5 Window Sash Repairs Lessons From The Pros

Window Sash Repairs

Window sashes must be checked regularly for mold, mildew and other damage. If you catch these issues early, you can save money on future repairs.

The sash is an interior frame that moves up and down vertically in windows that open. This article will teach you how to carry out a few simple repairs to the sash.

Weather Stripping

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

The first step to sash window repairs is addressing weather stripping. It's found on both the sash and frame. If it's loose or worn out, it can cause drafts, as well as other issues. Start by identifying the brand of window and the glass manufacturer's date (etched on the corner of the glass or the aluminum spacers between panes). Then, remove the sash and mark its height and width, so you can find the appropriate weather stripping replacement to match.

Then, take it off and set it on a table so that you can reach all four sides. If the sash is double-hung, take out the weights with their ropes that should fall into the pocket in the jamb lining. After removing the sash with the utility knife, take off the weather stripping from the old sash by hand or with the putty blade.

After the sash has been cleared, you can replace parting stops. These are long pieces that divide 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 cutting them to the desired length then apply a thin layer of glazing compound to the bottom of the sash. Smooth the compound with your putty tool and let it dry for at least one day. After the putty has completely cure and dried, you can apply a topcoat of acrylic latex. This will help protect the putty, and give your sash a modern appearance.

Sash Hardware

The hardware that supports window sashes is prone to wearing out from time and usage and the result could be a door or window that isn't able to open or close easily. The good news is that fixing and replacing this hardware is usually relatively easy and affordable. If you're having trouble opening the sash, spray some grease into the jamb channel. Then slide the sash open to see if this resolves the problem. If not, the problem is likely with the sash balance, and you'll need to take out the sash 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 glazed. This can be due to various reasons that include a lack of maintenance and an unmatched weight rating.

If the hinge arms of a upvc window repair are starting to lose their elasticity, this could cause the sash's to drag and eventually hit the frame in the corner directly opposite the hinge arm (Photo 1). To fix the problem make sure the sash is in the proper position within the frame's opening and remove it. If the sash is secured to the hinge arm, you'll need to loosen the hinge arm and replace it (Photo 2). Install the new sash (Photo 3).

Old windows, particularly those in older houses, can be difficult to open and close due to sagging hinges and general lack of energy efficiency. In many instances, a few easy repairs can turn these windows into smooth operators for the first time and save the homeowner cash on energy costs.

In order to make these repairs to the sash it is essential to have all of the necessary tools in place before you begin. Begin by marking the location of the hinge channel on the frame with pencil (Photo 1). This will allow you to position the channel in the right location after you've completed. Remove the sash, and then remove the hardware including the parting beads (Photo 2) and the cords or chains that secure it. Soften any putty that has been hardened with the help of a heat gun set at medium and equipped with an shield for the nozzle. Remove the old sash, and place it in a bag that is labeled.

Sash Weights

Whether your window sash repairs are to replace a broken cord or to keep the windows functional by replacing worn out weights for sash will improve its operation and cut down on the energy cost. Sash weights consist of iron or lead cylinders that are enclosed in a concealed cavity and are connected via ropes to the moveable window sash. They are counterbalancers that allows the window to be opened and closed without using mechanical or electrical devices. The sash-weights are typically neglected or ignored by homeowners, and are turned into scrap when they fail; therefore you might need to search for replacements.

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

Older windows made of wood are joined using mortise and tenon joints. Pin punch and hammer can be used to remove the wood pegs that hold the components together. Most of them have an enormous diameter on one side and a smaller one on the other, which is why it is crucial to take out the smaller-diameter ones first. Later sashes made use of glue instead of pins. They can be cut by using a knife and mallets.

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

When the sash has been shut off and the access panel is removed, you are able to remove the weight you used and replace it. Make sure you weigh the sash prior to you do this, since the weights that were previously used may be a different size than the one you need. Once the new weight is installed, you can thread the string through the sash pulling mechanism. Then, attach the string to your boxed frame. Leave a few inches of space at the end of the string to allow future adjustments.

Sash Cords

In the majority of double-hung windows the chain or cord is affixed to the weights. This supports and keeps the sashes in the jamb level. Over time, these chains can get damaged and make it impossible to raise windows. A new sash cable can restore the ability to raise and lower the sash and keep it in place when opened.

The first step in replacing sash cords is to locate and remove the access panels within the jambs. They are usually nailed or screwed in and will require to be removed or relocated. It is possible to remove them using an axe or hammer, however, it is best to lay out dust sheets before starting any work.

Once the access panel is removed, you can begin working on the sash. Take the narrow beads (also called "tie rails") out of their grooves using the chisel or flat bar. It is essential to take your time because they are usually wedged or nailed in place. If the sash remains in place, remove the mortise and tenon joints with the help of a hammer and pin or screwdriver, then remove the wood pegs that are on the components. The sash should be able to move freely now, but it may need some lubrication to feel less stiff.

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

Unless you've bought an item that replaces the old counterbalance system, it's recommended to keep the original balancing weights in place. It's not too expensive to purchase them from architectural salvage stores and they'll be easy to install once you have the sash opened. Depending on the size of your window one or two sashweights could be needed to keep the sash in an open position.