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Sash Window Repair

Sash windows may become out of balance, or even break. Pam searches the web for wavy glasses that are salvaged and keeps an eye open for discarded sashweights made of metal. She then seeks replacements, such as washers or nuts, to balance her window.

Pam beds each pane with a rope of glazing compound that she works into the rabbet groove or pocket, that is around the opening. This reduces drafts and reduce the cost of heat loss.

Sticking Sashes

It's a nightmare when double-hung windows get stuck. They'll be difficult to see when they squeak during a storm. A window that's too loose may allow in air and noise which could increase your energy costs. This is neither optimal, but both can be fixed with the proper tools and determination.

One of the most common issues with weighted sash windows is that paint may accumulate in the channels they slide over, causing them blockage. Luckily, most issues with this can be solved through cleaning and lubricating the tracks.

Start by removing the old caulking that was between the window repairs stop (the internal one) and the window frame. Scrape off any paint that has built up. Make sure you make use of a sharp blade and then put up plastic sheets and a vacuum cleaner right below to contain any paint dust and chips.

Clean the tracks with a dry, clean cloth and apply a silicone lubricant for more smooth sliding. This lubricant is available at many home improvement stores or online. You can test it by dragging the sash upwards or downwards.

If it continues to jam, there could be an issue with the sash cord. Examine the sash cord to determine if the cord is catching or hanging in the sash, or has snapped completely. You'll need to re-cord your window if this is the situation.

Another reason for an obstruction is the pin that holds the rail in place has slipped out. It isn't easy to fix and you'll need to call in an expert most of the time.

Use a wood hardener in the event that the wood is swollen and warped, but there's not a pin. This is a quick drying liquid that can help restore damaged wood, so you'll be able to fix your window without needing to remove it completely. After using it, you'll be able to break the two sashes by placing a piece of wood on the top of the corner where they meet, and tapping it lightly with a hammer.

Draughts

Draughts are a major problem for old sash windows particularly in winter months. They can be caused by rotten wood, broken putty or worn sash cords. This allows cold air to enter the window, making it more difficult to warm your home. There are some things you can do to stop draughts from coming through your sash windows, such as filling any gaps with expanding foam or strips to block draughts that you can buy at most hardware stores. They're effective however you'll require replacement periodically because the foam expands with usage.

Gapseal is a more permanent solution. It's a spongy rubbbery seal you can cut and push in the gaps between the sash window frames. It can be used on its own or with adhesive strips on the bottom and top of the frame. This is costly and you'll have to reapply it throughout the life of your window. However, it is an effective long-term fix and easy to remove.

Another popular DIY method of draughtproofing is to use cling film that is scrunched up and pushed into all the gaps around your window. This is a great draught-stopper however, it could also hinder the movement of the sash and even cause a fire. The sash has to be removed to reopen the window, and the clingfilm needs to be to be applied every time the sash is closed.

As part of a comprehensive overhaul you can have your window draught-proofed professionally. This could include new sash cords as well as parting beads, staff beads, lubrication for the pulley wheels and rebalancing the weights, in addition to staining or painting the frames and sashes. This can bring the sash back to its original purpose and improve its energy efficiency and fix any minor flaws in the wood. It's much less disruptive than replacing windows altogether and will significantly reduce draughts and improve your home's thermal performance.

Decay

The good news is that your sash window frames are not in need of repair if they've been damaged or decayed. The wood used in the frames of these windows is usually of very high-quality and with proper restoration they can be revived to provide an excellent level of performance for a long time. Regular inspections are essential, as is ensuring the wood is properly ventilated. This will stop the accumulation of moisture that can lead to wood rot.

The majority of the issues you'll encounter with sash windows will be readily apparent on close visual inspection, but some are harder to spot. Wood decay is a challenge to treat, since fungus can eat the wood. It is possible to repair damaged sections of timber but the best way to avoid further decay is to ensure the wood is kept dry.

First, clean any paint from the hardware. The bottom rail and the connecting rail could need to be removed from the frame (depending on the location of your sash). The next step is to remove the "pocket covers" which are bits of wood on the side of the frame lower down that provide access to the weights (the parting beads run through the middle of them). These are often nailed in place and stuck with paint, so you will likely require a knife to get them out of the way. Once the pockets are removed you can begin to chisel away any wood that is rotting, and apply a good quality, water-resistant wood filler. Once the filler is dry, the primer must be applied to prevent further decay.

It is recommended to inspect the sash weights within the window as well to make sure they are balanced and not misaligned or pulling one side more than the other. The sash could be thrown off its track if they are not balanced. This could cause the frame to break or become damaged. You can replace the sashweights by new ones, or install an entirely new balance system to stop the sash from swinging the wrong direction.

Poor Security

Sash windows are vulnerable to damage and wear from the weather over time. This can lead to the decay of timber, which will require replacement. Water marks under the window or a softened frame could be a sign of decaying wood. It is important to consult an expert to assess the situation and determine if sash window repairs are necessary.

In the same way, over time, the rails on the bottom can become damaged. This can be spotted by the presence of water marks on the sill or the window becoming soft to the touch. A professional consultation will also be required to assess the situation and recommend any replacement or resealing of sash window components.

It is a major concern when triple and double glazing windows begin to let noise pollution back into the home. If this happens the structural integrity of the sash windows may be at risk, and they is likely to need to be replaced with a different option.

A common sash repair problem is when the sash becomes stuck in the frame. This can be caused by the cord snapping or problems with sash the ratchets. If the problem is with the sash rats, a bit of gentle pressure is usually enough.

Removing the sash from the frame and cleaning the tracks of dirt or dust can help resolve this issue. After cleaning the tracks, take off any security fittings and carefully remove the chains or sash cords. The staff bead can be sealed using a draught-proof seal to reduce the risk of draughts. This can also improve the paint finish. The gap between the box and the sash could be filled with decorators caulk to enhance the operation of the sash and lessen the risk of draughts.