking your time here. If the sash is in place, break the mortise and the tenon joints by using a hammer and pin punch or screwdriver, then remove the wood pegs on the components. The sash should be able move freely now, but it may require some lubrication in order to feel less stiff.

Measure the length of sash chain/sash cord needed to reach the sash slot on the bottom from the pulley located at the top of the jamb. Cut the cord/chain and secure it in the step 6 above. You can use either a hammer, nails, or screws. However nails are less likely than screws to cause damage.

Unless you've bought an item that replaces the old counterbalance system it's best to keep the original balancing weights in place. It's not expensive to buy these from salvage shops for architectural purposes and they'll be easy to install once you've got the sash unlocked. Based on the size of your window, one or two sash weights might be required to keep it open.