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Window Sash Repairs

Check the windows sashes regularly for any damage, mildew and mold. You can reduce the cost of repairs in the future by catching the issues in the early stages before they become too much.

The sash is the internal frame that is vertically moved upwards or downwards in windows that are open. This article will show you how to carry out a few simple repairs to the sash.

Weather Stripping

Wood Window Doctor sashes give an elegant look to your home. When properly maintained, they can last for years. They may, however, get damaged or deteriorated over time due to exposure or normal wear. Thankfully, sash repair experts can bring your windows back to their original condition and Window Doctor keep them looking great for much longer than newer replacement windows.

The first step to repair sash windows is to address 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, start by determining your window's brand and the date of manufacture for the glass (etched in the corner of the glass or on the aluminum spacer between panes). Take the sash off and mark its width and height so you can find a new weather stripping that is compatible with the original.

Then, remove the sash from its holder, and place it on flat surfaces to allow you to see all four sides. If your sash was double glazing-hung, you must remove the weights with their ropes that should have fallen into the pocket in the jamb lining. Once you've removed the sash using a utility knife, you can use it to remove the old weather stripping at the corners, and then take it off by hand or using a putty blade.

Once the sash has been cleaned, you can replace the stoppers that separate the two sashes. These are long pieces wood that divide the two sashes. Pam prefers to use standard 1/2-inch by 3/4-inch window trimming from the lumberyard. However, you can substitute for a scrap piece of lumber.

After removing the stoppers for parting and trimming them to the desired length and thickness, apply a thin layer of glazing compound to the bottom of the sash. Smooth the compound using a putty tool and allow it to 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 a fresh appearance.

Sash Hardware

The hardware that holds window sashes is prone to wearing out from time and usage, and the result can be a door or window that isn't able to open or close easily. It's a good idea to know that replacing and fixing this hardware is usually straightforward and cost-effective. If a sash becomes difficult to operate you can try spraying some oil into the jamb channel then slide it open to see if this fixes the problem. If the issue persists, it is most likely to be due to the sash's balance. It is necessary to remove the window sash in order to reach this hardware.

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

If the hinges on windows begin to slide, this could cause the sash to drag, and then eventually to hit the frame at the opposite corner (Photo 1). To fix this issue, first make sure the sash is firmly seated in the opening of the frame and then take it out of the window. If the sash has been fixed to the hinge arm, unbolt 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 particularly those in older homes, may be difficult to open and close. In most cases, a few simple repairs can transform these windows into smooth operators and save homeowners cash on energy costs.

It is crucial to have the tools needed before you start. Mark the location of the hinge channel on the frame (Photo 1) using a pencil. This will make it easier to position the channel in the right position after you've finished. Take the sash off and take out all the hardware, including the parting beads cords, chains, and cords that hold the sash in place. Soften any hardened putty using a heat gun set to medium and equipped with a nozzle shield. Remove the old sash and put it in a bag with a label.

Sash Weights

Whether your window sash repairs are to replace a damaged cord or just to keep the windows functional by replacing worn out sash weights will improve sash operation and help reduce energy consumption. Sash weights are heavy lead or iron cylinders enclosed in a concealed cavity and linked to the moveable window sash using rope. These weights provide counterbalance which allows the window to be shut and opened without the use of electrical or mechanical devices. If they fail, sashweights are usually left unnoticed or disabled by homeowners.

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

Older wood windows are joined with mortise and tenon joints. The wood pegs that keep the parts together can be removed by the use of a pin punch and hammer. The majority of these pegs have an enormous diameter on one side and a smaller size on the other side, so it is essential to remove the smaller-diameter ones first. Later sashes made use of glue instead of pins. They can be separated by using a knife or mallets.

After the sash has been removed then you can take out the sash stop and gain access to the weight pocket. This is usually done through a small hole at the bottom of each jamb. The hole is then covered with an unfinished wooden panel that can be removed to reveal the interior workings.

After the sash has been stopped and the access panel removed, you'll be able to take off the weight of the old sash and replace it with the new. Make sure you weigh the sash prior to you do this, since the old weights could be different sizes than what is needed. Once the new weight is in place you can tie a string around it and then thread it through the pulley for the sash. Then, nail the string to the boxed frame. Leave a few inches protruding at the head of the string for future adjustments.

Sash Cords

In most old double-hung window, a chain or cord is affixed to the weights. This keeps the sashes within the jamb in a balanced manner. As time passes, these cords can get damaged and render it impossible to raise windows. A new sash cord will give you the ability to move the sash up and down and hold it in 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 into and need to be removed. You may be able to use a hammer and chisel for removing them however, it is always best to lay down dust sheets prior to starting any work.

After removing the access panel, you are able to begin to work on the sash. Utilize a flat bar, or chisel to pull the narrow parting beads from their grooves. It is important to take your time because they are usually wedged or nailed in place. If the sash is still in place, pry the mortise-and-tenon joints out using a hammer or screwdriver, then remove each wood peg. The sash should be able to move around freely now, however it might require some lubrication to make it feel less stiff.

With the sash in an open position Take a measurement of the sash chain to extend from the pulley in the top of the jamb to the sash slot in the bottom. Cut the cord or chain and then attach it as described in Step 6 above. You can do this with a hammer, nails or screws. However, nails are less likely than screws to cause damage.

If you don't have a kit that replaces the counterbalance system that was in place before, it's recommended to keep the original weights for balancing in place. They're not expensive and simple to install if you purchase them at architectural salvage stores. Based on the size of your window doctor, one or two sash weights could be needed to keep it open.