Window Sash Repairs

Make sure to check the sashes of your windows regularly for any damage, mildew and mold. You can save future repair costs by catching these issues early before they become too much.

The sash is the internal frame that is vertically moved up or down in windows that open. This article will demonstrate how to carry out a few simple sash repair.

Weather Stripping

Wood window sashes add an elegant look to your home and, when properly maintained, they can last for a long time. They can, however, 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 beauty longer than replacement windows.

The first step in sash window repairs is addressing weather stripping. It's found on both the sash as well as the frame. If it's damaged or worn out, it can cause drafts and other problems. To fix it, start by determining the brand of your window and the date on which the glass was manufactured (etched in the corner of the glass or on the aluminum spacer between panes). Then, take the sash off and mark its height and width to find new weather stripping that matches.

Then, you can remove the sash from its holder, and place it on a flat surface to allow you to reach all four sides. If the sash is double-hung, remove the ropes and weights that should fall into the pocket inside the jamb lining. After removing the sash using the utility knife, remove the weather stripping that was left by hand or using a putty blade.

After the sash has been cleared and clean, you can put in the parting stops. These are long pieces that separate 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 use scrap wood.

After removing the stopper for the parting and cutting it to length, apply a thin coat of glazing compound to the bottom of the sash. Smooth the compound with your putty tool, and allow it to dry for at least a day. Once the putty has fully dried it is possible to apply an acrylic latex topcoat. This will protect the putty and give your sash a fresh appearance.

Sash Hardware

The hardware that supports window sashes susceptible to wear and tear from the wear and tear of use and the result could be a window or door that won't open or close easily. The good news is that repairing and replacing this hardware is generally very simple and cost-effective. If you're having difficulty opening the sash, spray some lubricant into the jamb channel. Then slide the sash out to see if this resolves the problem. If not, the problem is most likely due to the sash balance, and you'll need to take out the sash to gain access to the hardware.

Ideally, window sashes should move open and shut without effort, but this can be an issue when the weights are worn or if the sash meeting rail isn't properly glazed. This issue could be caused by a variety of factors such as the lack of maintenance or an unmatched weight rating.

If the hinges on windows begin to slide, this can cause the sash drag and eventually hit against the frame at the opposite corner (Photo 1). To fix the problem ensure that the sash is centered in the frame's opening and take it off. If the sash is fixed to the hinge arm, unbolt the hinge and replace it. (Photo 2). Install the new sash next (Photo 3).

Due to hinges that are sagging, and a general lack in energy efficiency, older windows, especially those in older homes, may be difficult to open or close. Many times it is a matter of making a few minor window repairs adjustments that can help these windows function smoothly once more and help homeowners save money on their energy bills.

It is crucial to have the tools you require before you begin. Mark the location of the hinge channel on the frame (Photo 1) with pencil. This will allow you to position the channel in the correct location after you've completed. Take the sash off and take out all the hardware, including the parting beads cords, chains, and cords that keep the sash in place. Soften any putty that has been hardened with the help of a heat gun set at medium and equipped with a shield to block the nozzle. Remove the old sash and put it in a labeled bag.

Sash Weights

If your window sash repairs are to replace a damaged cord or just to ensure that the windows are functional by replacing worn out sash weights will improve sash operation and help reduce energy costs. Sash weights consist of heavy iron or lead cylinders that are enclosed in a concealed cavity and connected by a rope to the movable window repairs sash. They are counterbalancers, allowing the window to be opened and closed without using mechanical or electrical devices. When they fail, sashweights tend to be left unnoticed or disabled by homeowners.

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

Mortise and Tenon joints can be used to join old wood windows. The wood pegs that keep the components together can be removed by a pin punch and hammer. The majority of these pegs are big on one side and smaller on the other. It is crucial to first remove the smaller diameter sides. Sashes that were made later in the century made use of glue instead of pegs and can be separated by cutting the glue line using an instrument, and then tapping the mortised section loose with a mallet.

After the sash is removed then you can take out the sash stop and gain access to the weight pocket. This is usually done via a small hole at the bottom of every jamb. This hole is 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 is removed, you are able to remove the weight that was previously installed and replace it. Be sure to weigh the sash first because the weights you have might not be of the right size. After the new weight has been installed, run the string through the sash pulling mechanism. Then, you can nail the string to the frame, but only leave a few inches of string protruding from the head for future adjustment.

Sash Cords

In most old double-hung window, a cord or chain is affixed to the weights. This helps keep the sashes of the jamb balanced. Over time, these chains can become damaged and render it impossible to raise windows. A new sash cord will give you the ability to move the sash upwards and downwards and keep it in place when opened.

The first step to replace sash cords is to locate and remove the access panels in the jambs. They are typically screwed or nailed in and require removal. It is possible to take them out using an axe or hammer, but it is always better to lay out dust sheets prior to beginning any work.

After removing the access panel, you can begin to work on the sash. Take the narrow beads (also known as "tie rails") out of their grooves using a chisel or flat bar. It's important to be patient, as these are often placed in a wedge or nail. If the sash is still in place, remove the mortise and the tenon joints by using the help of a hammer and pin or screwdriver, then unhook the wood pegs attached to each component. It should now be possible to move the sash back and forth freely, although it might require oiling if it seems stiff.

Take a measurement of the length of sash cord/chain needed to reach the sash slot at the bottom from the pulley on the top of the jamb. Cut the cord or chain and secure it in the previous step. You can employ a hammer, nail or screws, but nails are less likely to cause damage.

Unless you've bought an upgrade kit to replace the counterbalance system that was in place before, it is recommended to keep the original balancing weights in place. They are not expensive and easy to install if you purchase them from architectural salvage stores. Based on the size and shape of your window repair you may require one or two sashweights to keep the sash open.