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Window Sash Repairs

Sashes for windows must be regularly checked for mold, mildew and other damage. You can reduce future repair costs by catching the issues in the early stages, before they become too much.

The sash is the interior frame that is vertically moved either up or down in windows that are open. This article will show you how to do a variety of simple repairs to the sash.

Weather Stripping

Wood window sashes provide a classic aesthetic to your home. When properly maintained, they can last for many years. However, they can be damaged or degraded over time, due to exposure and normal wear and tear. Sash repair specialists can restore windows back to their original condition and maintain their appearance much longer than replacement windows.

The first step for sash window repairs is addressing weather stripping, which can be found on both the sash as well as the frame. If it's worn or loose, out, it could cause drafts and other issues. Start by identifying the window brand and the manufacturer's date (etched on the corner of the glass or the aluminum spacers between panes). Take the sash off and mark its size and width so that you can get new weather stripping that is compatible with the original.

Then, remove the sash and place it on a table to allow access to all four sides. If your sash has a double-hung, you'll have to take off the weights and their ropes which should have slipped into the intended pocket in the jamb liner. After removing the sash using the utility knife, you can remove the old weather stripping by hand or using a putty blade.

After the sash has been cleared, 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 a piece of scrap wood.

After removing the parting stop and cutting it to length after which, apply a thin layer of glazing compound to the bottom of the sash. Smooth the compound with your putty knife, and let it dry for at least a day. Once the putty has 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 windows sashes can become worn out over time and with use. This could result in the window or door 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 you're having trouble opening a sash, spray some lubricant into the jamb channel. Then, slide the sash out to see if this resolves the problem. If the problem persists it's most likely the sash balance. You'll need to remove the upvc window repair sash to get access to this part of the hardware.

window repair sashes should open and close without much effort. However, this can be a challenge if the weights have been worn out or the sash-to-rail meeting rail is not properly covered with. This problem can be caused by a variety of factors, including insufficient maintenance or a mismatched weight rating for the particular sash.

If the hinge arms of a window are starting to sag, this can cause the sash to slide and eventually land on the frame in the corner opposite the hinge arm (Photo 1). To resolve this problem, first ensure that the sash fits squarely in the opening of the frame and then take it out of the window. If the sash is secured to the hinge arm, you'll have to unscrew the hinge arm and replace it (Photo 2). Then, you can install the new sash (Photo 3).

Windows that are old, especially in older homes, may be difficult to open and close due to hinges that are sagging and an overall inefficiency. In many cases, a few simple repairs can turn these windows into smooth operation and save homeowners money on energy costs.

It is important to have the tools needed before you begin. Mark the hinge channel's location on the frame (Photo 1) using pencil. This will allow you to place the channel in the correct place when you are finished. Remove the sash and then remove all hardware including the parting beads, cords, and chains that keep the sash in place. Soften any hardened putty with the help of a heat gun set at medium and equipped with a nozzle shield. Remove the old sash and keep it in a labeled bag.

Sash Weights

If your window sash repairs are to replace a broken cord or just to keep your windows functioning, replacing worn out sash weights will improve sash operation and reduce energy consumption. Sash weights are heavy, lead or iron cylinders, which are enclosed in a hidden cavity and attached to the movable window sash using a rope. These weights function as counterbalances, allowing you to open and shut the window without having to use mechanical or electrical devices. When they fail, sashweights are usually left unnoticed or disabled by homeowners.

It's difficult to retrieve the sash-weight that fell from the cavity, so you'll need to find one that fits properly. You will also require a fresh piece of string, a length of sashcord and some sashpulleys to tie the new weights to the cord.

Mortise and Tenon joints can be used to join older wood windows. The wood pegs that keep the parts together can be removed using a pin punch and hammer. The majority of them are large on one side, but smaller on the other. It is crucial to first remove the smaller diameter sides. Sashes that were made later in the century utilized glue instead of pegs. They can be separated by cutting the glue line using an instrument, and then tapping the mortised part loose using mallets.

After the sash has been removed, you can remove the sash stop and access the weight pocket. Usually it is done by drilling an opening in the bottom of each jamb. This hole is covered with an unfinished wooden panel that can be removed to reveal the inside workings.

After you have the sash stopped and the access panel removed, you'll be able to take off the old sash weight and replace it with new. First, weigh the sash, as the weights you have may not be of the right size. After the new weight is installed then tie a string to it and then thread it through the pulley for the sash. Then, you can attach the string to the boxed frame. Leave a few inches protruding at the end of the string for future adjustments.

Sash Cords

Most old double-hung windows include a chain or cord attached to the weights which supports and keeps the sashes level within the jamb. Over time, these cords could break, making it difficult to raise the window. A new sash cable can restore the ability to raise and lower the sash and ensure it stays in place when opened.

To replace sash cords the first step is to remove the access panels from the jambs. They are typically nailed or screwed in and must be removed or moved. It may be possible to take them out using an axe or hammer, however, it is best to lay out dust sheets before beginning any work.

After removing the access panel, you can begin working on the sash. Prise the narrow parting beads (also called "tie rails") out of their grooves with a chisel or flat bar. It is important to take your time, as these are often stuck or nailed to the floor. If the sash is still in place, break the mortise and tenon joints using a hammer and pin punch or screwdriver, then unhook the wood pegs attached to each piece. It should now be possible to move the sash around freely, though it may require oiling if it seems stiff.

Determine the length of sash chain/sash cord required to reach the sash slot at the bottom of the pulley on the top of the jamb. Cut the chain or cord and fix it as described in the previous step. You can either employ a hammer, nail or screws, but nails are less likely to cause damage.

If you don't have an item that replaces the old counterbalance system, it's recommended to keep the original weights for balancing in place. It's not too expensive to purchase them from a salvage store and they'll be simple to install once you have the sash opened. Depending on the size and shape of your window, you might need to install one or two sashweights in order to keep the sash open.