How to Repair a Sash Window
Experts agree that restoring an old windows with sash is more eco friendly and cost-effective than replacing them. So, why not give it a go yourself?
Dealing with issues such as sticking sashes, draughts, noise pollution and visible damage will make your home more livable. Here are some things to consider prior to starting.
Damaged Sash Cords
When the cords that pull the sash upwards and down wear out it becomes difficult to open or close the window. In some cases the cords can even break. To repair this, sash cords must be replaced. This is a simple repair for any homeowner, and can usually be done in just an hour or less if you're working on just one lower sash.
Prepare your work space by covering the floor with a cloth. This will collect any debris that may fall or loose nails when you remove the window. If you're working in an older home it is recommended that you wear a protective mask to shield yourself from potential dust from lead paint.
Start by taking off the stop beads, which are tiny pieces of wood that border the inner window frame and stop the sash from sliding out of the window frame. Remove the window sash and set it on a workbench or table. Now you can access the pockets for weights, which are cast-iron weights that are located behind the window frame. After you have removed the weights and the old sash cords can begin replacing the new ones.
First, measure the length of the old cord so that you know the length to cut your new cord. Then, tie a knot at the end of your new cord, so it won't slide over the top of the old pulley. Now, you can insert your new cord through the access hole you drilled into the panel cover. Then, reinstall the window sash and test its operation.
Then, put back the panel cover and the staff bead, and ensure that all nails are driven securely into place and positioned below the surface of the wood to keep the sash from moving too much or damaging the paint finish. If the sash doesn't slide smoothly, you can seal the gap between the staff bead and the window with decorators caulk in order to limit draughts.
When the caulk has dried and the trim is reinstalled, it's time to replace the sash as well as its trim. If you're uncomfortable working with tools, you could have a professional repair company replace the sash cords for you. This is an expensive solution. Most homeowners will choose an DIY solution that involves replacing the cords themselves.
Broken Sash Weights
If your windows that are sash don't open and closing properly it might be because the sash cables are damaged. Replace the old sash cords, and you should be able to get your windows back in working order again.
Remove the screws that hold the beads in place with the help of a screwdriver. Then remove the sash from the window frame. Unlock the access panels on the side jambs If there are any to gain access to the pulleys and weights for the sash. Carefully remove the sash from the frame and then lay down dust sheets, if you are able, to avoid damage to walls and paintwork in the process.
Look over the pulleys and sash weights and determine whether they are the right ones. You might have to balance an sash that is very heavy. You can purchase sashweights made of lead on the internet or at your local hardware store if you don't already have them.
Once you have the sash weights taken out of the pocket, remove any slack in the cords. Then feed the new cord through the pulley, and then out the other end of the channel. Then pull the cord up until it is at the weight and tie a knot.
Repeat the process for the second sash cord. Then, insert the sash back into the window frame ensuring it is level. Replace the parting bead and staff bead, if needed and seal double glazing windows repairs the gaps around them with decorators caulk.
The final step is to install the interior sash stop. If you are unsure how to do this, ask an expert for help. After reinstalling them, test the windows for functionality. Then, you can put back the window by replacing the window trim and access panel covers and painting any areas that were damaged or covered in the repair. Make sure that the window is firmly installed prior to completing the installation. You can verify this by placing it on an appropriate scale to ensure that the two sash weights are the same in size. If they're not, use'make-up' weights made of lead to ensure that the sash is in balance.
Sash Locks that aren't working
One of the most common reasons that a sash does not close or open properly is a faulty lock. In some instances, this could be a simple fix however in other instances, it could require a total replacement of the lock. A faulty lock is also an issue for security, since it can provide an easy opportunity for thieves to gain entry into your home.
Window locks are made to to stand up to the weight of the sash, however, they will get worn out over time. This is mostly because the hardware is exposed to so much stress, as well as the natural movement of the foundation of the house. It is important to check for other issues that could cause your window lock to fail.
A misaligned interlock is often the cause of the sash lock to not lock properly. A small alignment error could hinder the keeper from engaging the latch, and thus preventing the door from closing. This can usually be repaired by lifting up the bottom sash and then pushing it into the room, so that the interlocks are aligned correctly.
Another common reason for the sash lock to not work is the build-up of rust within the mechanism itself. Many older window frames constructed of aluminum or wood will corrode over time. This corrosion will then connect the mechanisms and prevent them from closing and opening properly.
In some cases, it is necessary to replace the entire sash lock fastener which can be done easily. It's a simple procedure that requires just the use of a few tools and patience. The first step is to remove the old fastener and take off any debris or rust from the surface. Then, you can make use of a drill to create new holes for the bolt and screw. In the end, you'll have to fix the new fastener in place and make sure it's secure.
This is a relatively straightforward job that can be accomplished by most homeowners, and will ensure your window is both safe and secure. This is a great way to cut down on air infiltration, as well as making your home more energy efficient.
Broken Glass Panes
Glass panes can be damaged by errant baseballs, lawnmower blades and other debris. It is up to you to decide if need to replace the window sash or repair the glass pane. Depending on the extent of damage to the glass is, you might also need to remove the glazing compound and metal glazing points. Wear gloves, a mask, and protective eyewear when repairing a cracked pane. You should also cover your floor with a drop cloth to prevent small glass particles from getting into your work area and creating danger to children or pets.
Before replacing a window pane and replace it, you should carefully remove the old one and scrape any caulking or putty from the frame's rabbets or grooves that hold the glass. If there's a lot of putty, it could be required to use a pull-type paint scraper or an old chisel and tap lightly to prevent cracking the window. A heat gun may help soften the old putty so it's easier to take off. After removal of the old pane smooth the rabbets, and then apply a new caulking compound or Glaziers compound.
As the putty is drying, prepare the new glass to be installed by cleaning and wiping it with a dampened sponge. Remove the glass's insulation by cutting it along the top and bottom using a utility blade. The metal points that hold the glass in place can be removed by smashing them out or pulling them out with the help of a putty knife.
To replace the glass pane, roll the glaziers compound into a rope approximately 3/4 inch thick. Press it firmly into the rabbet, around the edge of the glass and then against the sash of wood. Fill any holes or gaps that may exist between the putty frame and the glass. Allow the putty to dry completely before repainting the window. Make sure you wear protective gloves and cover the work area with a drop cloth to keep your work area clean and secure from glass shards that break.