This Is The Ultimate Guide To Sash Window Repair
Sash Window Repair
Sash windows could be out of balance or break. Pam searches the web for salvaged wavy glasses, and keep an eye out for discarded sashweights made of metal. She then seeks replacements, such as nuts or washers, to help balance her window.
Pam covers each pan with a rope of glazing compound she uses to create the rabbet groove, or pocket, around the opening. This helps to reduce drafts and costly heat loss.
Sashes that stick Sashes
If your double-hung window becomes stuck and shatters, it's a nightmare. You'll lose sight in the event that they shake during a storm. A window that's too loose may allow air and noise in, which will increase your energy costs. Both of these scenarios are not ideal however they can be rectified with the right tools and perseverance.
Paint can accumulate on the channels of old weighted sash window tracks, which can cause them to become jammed. Most of these problems can be solved by cleaning and oiling the tracks.
Start by removing the caulking that was between the window stop (the one inside) and the window frame. Then scrape off any accumulated paint. Make use of a sharp knife, and place plastic sheets and an air-collecting vacuum cleaner beneath the surface to collect any paint dust or chips.
You can then clean the tracks using a dry cloth, then apply an oil based on silicone to aid in their smoother movement. It is available at most home improvement stores, or on the internet. You can test it by moving the sash either upwards or downwards.
If it is still jamming it could be an issue with the sash cord. Verify if the cord is caught or hanging up in the sash, or if it has snapped completely. If this is the situation, you'll need to reconnect the window.
A pin that holds the rail in place might have been ripped out. It isn't easy to fix and you'll have to call an expert most times.
If a pin hasn't fallen out, but the wood has gotten warped or swollen, it's recommended to use a wood softener on it. The liquid is quick drying and can help restore damaged wood. It's not necessary to remove the windows on your sash to repair them. After using it, you can take the two sashes apart by placing a piece of wood in the bottom corner of the window where they meet.
Draughts
Draughts are a major problem for old sash windows, especially in the winter months. They can be caused by decayed wood, cracked putty or worn cords for sash. This can allow cold air to get inside the window, making it more difficult to warm your home. You can prevent draughts by filling gaps with expanding foam or by using draught-proof strips that are that are available in most hardware stores. These are effective, although they will need to be replaced from time to time as the foam expands and gets worn away with use.
Gapseal is a more permanent solution. It's a spongy, rubbbery seal you can cut and push into the gaps between the sash window frames. It can be applied by itself or with adhesive strips placed on the top and bottom of the frame. This is costly and you'll have to apply it again throughout the life of your window. But, it's an affordable fix that is simple to remove.
Cling film can also be used to block drafts. Simply roll it up and then push it into the gaps around your window. This is a reliable draught stopper, but the drawback is that it can hinder sash movement completely and pose a fire hazard. The sash has to be removed to open the window and the clingfilm needs to be to be reapplied each time the sash is closed.
A more cost-effective solution is to have your window sash professionally draughtproofed as part of a general refurbishment service. This may include the fitting of new sash strings, parting beads and staff beads in addition to the lubrication and rebalancing the weights and the fluidization and rebalancing of the pulley wheel. It may also include staining or painting of the frames and sashes. This could restore the sash to its original function and improve its energy efficiency and correct any minor flaws in the wood. It is much less disruptive than replacing windows entirely and can significantly reduce draughts and improve the thermal efficiency of your home.
Decay
The good thing is that your sash window frames are not beyond repair if they have been damaged or decayed. The frames of these windows are usually constructed from high-quality timber. If you can restore them properly they can be repaired to provide high performance for many more years. The key is to conduct regular inspections and making sure that the wood is properly ventilated to avoid moisture accumulation, which can cause wood to rot.
Most of the problems you'll encounter with sash windows will be easily visible on a close examination, however certain issues are more difficult to identify. Particularly, decay of wood is a difficult problem to treat because fungus eats away at the wood. Although it is possible to repair damaged timber however the best method to avoid future rot is by keeping the timber dry.
First, take off any paint from the hardware. The bottom rail and the meeting rail could require removal from the frame (depending on the location of your sash). You'll then have to take off the "pocket covers" that are pieces of wood that are located on the sides of the frame low down that allow access to the weights (the parting beads run through the middle of them). These are often put in place by nails and then covered with paint, so you will probably need to use an instrument to break them loose. Once the pockets are removed you can begin to remove any wood that is rotting, and then apply a high-quality water-resistant wood filler. After the filler has dried, a primer coat should be applied to stop further decay.

It is a smart idea to examine inside the window the sashweights to ensure they are properly balanced. They shouldn't be misaligned or pulled one side more strongly than the other. The sash may slide off the track if they are not properly balanced. This could cause the frame to fall or be damaged. You can replace the sashweights using new ones, or install an updated balancing system to stop the sash from swinging in the wrong way.
Poor Security
Sash windows are vulnerable to wear and damage from the weather over time. This can lead to decay of the timber, which will require replacement. Wood decay can be spotted by water marks on the window, or the frame turning soft to the touch. It is crucial to speak with an expert to assess the situation and determine if repairs to the sash window are required.
Similarly, over time the rails at the bottom may become damaged. The sill may show water marks or a window that is soft to the touch may be a sign of this. A professional will be needed to evaluate the situation and recommend any necessary resealing of sash windows components or replacement.
Triple and double glazed Sash windows do a fantastic job of keeping noise pollution from entering your home, and it could be a real cause for concern when they start to let it back in. If this is happening, the structural integrity of windows' sash could be in danger and is likely to need to be replaced by a different option.
A common sash
window repair problem is the sash becoming stuck in the frame. It could be due to the cord snapping or problems with sash the ratchets. If it's the latter the gentle persuasion is usually enough to get the window open to reopen. Alternatively, the ratchets need to be reset.
Removal of the sash from the frame and removing the tracks of any dust or dirt can often help resolve this problem. After cleaning the tracks, remove any security fittings and then remove the chains or cords that hold the sash. The staff bead can be sealed using a draught-proof seal that will reduce the possibility of draughts. This can also improve the finish of paint. The gap between the box and sash can be filled with decorators caulk in order to improve sash operation and reduce the risk of draughts.