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What Is Window Sash Repairs And How To Use It
Window Sash Repairs

Window sashes need to be checked regularly for mold, mildew and damage. By catching these problems early, you can save money on future repairs.

The sash is an internal frame that is able to move upwards and downwards in windows that are open. This article will show you how to make several simple repairs to sash.

Weather Stripping

Wood window sashes give an elegant look to your home. If properly maintained, they will last for years. They may, however, get damaged or deteriorated over time due to exposure or normal wear and tear. Sash repair experts can restore windows to their original condition and keep them looking great longer than replacement windows.

The first step for repair sash window damage is to fix weather stripping. It's found on both the sash and frame. It can cause drafts if it's damaged or is 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 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 the sash is double-hung, take out the ropes and weights that should fall into the pocket within the jamb lining. Once you've taken the sash off and the weights, use a utility knife to cut off the old weather stripping at the corners, and then take it off by hand or using a putty knife.

Once the sash has been cleaned, you can replace the stoppers that separate the two sashes. These are long pieces that split the sashes. Pam likes to replace them with standard 1/2-inch by 3/4-inch window trim from the lumberyard, but you can also replace them with a piece of scrap wood.

After removing the stopper and cutting it to length and then apply a thin layer of glazing compound to the bottom of the sash. Smooth it out using your putty knife, then let it dry for at least a few days. When the putty is fully cured, you can apply a topcoat of acrylic latex. This coating will protect the putty and give your sash a new appearance.

Sash Hardware

The hardware that supports the window sashes may wear out over time and with use. This could lead to the window or door that is difficult to open or close. It's good to know that replacing or repair of this hardware is typically easy and affordable. If a sash is difficult to operate you can try spraying some lubrication into the jamb channel, and then slide it open to see if that solves the issue. If not, the issue is likely with the sash balance, and you'll need to remove the sash in order to access this hardware.

Sashes for windows should be able to open and close with little effort. However, this can be a challenge if the weights have been worn out or the sash-to-rail meeting rail is not properly glazed. This problem can be due to many factors, including the lack of maintenance or an unmatched weight rating.

If the hinge arms on windows begin to slide, this could cause the sash to drag and eventually hit against the frame in the opposite corner (Photo 1). To address this problem, first ensure that the sash fits squarely in the opening of the frame and then remove it from the window. If the sash was screwed onto the hinge arm, unbolt the hinge and replace it. (Photo 2). Install the new sash next (Photo 3).


Due to sagging hinges, and a general lack in energy efficiency, old windows especially in older houses, could be difficult to open or close. In many cases just a few easy fixes can help these windows function smoothly again and help homeowners save money on their energy bills.

It is crucial to have the tools you need before you begin. Mark the hinge channel location on the frame (Photo 1) with a pencil. This will help you get the channel back on position correctly after you've completed. Remove the sash, and remove all the hardware, including the parting beads cords, chains, and cords that keep the sash in place. Heat gun with nozzle shield and medium setting will soften any hardened glue. Remove the old sash, and keep it in a bag with a label.

Sash Weights

Sash weights can be replaced to improve the operation of your window sash and decrease the cost of energy. Sash weights consist of heavy iron or lead cylinders that are encased in a hidden cavity and attached by ropes to the moveable window sash. These weights function as counterbalances, allowing you to open and shut the window without requiring mechanical or electrical devices. When they fail, sashweights are often ignored or disabled by homeowners.

It is difficult to recover an sash-weight which has fallen from the cavity, so you'll want to find one that is suitable for the. window repair will also require an additional piece of string, a length the sash cord, as well as some sash pulleys to connect the new sash weights the sash cord.

Older wood windows are joined with mortise and tenon joints. The wood pegs holding the parts together can be removed by a pin punch and hammer. The majority of them have large diameters on one side and a smaller size on the other side, so it is important to remove the small-diameter sides first. Later sashes made use of glue instead of pins. They can be separated by using a knife or mallet.

After the sash is released, you can remove sash stops and gain access to the weight pockets. This is usually done through a small hole at the bottom of each jamb. This hole is covered by an access panel made of wood which can be removed so that you can observe the inner workings of the frame.

When the sash has been shut off and the access panel has been removed, you can take off the weight you used and replace it. Weigh the sash first, as the weights you've got may not be of the right size. Once the new weight is installed, run an appropriate length of string through the pulling mechanism. Then, nail the string to the boxed frame. Leave a few inches protruding at the end of the string to allow future adjustments.

Sash Cords

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

To replace sash cords the first step is to remove the access panels from the jambs. They are usually screwed or nailed in and require removal. You could use a hammer or chisel to prise them off, but it's always better to lay down dust sheets prior to commencing any work.

After the access panel has been removed, you can start working on the sash. Utilize a flat bar, or chisel to pry the small partsing beads out of their grooves. It is essential to take your time as they're often wedged or nailed in place. If the sash is still in place, pry the mortise-and tenon joints using a hammer or screwdriver and then take out each wood peg. You should now be able to move the sash around freely, although it might require oiling if it seems stiff.

Measure the length of sash chain/sash cord required to reach the sash slot on the bottom, and the pulley on the top of the jamb. Cut the cord/chain and then secure it as in the previous step. 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 is recommended to keep the original weights for balancing in place. It's not expensive to buy them from architectural salvage stores and they'll be easy to install once you've got the sash open. Based on the size and shape of your window you might need to install one or two sashweights in order to keep the sash open.

Read More: https://www.repairmywindowsanddoors.co.uk/amersham-windowrepair/