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Window Sash Repairs

Most homeowners don't think much about window sashes -- as long as they are closed, open, and keep the outside air out and the air inside in. But over time, they'll start to wear out, causing drafts, air leaks or even sticking sashes.

With a sash propped on a DIY easel The artist works the glazing points into gaps. He also scrapes paint off the frame and applies a wood preserver.

Sash Weights

If your windows are not closing and opening smoothly, or are stuck, a faulty counterbalancing system could be at fault. This can be caused by an ailing or damaged sash chain or a loose or misaligned sashweight, or a broken or cracked pulley.

The sashweights are small boxes made of cast-iron that balance the counter-weight system and support the sash. They are located in the bottom rails of each window frame, and are covered by a wooden access panel that can be cut open to reveal their position. The panels can also be removed to gain access to the sash weight pockets to clean, repair or replacement.

If you've used sash windows for a period of time, it's likely that you have a problem with the weights on the sash that cause them to sag or catch. The weights could be too heavy (they should be a bit heavier than the top sash), or installed incorrectly.

To correct this issue, first take off the stops (the trim along the inner edges of the window where it joins the frame and holds it in the frame) and then set them aside. You'll need to do this gently so as not to harm the profile of the meeting rails. Then, you can employ a mallet or hammer to break the stiles from the rails and check the rails for damage or any repairs that must be done.

After examining the stiles and rails of the sash, put some dust sheets on the floor and begin working. Start by taking the wood pegs out of the mortise and tenon joints using pin punches and a screwdriver or hammer. After you have removed the pegs you can start disassembling the sash. Remove the sash stop moldings and any sash cords still attached.

The next step is to weigh the sash in order to determine the amount of weight it needs for proper functioning. You can find old replacement sash weights online or at some home improvement stores, but you should be sure to purchase the right size to ensure not to over or under weight the sash.

Sash Cords

Sash cords that are worn out or damaged can cause problems with sash windows. Sash cords are constantly under pressure from the weights which can cause them break over time, particularly if they're not properly maintained. The sashes won't be able to open or close as easily when the cords break. The issue could be caused by a variety of reasons like excessive force, aging, lack of maintenance, and the accumulation of moisture. During window sash repairs, it's important to replace the old cords with new ones that are made from materials that last and resist moisture.

Begin by removing the inner stop strips, the thin wood strips that hold the sashes in place with a utility knife and a chisel. Remove the stops from the sashes with care and keep an eye out for any broken or cracked ones. After removing the stops, you can gain access to the weights on the sash by opening the jamb or taking out the weight pocket.

Accessing the sash cords requires some extra effort, but it's not difficult with the right tools and perseverance. Remove the old cords first by cutting them at their knots and then pulling them out. Remove the sash and place it aside. Remove the staff bead. This is the nail that keeps the sash in place. Install the nail about a foot into the hole. This will stop the sash from falling while you finish stringing the counterweights.

After reinstalling the upper sash, reattach the sash cords and ensure that the sashes are balanced and move smoothly. Then, reinstall the lower sash and repeat the process, making sure that the sashes are properly sitting and moving smoothly.

After you've installed the counterweights, reconnect the sash cords by placing an sash cord into the pulleys and then threading the cord's other end through a knot hole in the sash, ensuring it is secured in the correct position. Repeat this procedure on both sides of the sash, making sure that the sashes work as intended again.

Drafts and air leaks

Over time, the materials that connect your sash style double glazed windows window to the frame of your house begin to deteriorate. This causes drafts and energy loss. A thorough inspection will identify the problem areas and help you determine your window sash repairs options. Your preferences regarding comfort and ability level determine whether you are able to handle window repair or require expert assistance. Historical property status and structural integrity concerns impact the scope of work that is required.

If cold air is able to enter through a drafty window your furnace must work overtime to keep your house warm. This can result in higher heating bills, and can reduce the effectiveness of your HVAC system. Additionally, drafts can disrupt your indoor comfort and can degrade the quality of your indoor air by bringing the infiltration of outdoor pollutants, allergens, and humidity.

A typical indication of a drafty window is the sensation of cold air circulating through your home regardless of windows and doors being shut. Other signs to be aware of are a change in temperature near the window, and condensation on the frame or sill.

Fortunately, fixing drafty windows is a relatively simple job that can lower your energy bills and improve the comfort of your home. The first step is to look at the window's exterior. Look for bare wood and areas where the caulking has cracked, exposing the air gap.

Examine the sash's interface with the frame, including the parting bead and staff bead. Check the condition of the weather stripping (felt strips or foam tape) at these locations to determine if it's still intact and effective. If not, it's time to be replaced.

Take a look at the condition of the glazing putty. This is a hard putty used to keep panes of tempered glass in place. Check for cracks and crumbling that could expose the sash's exterior to moisture. This can lead to problems with mold and damage to the glass.

Apply a fresh layer glazing putty to the inside of the window to correct the problem. To secure the glazing points make use of a flat-bladed screwdriver push them into place. Wrap a piece or fabric and then foam around each point. This acts as an insulation against cold air.

Aesthetics

Window sash repairs can give old windows a new look with less expense than a complete window replacement. A complete replacement of windows can be costly and time-consuming task, especially for older homes. Repairing window sashes is an excellent way to bring back the original beauty of a home and value.

Be vigilant about the condition of windows sashes is crucial to avoid major issues. It is best to consult a professional if you are not sure if your windows require repair. The cost of repairing a sash is often much lower than the expense to replace the entire window, and can reduce your energy bills as well.

The first step is to lower the upper sash to the bottom. This is generally simple and allows you to see the "parting beads" that are a grooved part on the rails that keep the two sliding sashes separate. These can be removed with the help of a small pry-bar or a putty-knife. They are usually fixed in place and painted, so you need to be careful not to harm them or the sliding sash.

After removing the parting beads you'll have to remove the pockets. They are pieces of wood within the frame, low down which allow access to the weights for the sash and are typically nailed in place - they could also be glued with paint, so you have be extra cautious. After the nails have been removed then you can move the sash up and down in order to make sure it moves easily.

If it does not, there could be an issue with the counterweights or the sash window renovation cords. After you've inspected all of these, you can repair them if needed.

Wooden windows have a natural look that blends seamlessly with modern and traditional style interiors. The options for staining or painting are endless. However, wooden windows do require regular maintenance to avoid damage and rot.