Why Window Sash Repairs Is Your Next Big Obsession?

· 6 min read
Why Window Sash Repairs Is Your Next Big Obsession?

Window Sash Repairs

Check the windows sashes regularly for signs of damage, mildew and mold. You can reduce future repair costs by catching the issues early before they become out of control.

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

Weather Stripping

Wooden window sashes can add a classic look to your home. They are also sturdy and last for a long time when they are maintained properly. However, they can be damaged or deteriorate over time due to exposure to the elements and normal wear and wear and tear. Thankfully, sash repair experts can restore your windows back to their original condition and keep them looking great for a longer period of time than replacement windows.

The first step in repair sash windows is to address weather stripping, which is found on both the sash as well as the frame. It can cause drafts if it's worn or loose. To fix it, begin by determining the brand of your window and glass manufacturer date (etched in the corner of the glass or on the aluminum spacer between panes). Take the sash off and mark its size and width so that you can find a replacement weather stripping that matches.

Then, take it off and set it on a surface so you can access all four sides. If your sash is double-hung, you'll also need to take off the weights and their ropes which should have slipped into the pocket of the jamb liner. After you've removed the sash, use a utility knife to cut off the weather stripping from the corners, then remove it by hand or using a putty knife.

Once the sash has been cleaned, you can replace the parting stops. These are long pieces that separate the sashes. Pam likes to replace these with standard 1/2-inch by 3/4-inch window trim from the lumberyard, however you can also use scrap wood.

After removing the parting stops and trimming them to your desired length then apply a thin layer of glazing compound over the bottom of the sash. Smooth it out using your putty knife, and then let it dry for a minimum of a day. Once the putty has fully cured it is possible to apply a topcoat of acrylic latex. This will help protect the putty, and give your sash a fresh 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. The good news is that fixing and replacing this hardware is usually relatively easy and affordable. If a sash isn't easy to operate you can try spraying some grease into the jamb channel, and then open it to see if this solves the issue. If not, the issue is likely with the balance of the sash and you'll need to remove the sash in order to access the hardware.


Sashes for windows should be able to be able to open and close with minimal effort. However, this could be difficult if weights are worn out or the sash-to rail connecting rail isn't properly covered with. This issue could be caused by many factors, including a lack of maintenance and a mismatched weight rating.

If the hinges on the window begin to move, this can cause the sash drag, and then eventually to hit the frame at the opposite corner (Photo 1). To fix this problem, first ensure that the sash is squarely inserted into the frame's opening and then take it out of the window. If the sash is attached to the hinge arm, take it off the hinge and replace it. (Photo 2). Next, install the new sash (Photo 3).

Old windows, especially those in older homes, may be difficult to close and open due to hinges that are sagging and a general lack of energy efficiency. Sometimes, a few simple fixes can make these windows operate smoothly again and save homeowners money on their energy bills.

In order to make these sash repairs it is important to have all the tools needed before you begin. Mark the hinge channel's location on the frame (Photo 1) using pencil. This will help you get the channel back into position correctly after you've completed. Remove the sash, and then remove the hardware including the beads that separate (Photo 2) and the cords or chains which hold it in place. A hot gun with nozzle shield and a medium setting will soften any hardened glue. Remove the old sash and store it in an bag that is labeled.

Sash Weights

No matter if your window sash repair needs are to replace a broken cord or simply to ensure that the windows are functional by replacing worn out weights on sash can improve sash operation and help reduce the energy cost. Sash weights are made of heavy iron or lead cylindricals that are contained in a concealed cavity and connected by ropes to the movable window sash. 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 have to find replacements.

It is difficult to recover an sash-weight which has fallen from the cavity, so you'll want to find one that fits correctly. You will also need an additional piece of string, a length of sash cord, and a few sash pulleys to connect the new sash weights the sash cord.

Older windows made of wood are joined using mortise and tenon joints. The wood pegs that keep the components together can be removed by a pin punch and hammer.  Billericay window repairs  of them have large diameters on one side and a smaller size on the other side, so it is essential to remove the smaller-diameter ones first. Later sashes used glue instead of pins. They can be cut by using a knife or a mallet.

Once the sash has been released, you can remove sash stops and access the weight pockets. Usually, this is done through an opening at the bottom of each jamb. This hole is covered with a wooden panel that can be removed to reveal the inner workings.

When the sash has been shut off and the access panel is removed, you can take off the weight that was previously installed and replace it. Be sure to weigh the sash first because the weights you have may not be the correct size. After the new weight is installed, you can thread a string through the sash pulling mechanism. Then, nail the string to the boxed frame. Leave a few inches protruding at the head of the string for future adjustments.

Sash Cords

Most old double-hung windows include a chain or cord attached to the weights that supports and keeps the sashes balanced in the jamb. Over time, these chains can become damaged and make it difficult to raise the windows. A new sash cord will restore the ability to move the sash up and down and keep it in place when it is opened.

The first step in replacing sash cords is to locate and remove the access panels in the jambs. They are usually attached by nails or screws and need to be removed. It may be possible to remove them using an axe or hammer, but it is always better to lay out dust sheets before beginning any work.

After the access panel has been removed, you can start working on the sash. Use a flat bar or chisel to pry the narrow parting beads from their grooves. These are often wedged in or nailed but can be prised free which is why it's worth your time. If the sash is in place, pry out the mortise and tenon joints using the help of a hammer and pin or screwdriver, then unhook the wood pegs attached to each piece. It should now be possible to move the sash around without difficulty, though it might require oiling if it seems stiff.

Measure the length of the sash chain or sash cord needed to reach the sash slot at the bottom from the pulley at the top of the jamb. Cut the chain or cord and attach it in Step 6 above. You can use a hammer and screws or nails, but nails are less likely to cause damage.

If you haven't purchased a kit that replaces the old counterbalance system, it's best to keep the original balancing weights in place. They're not expensive and are easy to install if you purchase them from architectural salvage stores. Based on the dimensions and shape of your window, you may need to use one or two sashweights to keep the sash open.