Window Sash Repairs
Window sashes must be inspected regularly for signs of mold, mildew and damage. By catching problems before they become serious you will save money on repairs in the future.
The sash is an internal frame that moves up and down vertically in windows that open. double glazing repairs Marlow will demonstrate how to do a variety of simple repairs to the sash.
Weather Stripping
Wood window sashes add an elegant look to your home. When properly maintained, they will last for many years. However, they can become damaged or degraded as time passes due to exposure to elements and wear and wear and tear. Sash repair specialists can restore windows to their original condition and maintain their appearance longer than replacement windows.
The first step to repair sash windows is to address weather stripping, which is found on both the sash as well as the frame. If it's damaged or worn out, it could cause drafts and other issues. Start by identifying the window's brand and the manufacturer's date (etched on the glass's corner or on the aluminum spacers between panes). Take the sash off and mark its width and height so you can purchase new weather stripping that is compatible with the original.
Then, remove the sash from the holder and place it on an even surface that allows you to reach all four sides. If your sash has a double-hung, you'll need to remove the weights as well as the ropes that go with them, which should have fallen into the pocket of the jamb liner. After you have removed the sash using the utility knife, remove the weather stripping from the old sash by hand or with a putty blade.
After the sash has been cleared it is time to replace the parting stops. These are long pieces that split the sashes. Pam prefers the standard 1/2-inch by 3/4-inch window trimming from the lumberyard. However, you can also use with a scrap piece of wood.
After removing the parting stops and trimming them to the desired length then apply a thin layer of glazing compound on the bottom of the sash. Smooth out the compound using your putty knife and let it dry for a minimum of a day. When it's completely dried then apply a top coat of acrylic latex paint. This will help protect the putty and give your sash a modern look.
Sash Hardware
The hardware that holds the windows sashes can become worn out over time and with use. This could lead to the window or door that is difficult to open or close. The good news is that fixing and replacing this hardware is generally very simple and cost-effective. If you're having trouble opening a sash, spray some lubricant into the jamb channel. Then, slide the sash out to see if that fixes the issue. If the issue continues it's likely to be due to the sash's balance. You'll need to remove the window sash in order to get access to this part of the hardware.
Sashes for windows should be able to open and close without much effort. However, this could be difficult if weights are worn out or the sash meeting rail is not properly covered with. This problem can be caused by a number of reasons, such as the lack of maintenance or the wrong weight rating for the particular window sash.
If the hinge arms of a window are beginning to sag, this can cause the sash's to drag and eventually land on the frame in the corner that's in the opposite direction of the hinge arm (Photo 1). To correct the issue make sure the sash is in the proper position within the frame's opening and remove it. If the sash has been attached to the hinge arm, remove the hinge and replace it. (Photo 2). Install the new sash next (Photo 3).
Old windows, particularly those in older houses, can be difficult to close and open due to sagging hinges and a general lack of energy efficiency. In most cases, a few simple repairs can turn these windows into smooth operation for the first time and save the homeowner money on energy costs.
It is essential to have the tools needed before you begin. Start by marking the location of the hinge channel on the frame using pencil (Photo 1). This will help you to place the channel in the right place when you are finished. Remove the sash, and then remove the hardware including the parting beads (Photo 2) and the chains or cords that hold it in place. The nozzle shield of the heat gun and a medium setting will soften any hardened putty. Remove the old sash and place it in a labelled bag.
Sash Weights
If your window sash repairs are to replace a broken cord or just to keep your windows functioning and functional, replacing worn-out sash weights will improve sash operation and cut down on energy consumption. Sash weights are composed of heavy lead or iron cylinders that are enclosed in a concealed cavity and connected by a rope to the movable window sash. These weights provide counterbalance, allowing the window to be shut and opened without the need for mechanical or electrical devices. If they fail, sashweights are often neglected or not used by homeowners.
A weight in a sash 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 require a new piece of string, a length of sashcord and a few sashpulleys for tying the new weights to the cord.
Older windows made of wood are joined with mortise and tenon joints. The wood pegs that keep the parts together can be removed using pin punches and hammers. The majority of these pegs are large on one side, and smaller on the other. It is essential to remove first the smaller diameter sides. Later sashes made use of glue instead of pins. They can be cut with a knife and a mallet.
Once the sash has been removed, you can take off the sash stops and access the weight pockets. This is usually done via a small hole at the bottom of every jamb. This hole is covered by a wooden access panel that can be cut off to let you observe the inner workings of the frame.
After you have the sash stopped and the access panel removed, you will be able to take off the weight from the sash and replace it with new. First, weigh the sash, as the weights you've got may not be of the right size. After the new weight is in place you can tie a string around it and then thread it through the pulley for the sash. Then, nail the string to the boxed frame. Leave a few inches protruding at the top of the string to allow for future adjustments.
Sash Cords
Most old double-hung windows have a cord or chain connected to the weights that helps keep the sashes level in the jamb. As time passes, these cords may break, making it impossible to raise the window. A new sash cable will give you the ability to raise and lower the sash, and ensure it stays 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. They are typically nailed or screwed in and will need to be removed or relocated. You might be able to employ a hammer and chisel to prise them off however, it is always best to lay down dust sheets before beginning any work.
After removing the access panel, you are able to begin working on the sash. Take the narrow beads (also known as "tie rails") out of their grooves with flat bar or chisel. They are typically wedged into or nailed but can be prised free, so it's worth taking your time here. If the sash is still in place, pull the mortise-and tenon joints using a hammer or screwdriver, then remove each wood peg. The sash should move around freely now, however it may need some lubrication to make it feel less stiff.

With the sash open, measure enough sash cord/chain to extend from the pulley on the top of the jamb to the sash slot at the bottom. Cut the cord or chain and fix it using Step 6 above. You can use nail, hammer or screws. However nails are less likely to cause damage.
Unless you've bought an upgrade kit to replace the counterbalance system that was in place before, it's best to keep the original weights for balancing in place. They're not costly and simple to install if purchased them from architectural salvage stores. Based on the size of your window one or two sashweights may be needed to keep the sash in an open position.