Sash Window Repair
Sash windows can be severely damaged over time. Cosmetic damage may require a replacement. However, functional issues such as draughts or rattles are indicators that a sash windows needs to be repaired.
The first step is to steam the sash to loosen it. Take off the wood pegs using pin punch and hammer. Mark and identify all components to ensure they can later be replaced in the correct manner.
Broken or Rotten Timber
If not taken care of, rotting wood will begin to degrade brickwork and cause damage to the plaster around the window. The good part is that most of the time, this issue can be corrected without the need to replace the entire window.
The first thing to be taken care of is to ensure the timber in question is dry. Look at the colour and grain of the wood to see whether it's damp-free. If the wood is brittle and brown, it means that it's very likely that rot has already started to set in. Verify that the sash's location is held by a number wood spliced sections and that they aren't damp.
Moisture trapped in the corners of sash frames is a frequent issue. If this is the case, it could cause sash to become tangled and become difficult to open. To fix this issue clean the sash channel and eliminate any obstruction using a sharp chisel made of wood. When the sash channel is free of obstructions it is able to be primed to prevent future damp problems.
It's also important to evaluate the wood used to build the window frame. It is recommended to use wood that has a similar grain pattern and color to the existing wood pieces, otherwise it can be difficult to blend together the joins. It's also worth considering applying a preservative to the timber, as this can help to keep it in better shape and prevent decay.
If the timber in your sash windows is badly damaged and rotten, it might be a good idea to think about replacing it completely. If windows repair choose to replace them you should select the replacement that has the same design as your existing windows and to ensure that it's as beautiful when it's put in your home. Selecting UPVC instead of timber for example, could potentially lower the value of your property since potential buyers might believe that you've strayed from period design choices.
Sash Hardware is faulty Sash Hardware
A sash is made to move smoothly, however wood rot or other issues can often affect its functionality. A window that isn't functioning properly can also cause drafts in the home and an increase in energy efficiency. The longer the sash window is left unattended, the more wear and tear it will experience. This can reduce its lifespan and lead to water or moisture infiltration.
It can be difficult trying to figure out the root of a sash-window problem. The good news is that in many instances, a replacement sash may be the answer. Whether the issue is due to rotting timber, misalignment or an imbalance of the sash, or broken glass replacing one or both windows can help to solve the problem.
Replacing just one window sash can be less costly than replacing the frame and the glass. It is also an easier task than constructing a new double-hung window, which requires the removal of a greater amount of trim and parts. It is possible to begin by visually inspecting your existing window and frame, if you are planning to replace the sash. You may notice gaps and misalignments that can cause the sash tilting and prevent it from remaining upright.
In most cases, it's possible to repair the double-hung sash by removing the trim and working from the inside of the frame. First, you should remove the interior sash stops, which create an internal track that runs along the side of the window that is on the bottom. To do this spray a hose with water and lightly mist the inside the stop, then pull it off with a utility knife. Then, make use of a razor blade cut off any nail heads sticking out of the side of the stop.
After removing the sash and frame, you can look for a weight access panel, which is a knockout inside the frame that is large enough to pass a sash weight through. If your frame doesn't have one, you can make an opening by cutting an elongated rectangle from the jamb liner made of vinyl to the height of the stile.

Sash that isn't working properly weighs
In time the two weights used to move the sash up and down can become disengaged. This could cause the sash to jam or become stuck in the open position. This is typically due to broken or worn cords for sash that need to be replaced.
During this repair job it is important to place dust sheets everywhere it is possible to stop any dirt or debris from reaching your carpet or furniture. This is particularly important if you plan on lifting and moving the window during work to avoid damaging any area of your home.
Begin by carefully removing each staff bead from the frame on either side with a thin, wide chisel. There will be the groove that runs down the sash's side and ends with a hole for the new sashcord. Remove any old cord knots that have been nailed or glued to the hole.
You're now ready to start replacing the sash cords beginning with the top sash. To do this, gently pull the sash up until it is in contact with the bottom sill, and then support it with a thin wedge on both sides of the frame, or it could fall to the floor and break the glass, something you'll need to avoid!
You can then remove the access panel from the frame to access the sash cord and weight. Once you have the weight in hand, remove the dado off the edge of the wood and then insert the nail to secure it. Make sure the nail is long enough to get into the pocket of the sash as otherwise it won't fit.
Once you have the weight set after which you can replace the sash cord by feeding it into the hole. Then, push the sash over the rails, and down into the windowbox, and then test whether it opens or closes. If necessary, add more lubrication on the rails (we recommend silicone spray for vinyl, or candle wax for wooden sashes).
Replace both cords. Make sure that they're the same length so that if you remove one from the pin, it can be pushed through the sash, and rest on the pulley, allowing the sash to function normally. Once the sash is re-hung you can reattach the stop bead and your sash will be completed!
Glass damaged
A broom, a baseball or a stone thrown by a lawnmower can cause enough damage to the glass. The glass that has been broken allows rain, snow and insects to enter the home. In some instances, the resulting damage may necessitate a complete window replacement. The installation of new windows can be an expensive and time-consuming home improvement project. In most cases replacing individual damaged window panes is a more affordable option and less costly.
It is essential to examine the existing sash thoroughly before trying to replace the glass. This is a fantastic opportunity to discover any hidden areas where the wood has begun to rot, or areas where old weather stripping, glue and hardware have degraded. Making the effort to conduct this inspection will prevent you from having to perform more work later on.
After removing the glass, it's an ideal idea for the wood to be coated with homemade wood preserver. To make it mix equal parts mineral spirits and linseed oil. Apply the mix using a putty blade to the surface of sash and allow it to dry completely. This will ensure that your brand new glass and sash remains water-resistant and durable for an extended period of time.
If the sash is in good shape, it's possible to repair it without taking off the glass. The first step is to remove the window stop that is a vertical piece of wood that is placed above the stiles of the window frame. The window stop is held in place by a small pry-bar over an apex blade that is fitted with a stiff blade. Once the stop is removed, it's possible to split the stiles and rails using an easy-faced mallet or woodworking hammer to prevent damaging the shape of the sash. The next step is to eliminate the muntins which are the vertical and horizontal pieces of wood that divide the individual panes of glass in a shash.
It's easy to replace broken glass after the muntins have been removed. Use glazing compound to fix the metal tabs in their slots on the sash.