Sash windows that are older than 20 years may have many issues that include rattles and draughts. They may also be poorly constructed to be insulated. With a little effort they can be restored to a high level of performance.
First, take off the paint seal using an utility knife. Then remove the staff bead and remove the upper sash and remove the cords or chains and storing equipment in a bag labeled.
Sealing
Sash windows are beautiful in older buildings, but they require care. They are susceptible to issues like wet-rot, cracked putty, and draughts. It is possible to reduce energy loss and increase the efficiency of sash windows by replacing the windows, repairing or sealing them.
Draughts are usually caused by gaps between the sash and the frame. They can also trigger rattles and reduce sound-proofing. There are a variety of methods to limit air leaks within windows with sash, including sealing beads, special products, and secondary glazing.
A common problem is a gap that exists between the top of the sash and the jamb frame or between the bottom of sash and the sill. This can lead to moisture leaking into the wood, rotting it, and mold growth. Seal the gap using silicone, polyurethane, or foam sealant.
If a gap is hindering windows from closing and opening without a hitch, it might be necessary to replace sash runners or spring bronze. These are bronze strips that are stapled or nailed onto the edges of the lower sash to prevent sideways rattle. They can be purchased from DIY stores. Tubular vinyl weatherstripping can also be used, however it is more likely to tear and can detract the appearance of your window.
When replacing sash runners it is essential to measure the window opening. It is recommended to measure from the top of the sash up to the horizontal centerline of the meeting rail and from the bottom of the sash to the sill. These measurements can be incorporated into the new runners, which will help ensure a perfect fitting and better operation of the window.
In older structures there is a larger gap between the sash as well as the frame at the leading edge. It can be draught-proofed by using a strip of V-strip that is self-adhesive. However, it is important to consider this when measuring and cutting material.
A strip should be cut to the length of the sash, with an additional inch each side to allow to allow movement. It should be squarely trimmed and placed in accordance with the angle of the sill. It is also crucial to make use of stainless steel screws as brass can rust, and the best quality polyurethane or silicone adhesive.
Refurbishment
The sash is an attractive, historical feature of many homes. They are beautiful, but they can be susceptible to problems. The most frequent issues are rattling, stickiness or draughts. The rotting of frames and meeting rails, broken glass bars or faulty weights can create a mess. When these problems occur it's time to consider an sash repair or replacement.
Refurbishment is more expensive option than simply replacing the sash itself, but it can bring back the appearance and function of your sash window to as good if not better than the original condition. It involves lining the meeting rail and sash box with traditional putty and repairing any rot damage. Re-painting of the timber frame is also included, as is glazing using traditional glass. A full refurbishment can also include adding draught proofing, re-attaching the sash furniture/ironmongery and replacing the parting bead (the dividing strip between the two panes of glass). It is also recommended to put in brush pile weather strips to lessen rattling and improve insulation.
If a new sash is required, it can be made from similar designs to the frame of the previous one and preserve the style of your home's historic design. This is particularly crucial for listed homes where any changes to the windows will require planning permission.
Before you put the new window on, it's best to check the metal tabs against the tabs on the old sash (see below). If the tabs are different shapes, the new sash won't fit correctly into the window frame slots.
If a window has been damaged, it's essential to choose between repair or replacement because each kind of work will require a different degree of expertise and cost. If a large portion of the glass in the sash is missing replacing it is a better alternative. If the glass is damaged in a small region or a sill is rotting and needs to be repaired, then a repair will be better.
Replacement
Many homeowners wish to keep their old sash windows in good condition, but deterioration will eventually cause problems like rattles or draughts. Broken glass may also occur. These issues often point to an inevitable replacement as the only feasible solution. There are other ways to improve sash window performance other than replacing them. They can be improved by the installation of secondary glazing and draught-proofing.
It is important to determine the severity of the issue, as it may not be feasible to replace a complete window. For instance, a fogging glass issue usually occurs in the sash itself and is usually able to be resolved without ripping out the whole frame. A leaky seal can be fixed by a few easy fixes instead of a costly full-frame tear-out and replacement.
Sash windows have a complex design that has many moving parts. It can be a challenge to fix common issues such as broken panes, or sash cables that have snapped. Resolving these issues often requires removal of the window frame which isn't something that most homeowners would want to take on themselves. Many homeowners decide to engage a professional for these reasons.

A professional can help restore windows made of sash back to their original glory, or even bring them up to the latest energy standards. This could include reconditioning frames and fitting secondary glass to stop heat from getting out of the window. It may also be beneficial to put in an extra strip of brush pile to stop rattling and reduce drafts.
To begin a repair, take off the window stops. (The moldings are on the side of the lower glass). Next, remove the staff bead and take off the lower sash. Take off the chains or cords on both sides. Finally, remove the sash weights from bottom of the cavity and take them off. Keep the hardware in a secure position. The heat gun will soften the old, hardened filler or putty. Scrape it off using the blade of a putty. Reassemble the window. Reattach the hardware. Lubricate the pulleys by using Teflon or silicone spray. Install the parting beads again and then reinstall the upper sash.
Repair
The choice of replacing or repairing a sash window is a major one for homeowners. Modern replacements offer many advantages, but the original features of an older home can add authenticity and value. They are also cheaper to repair instead of replacing. Keeping them in good condition can also save energy costs. window repairs near me are vulnerable to rattles, drafts and condensation. These problems can result in increased costs for energy and damage to the frame and sash.
Sash windows are notoriously difficult to open and close, and the traditional sliding mechanism can become dislodged from its track or draughty. Repairing a sash windows requires extensive dismantling of the window frame, so it's best left to the professionals. With the right tools and experience, it is possible to fix old sash windows yourself. Adam shows Jess the basics:
Remove any security fittings in front of the lower window sash. Next, take off the staff bead, then take the sash off the bottom. Then, pull out the chains or cords on both sides and tie the ends to stop them from being pulled back into the frame by the attached weights. Now it's time to remove the upper sash. Remove the sash stops (a thin vertical strip of wood that is used to hold the sash) and remove any painted-covered hardware. The sash can be pulled back to reveal the balancing weight which is a heavy lead or iron cylinder enclosed in a hidden cavity and secured by rope. To prevent the sash falling into the void, you must pierce it using a nail, and then sacrifice the weight.
After the sashes have been removed, clean the jambs and meet rails. Remove the glazing bars and cords for the sash. Then using a utility knife, remove any paint from the sash stop. Once the sashes are back in place, reattach the stops using nails that are not too large to risk puncturing the weight that is balancing.
To reassemble the sash, place the top sash on its track first, and then the lower sash. Make sure that the sash stops are properly aligned with the frame, and then reattach the parting beads if needed. Reattach the sash cords or chains and install the sash pulleys.