Window Sash Repairs

Regularly inspect the window sashes for any damage, mildew and mold. By catching these problems early you will save money on repairs in the future.

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

Weather Stripping

Wooden window sashes are a great way to add an elegant look to your home. They are also sturdy and can last many years when they are maintained properly. However, they can become damaged or degraded as time passes due to exposure to elements and normal wear and tear. Thankfully, sash repair experts can restore your windows back to their original condition and keep them looking great for much longer than newer replacement windows.

The first step for sash window repairs is addressing weather stripping. It's found on both the sash as well as the frame. It can cause drafts if damaged or is loose. To fix it, start by finding your window brand and glass manufacturer date (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 that you can purchase replacement weather stripping that matches.

Then, take the sash from its holder and place it on an even surface that allows you to reach all four sides. If the sash is double glazing near me-hung, you must remove the weights using their ropes that should have fallen into the pocket within the jamb lining. After removing the sash with the utility knife, remove the old weather stripping by hand or with the putty blade.

Once the sash is clear it is time to replace the parting stops. These are long pieces wood that separate the two sashes. Pam prefers standard 1/2-inch by 3/4-inch window trimmings from the lumberyard. But, you can also substitute with a scrap piece of wood.

After removing the stopper for the parting and trimming it to length after which, apply a thin layer of glazing compound on the bottom of the sash. Smooth the compound with your putty knife, then let it dry for a minimum of a day. Once the putty has fully cured, you can apply an acrylic latex topcoat. This will protect the putty and give your sash an updated appearance.

Sash Hardware

The hardware that supports the window sashes can wear out with time and use. This can result in the window or door that is difficult to open or close. The good news is that repairing and replacing this hardware is typically relatively easy and affordable. If you're having difficulty opening the sash, spray some lubricant into the jamb channel. Then, slide the sash open to see if this resolves the problem. If not, the problem is most likely due to the sash balance and you'll need to remove the sash to gain access to the hardware.

Window sashes should be able to open and close with minimal effort. However, this could be a challenge if the weights have been worn out or the sash connecting rail isn't properly covered with. This problem can be due to a variety of factors, including an absence of maintenance or an unmatched weight rating.

If the hinge arms of a window are starting to sag, this can cause the sash to slide and eventually strike the frame in the corner opposite the hinge arm (Photo 1). To correct the issue ensure that the sash is in the proper position within the frame opening, and then remove it. If the sash has been screwed to the hinge arm, you'll need to unscrew the hinge arm and replace it (Photo 2). Install the new sash next (Photo 3).

Due to sagging hinges, and a general deficiency in energy efficiency, window repairs windows that are old especially in older houses, could be difficult to open or close. In many cases, a few simple repairs can transform these windows into smooth operators for the first time and save the homeowner cash on energy costs.

It is important to have the tools you need before you start. Mark the hinge channel location on the frame (Photo 1) with a pencil. This will make it easier to position the channel in the proper position after you've finished. Remove the sash and take out all the hardware including the parting beads cords, chains, and cords that help to hold the sash. A hot gun with nozzle shield and a medium setting can soften any putty that has been hardened. Remove the old sash and store it in a labeled bag.

Sash Weights

Sash weights can be changed to improve the performance of your window sash, and also reduce the cost of energy. Sash weights consist of iron or lead cylinders that are encased inside a concealed cavity, and attached 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 often ignored or discarded by homeowners and turned into scrap when they fail. Consequently, you may need to find replacements.

A sash weight that has fallen out of the cavity is difficult to recover It is therefore important to find a new one that fits correctly. You will also need an additional piece of string, a length of sash cord and some sash pulleys to connect the new sash weights the sash cord.

Older windows made of wood are joined with 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 have large diameters on one side and a smaller one on the other, so it is important to remove the smaller-diameter sides first. Sashes made later in the century made use of glue instead of pegs and can be separated by cutting the glue line with the help of a knife, and then tapping the mortised section loose with mallets.

Once the sash has been removed, you can take off the sash stops and access the pockets for weights. Usually it is done by drilling a hole near the bottom of each jamb. The hole is surrounded by an unfinished wooden panel that can be removed to reveal the interior workings.

When the sash has been shut off and the access panel has been removed, you can take off the weight you used and replace it. Be sure to weigh the sash before you do this, since the old weights could be different in size from the one you need. After the new weight is installed you can tie a string around it and thread it through the pulley of the sash. Then, you can attach the string to the boxed frame. Leave a few inches of space at the top of the string for future adjustments.

Sash Cords

Most double-hung windows of the past include a chain or cord attached to the weights that keeps the sashes in balance within the jamb. Over time, these cords can become damaged and make it impossible to raise windows. A new sash cable can restore the ability to move and lower the sash and keep it in place when opened.

The first step in replacing cords for sash is to locate and take out the access panels located in the jambs. These are usually nailed or screwed in and must be removed or relocated. You may be able to use a hammer and chisel to remove them but it's best to lay down dust sheets prior to commencing any work.

After the access panel has been removed, you can start working on the sash. Prise the narrow parting beads (also called "tie rails") out of their grooves using flat bar or chisel. It is important to take your time, as these are often wedged or nailed in place. If the sash is still in place, remove the mortise and tenon joints with a hammer and pin punch or screwdriver, then remove the wood pegs on each piece. You should now be able to move the sash around without difficulty, though it will probably need some lubrication if it feels stiff.

Measure the length of sash cord/chain required to reach the sash slot at the bottom from the pulley at the top of the jamb. Cut the cord/chain and then fix it as described in Step 6 above. You can do this with a hammer, nails or screws. However, nails are less likely to cause damage.

It is best to keep the weights that came with the original counterbalance unless you've purchased a kit that will replace the counterbalance that was previously installed. It's not expensive to buy them from architectural salvage stores and they will be easy to install once you've got the sash open. Depending on the dimensions and shape of your window you might need to install one or two sashweights to keep the sash open.