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10 Websites To Help You Become An Expert In Sash Window Repair
Sash Window Repair

Regular maintenance is essential for sash windows with weights that are not new. This includes cleaning and lubricating hardware, replacing ropes and adding brush pile strips to reduce drafts and rattling.

Make use of a utility knife to cut through any paint that is securing the window facing. Then, remove the window face and trim it to expose the sash.

Cracked Sash or Frame

If you notice that your windows' sash aren't moving up and down as smoothly It could be the time to fix them. It is crucial to fix the sash that is cracked as quickly as you can. This will stop draughts or condensation. Sash windows of old are usually worn down over time. However they can be restored to their former glory by taking a few simple steps.

Examine the window and frame for indications of damage, for example rot or mold. If you find any of these problems, sand the area and then repaint it to match the frame. Alternatively, you can replace the entire window, which is usually the best option when the sash that was previously used is in poor condition.

If the sash is hanging or sagging in particular places it can be released by closing and opening it several times. This should help loosen any paint that's stuck and should free the sash. If the sash is still stuck after a few attempts using a hairdryer, use low heat to warm the sash, and then molding to soften the putty. Once the sash is unbound then use a knife or, if you prefer, a tool that appears like a metal spatula with serrated edges called a window saw (available at hardware and paint stores for around $10).

The next step is to separate the glass from the sashes. If you're lucky, the strip will be secured with just two screws or nails along the length of the molding. If not, remove the strip that is parting with the chisel. Start at the sill.

Once you've removed the parting strip, it's important to reinstall it properly. If you're fortunate the groove will be sufficient to allow a fresh strip of wood to slide in and be secured with a few nails. If the groove is too narrow, you'll need to sand it down and create a strip of the proper width.

Sash or Frame Stuck

If a sash-window opens and closes without difficulty, but gets stuck at the point where it stops functioning, the sash or frame might require re-gluing. As time passes, the glue begins to degrade, and cycles of expansion and contraction take place due to fluctuations in humidity, or rot may begin to develop. Re-gluing these joints is a simple task that can be done without dismantling the window.

Examine the frame thoroughly before you begin to re-glue joints. Check that all seams are intact and free of cracking or leaking. If the wood is rotting, it must be removed and chemically stripped. After repairs are complete, the wood should be sanded before applying the stain again.

If the sash appears be stuck at the bottom, start looking for a snapped sash cable. If there's a broken cord, it may have become twisted within the frame and gotten stuck. This will cause the window to feel heavier when opening and closing. To correct this issue cut the cord close to the sash (a friend can assist you) and pull the cord down to let it out.

Then you can use a scraper to take any paint that remains from the sash and frame. This should be done with care to avoid damaging the glass or mortise and tenon joints. Once the majority of the paint has gone, apply a wood hardener to the frame and sash. This product will re-strengthen the wood and protect it from further decay.

If you spot a gap where the sash is affixed to the frame, insert a wide knife (not a screwdriver) into the gap and then work it up and down one side before moving to the other. You may need to tap the handle using a hammer to move it.

Alternately, you can put a block of wood in the channel just below or above the sash. Tap this with an hammer to push the sash into a wide opening. If you're above a path, make sure that nobody is walking underneath the window.

Leaking Sash Frame

If water leaks around a window, it's not just annoying and uninspiring, but it can cause serious damage to the surrounding structure and also encourage the growth of dangerous mold. The good part is that a leaky window usually can be repaired without having to replace the window itself, if you know what to look for.

Check for damp wood in the frame, sash or the exterior wall next to the window. Pay attention to the corners. If you see water stains, moisture in the ceiling or wall near the window, or decaying wood in the sill it's time for a professional. If the moisture seems to be coming from outside, the problem is likely caused by a clogged drainage hole or flashing that has been installed improperly or not installed at all.

Leaks that occur on the interior of a double pane window could result from a failure of the gasket which seals between the two glass panes. It is crucial to check the integrity regularly of the seal on a window that has a gasket between the two panes. A simple tool, which looks like a large pencil or pen with a pointed end, can be used to test the seal. Push the end of the tool between the frame and the window to determine if it's tight or loose.

Vinyl frames are susceptible to air infiltration around windows because the PVC expands and contract at seven times the rate than glass. This movement can put stress on and shear glazing sealants which allows air to pass between the frame and sash. This can be fixed in some instances by resealing using silicone caulk or expanding foam tape.

If you have awning or casement windows, make sure to inspect their hinges to ensure that they are in good condition and not leaky. If you see bare wood around the edges of the window frame or the sash interior, it's crucial to use a latex sealant to prevent air from entering.

Damaged Sash and Frame

A damaged frame or sash is a sign that it's time for repairs. This usually involves replacing the damaged piece with a new piece. A carpenter who has experience in repairing sash windows is able to accomplish this without the need to replace the entire window. They can also incorporate modern features, such as double glazing and sound-reducing glass.


These repairs are often able to help the window perform better and last for longer. Wooden sash window frames will expand and contract as a result of changes in humidity. A tight seal on the window is crucial to ensure that it functions correctly.

One of the most frequent indications that your sash windows need a repair is that they are difficult to open and close. Sash windows are designed to open and closed with very little effort, so if the windows are stiff or require lots of force to move, this is an indication that the window isn't seated properly in the frame.

This can be caused by a variety of reasons, including poor installation and aging. Check that the sash has been seated correctly by looking from the outside and then poking it with your finger. If the wood feels brittle or has holes, it's most likely rotting and will need to be replaced.

If the sash appears to be in good condition, it is likely that the pocket is stuck. The sash pockets are usually comfortable to wear, but in time, they can be closed with paint or pinned in place by screws or nails. You can make use of a sharp knife to cut along any joints in the paint, and gently pry the pocket out.

After the sash has been removed, remove the sash cords and lower the weights (if necessary). Then take the sash horns back and the parting beads, as well as the cords and pulleys for the sash. Use windows repair for decoration around the staff bead, the container and sash pulleys to seal and minimize the risk of draughts.

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