Sash Window Repair

Sash windows could be out of balance or break. Pam searches the web for wavy glasses that are salvaged and keep an eye out for discarded metal sashweights. She then searches for replacements in the form of washers or nuts to balance her window repairs.

Pam will bed each pane by placing the glazing material in a rope into the rabbet groove or pocket around the opening. This reduces drafts and reduce the cost of heat loss.

Sashes that stick Sashes

It's a nightmare when double-hung windows become stuck. They'll sway during a storm and you'll lose view. On the other side, a window that's too loose can let outside air and noise through and your energy costs could increase. This is neither ideal, but both can be addressed with the appropriate tools and determination.

A common problem with old windows with weighted sash is that paint may build up in the channels they slide on, making them jam. Most of these problems can be solved by cleaning and oiling the tracks.

Take the caulking off of the space between the window stop (the one on the inside) and the frame of the window. Then scrape off any paint that has accumulated. Use a sharp knife and put plastic sheets and an air-collecting vacuum cleaner beneath the surface to catch any paint dust or chips.

Clean the tracks using a dry cloth, then apply an oil based on silicone to make them more gliding. It is available at many home improvement stores or online. Then, move the sash upwards or down to test it.

If it continues to block, the sash cable may be faulty. Verify if the cord is caught or hanging up in the sash, or if it has snapped off completely. You'll have to re-cord your window in the event of this.

Another possible reason for a jam is the pin that holds the rail in place has slipped out. It can be difficult to fix and you'll need to call in a professional most often.

If a pin hasn't fallen out but the wood has become swollen or warped it's a good idea to use a wood hardener on it. This liquid will dry quickly and can repair damaged wood. You won't have to remove your sash windows in order to repair them. After you've used it, you can take the two sashes apart by placing a piece wood in the bottom corner of the window where they meet.

Draughts

Draughts can be a problem when you have an old sash window particularly in the winter. They are usually caused by decayed wood, cracked putty, or worn cords for sash. This can allow cold air to enter the window, making it difficult to warm your home. You can stop draughts by filling gaps with expanding foam or by using draught-proof strips that are available at most hardware shops. They are efficient however, you will need to replace them periodically because the foam expands with use.

A more permanent option is Gapseal, which is a rubbery spongy seal that can be cut to size and put into the gaps between the sash window frame. It can be applied on its own or with adhesive strips on the top and bottom of the frame. This option is fairly expensive and will have to be applied over the time of your windows' lifespan, but it is a long-term solution and is easy to remove in the event that you want to open the window.

Cling film can also be used to block drafts. Simply scrunch it up and push it into all the gaps that surround your window. This is a great draught-stopper however, it could also hinder the sash's movement and cause a fire. Additionally the sash needs to be removed to open the window again and the cling film has to be applied each time you close the sash.

As part of a complete overhaul you can have your sash window professionally draught-proofed. This may include the fitting of new sash strings staff beads and parting beads as well as the lubrication and rebalancing of the weights and the lubrication and rebalancing the pulley wheel. It may also involve painting or staining of the frames and the sashes. This will bring the sash back to its original purpose and improve its energy efficiency and fix any minor defects in the wood. It is less disruptive than removing the windows and will reduce drafts, enhance thermal performance and significantly reduce costs.

Decay

If your windows are sash and have suffered damage or decay the good news is that they aren't necessarily damaged beyond repair. The frames of these windows are usually constructed of high-quality wood. With the proper restoration they can be repaired to provide high performance for many years to come. The key is regularly checking the frames and making sure that the wood is well ventilated to prevent moisture accumulation, which can cause wood rot.

Most of the problems you'll face with sash windows are evident upon close examination, however some are harder to spot. Wood decay is difficult to treat, since fungus can eat the wood. While it is possible repair rotten timber however the best method to avoid future rot is by keeping the wood dry.

The first step is to clean any paint from the hardware. The bottom rail and the meeting rail could have to be removed from the frame (depending on the location of your sash). You will then need to remove the "pocket covers" that are pieces of wood in the side of the frame low down that give access to the weights (the parting beads run through the middle of them). You may require a sharp knife for removing them if they're attached by nails or paint. Once the pockets are removed you can begin to chisel away any wood rot and then apply a high-quality, water-resistant wood filler. Once the filler is dry, a coat of primer should be applied to guard against further decay.

It is recommended to inspect the sash weights within the window too to make sure they are properly balanced and not pulling one side more than the other. If they are not balanced the sash is liable to fall off its track and could cause damage to the frame. The sash weights can be replaced with new ones or a new mechanism for balancing can be installed to stop the sashes from swinging towards the wrong side of the frame.

Poor Security

Over time, sash windows can become exposed to the elements, and are prone to deterioration due to weather and general wear. This can lead to decay of the timber, which will require replacement. Wood decay can be detected by water marks beneath the window or the frame becoming soft to touch. It is crucial to speak with an expert to assess the situation, and determine if repairs to the sash window are required.

In time the rails at the bottom can also be damaged. The sill may show water marks, or a window that is soft to the touch could indicate this. A professional will be required to evaluate the situation and glazing recommend any needed replacement of the sash window's seal or replacement.

It is a major concern when triple or double windows are glazed and start to allow noise pollution back into your home. If this happens the structural integrity of the window could be at risk and the sash window will require replacement.

A typical sash repair issue is when the sash gets stuck in the frame. This could be due to a snapped sash cord or it could be the result of an issue with the sash the ratchets. If it is the latter scenario, a little gentle persuasion can usually help the window to be opened to reopen. Alternatively, the ratchets will need to be reset.

This issue can be solved by taking the sash off and cleaning the tracks. Once the tracks are clean remove any security fittings that might be present, and then taking off the sash cords and chains will allow the sash to be removed. A draught seal may be placed around the staff bead to reduce draughts and enhance the appearance of the paint finish. The gap between the box and the sash can then be filled with decorators caulk in order to improve sash operation and reduce draughts.