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Window Sash Repairs

Make sure to check the sashes of your windows regularly for any damage, mildew and mold. If you catch these issues early you can save money on repairs in the future.

The sash is an interior frame that moves vertically up and down in windows that are open. This article will teach you how to perform simple sash repairs.

Weather Stripping

Wood window sashes provide the classic look to your home and, when properly maintained, they will last for years. They may, however, get damaged or deteriorated over time due to exposure and normal wear and tear. Thankfully, sash repair double glazing Windows experts can restore your windows to their original condition and keep them looking great for a longer period of time than replacement windows.

Weather stripping is the most important aspect to consider when you are repairing windows with sash. It's on both the frame and sash. It can cause drafts if worn or loose. To fix it, begin by determining the brand of your window and the date of manufacture for the glass (etched in the corner of the glass or on the aluminum spacer between panes). Remove the sash and mark its width and height so you can get new weather stripping that is compatible with the original.

Next, remove the sash and place it on a table so that you can reach all four sides. If your sash is double glazed windows repair-hung, you'll have to take off the weights and the ropes that go with them that should have fallen into the intended pocket in the jamb liner. Once you've removed the sash, use a utility knife to cut away the weather stripping from the corners, then take it off by hand or using a putty blade.

When the sash is clean it is time to replace the parting stops. 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, however you can also replace them with scrap wood.

After removing the parting stops and trimming them to your desired length and thickness, apply a thin layer of glazing compound on the bottom of the sash. Smooth the compound using your putty knife, and let it dry at least a day. When the putty is fully dried, you can apply a topcoat of acrylic. This will protect the putty and give your sash a new appearance.

Sash Hardware

The hardware that holds the window sashes can wear out over time and with use. This could lead to a door or a window that is difficult to open or close. The good thing is that fixing and replacing this hardware is generally very simple and cost-effective. If a sash becomes difficult to operate try spraying lubrication into the jamb channel then open it to see if it fixes the problem. If the issue persists it's likely the sash balance. You will need to remove the window sash in order to get access to this part of the hardware.

Ideally, window sashes must be able to open and close with minimal effort but this can be difficult when the weights are worn or if the sash's meeting rail isn't properly coated. This problem could be caused by various reasons that include an absence of maintenance or an unmatched weight rating.

If the hinge arms of a window begin to lose their elasticity, this could cause the sash to slide and eventually strike the frame in the corner that's opposite the hinge arm (Photo 1). To remedy the issue, make sure that the sash is in the proper position within the frame opening and then remove it. If the sash is screwed onto the hinge arm, remove the hinge and replace it. (Photo 2). Install the new sash (Photo 3).

Due to sagging hinges, and a general deficiency in energy efficiency, old windows especially in older homes, can be difficult to open or close. In many cases, a few simple fixes can allow these windows to operate smoothly again and help homeowners save money on energy costs.

To make these repairs to sash, it's important to have all of the necessary tools lined up before you begin. Start by marking the location of the hinge channel on the frame with a pencil (Photo 1). This will allow you to get the channel back on place correctly when you're finished. Remove the sash, and remove all the hardware, including the beads for parting, cords, and chains that keep the sash in place. Soften any hardened putty with the help of a heat gun set at medium and fitted with a nozzle shield. Remove the old sash and store it in an bag with a label.

Sash Weights

Whether your window sash repairs are to replace a damaged cord or simply to ensure that the windows are functional by replacing worn out sash weights will improve sash operation and reduce energy consumption. Sash weights consist of heavy lead or iron cylinders that are encased inside a concealed cavity, and connected by ropes to the moveable window sash. They function as counterbalances, which allows you to open and shut the window without requiring mechanical or electrical devices. The sash weights are usually disregarded or disabled by homeowners, and are turned into scrap when they fail. Consequently you might need to search for replacements.

It is difficult to recover an sash-weight which has fallen from the cavity, so you'll want to find one that fits properly. You will also need a new piece of string, a length the sash cord, as well as some sash pulleys that will tie the new sash weights the sash cord.

Older windows made of wood are joined by mortise and tenon joints. Hammers and pins can be used to cut off the wood pegs that hold the parts together. The majority of these pegs are big on one side and smaller on the other. It is essential to remove first the smaller diameter sides. Later sashes used glue instead of pins. They can be cut by using a knife or mallets.

After the sash is removed then you can take out the stopper on the sash and get access to the weight pocket. Usually, this is done through an opening in the bottom of each jamb. This hole is covered by an access panel of wood that can be ripped off so that you can observe the inner workings of the frame.

After the sash has been stopped and the access panel removed, you will be able to remove the weight of the old sash and replace it with new. Make sure you weigh the sash before you do this, as the old weights could be a different size than what is needed. After the new weight is installed, run the string through the sash pulling mechanism. Then, attach the string to the boxed frame. Leave a few inches protruding at the end of the string to allow for future adjustments.

Sash Cords

In the majority of double glazed windows repair-hung windows, a chain or cord is connected to the weights. This helps keep the sashes of the jamb balanced. Over time, these cords can get damaged and make it difficult to raise the windows. A new sash cable will restore the ability to raise and lower the sash, and ensure it stays in place when opened.

The first step in replacing sash cords is to find and remove the access panels in the jambs. They are typically fixed or screwed in and will need to be removed or moved. You could employ a hammer and chisel to remove them however, it is always best to lay down dust sheets before commencing any work.

After removing the access panel, you are able to begin working on the sash. Prise the narrow parting beads (also known as "tie rails") out of their grooves using the chisel or flat bar. It is important to be patient because they are usually placed in a wedge or nail. If the sash is still in place, pull the mortise and tenon joints free with a screwdriver or hammer, then remove each wood peg. The sash should be able to move around freely now, however it may need some lubrication to feel less stiff.

With the sash open, measure enough sash cord/chain to reach from the pulley at the top of the jamb to the sash slot in the bottom. Cut the chain or cord and fix it as described in the previous step. You can employ a hammer, screws or nails, however nails are less likely to cause damage.

Unless you've bought an upgrade kit to replace the old counterbalance system, it's recommended to keep the original weights for balancing in place. It's cheap to purchase them from a salvage store and they'll be simple to install once you've got the sash open. Based on the size and shape of your window, you may require one or two sashweights in order to keep the sash open.