Sash Windows Repair and Replacement

Sash windows that are older than 20 years may have various issues such as rattles and draughts. They may also be poorly insulated. A little bit of care can often bring them back to a high standard of performance.

First, cut off the seal with a utility knife. Then remove the staff bead, then pull out the upper sash and remove the chains or cords, and then storing the hardware in a labeled bag.

Sealing

Sash windows are gorgeous in older structures, but they require regular maintenance. They can be affected by issues such as wet-rot, cracked putty, repairing and draughts. It is possible to decrease energy loss and improve the efficiency of windows with sash by replacing them, repairing or sealing them.

The gaps between the sash and frame are the main source of draughts. They can also trigger rattles and reduce sound-proofing. Sealing beads, special products and secondary glazing can all be used to reduce the air leakage inside the Sash.

A gap between the top and bottom of the sash, and the jamb frame is an issue that is common. This can cause moisture to leak into the wood, which can cause rotting and growth of mold. The gap can be closed with caulking made of polyurethane or silicone or foam sealant.

If a gap in the window is preventing the windows from opening and closing smoothly, it may be necessary to install new sash runners or spring bronze. These bronze strips are tied or stapled to the lower sash edges to prevent the rattling of the sides. They can be purchased at DIY stores. Tubular weatherstripping also can be used, however it tends to rip and may alter the look of your window.

When replacing sash runners, it is important to take full measurements of the window opening. It is recommended to measure from the top of the sash to the horizontal line of the rails that meet, and from the bottom of the sash to the sill. These measurements can later be transferred to new runners, which will ensure the best fit and function of the window.

In older structures, there is a wider gap between the sash as well as the frame on the leading edge. It can be draught proofed with a strip of self-adhesive Vstrip, however it is essential to account for this when measuring and cutting the material.

The strip should be cut to the height of the sash, with an inch more on each side to allow movement. It should be squarely trimmed and placed to align with the angle of the sill. It is also crucial to make use of stainless steel screws because brass is prone to rust, and high-quality polyurethane or silicone adhesive.

Refurbishment

The Sash window is a beautiful historical feature in many homes. These windows are beautiful but they can also be prone to problems. Common problems include rattling, draughts or sticking. And rotting frames and connecting rails, broken glazing bars or weights that are not working properly can cause a lot of trouble. If you are experiencing any of these issues, it is time to replace or repair your sash.

Refurbishment is more expensive option than simply replacing the sash itself, but it will improve the appearance and functionality of your sash window as good, if not superior to its original state. It involves re-lining the meeting rail and sash box with traditional putty, and then repairing any rot damage. It also involves re-painting the frame of timber and re-glazing with 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 install brush pile weather strip to prevent the noise of rattling.

If a new sash is needed it can be constructed using the same design to match your old frame. This will help preserve the heritage style of your home. This is particularly important for listed properties where any changes to windows will require planning permission.

Check the metal tabs of the new window with those of the old sash prior installing it (see below). If they're different shapes, the new sash will not fit in the window frame slots.

It's important to decide whether to replace or repair a damaged window, as each choice will require a different level and level of knowledge. For example, if a sash window has a significant piece of glass missing then replacing it is the best choice. If the glass is damaged in a small region or a sill has begun to decay, then a repair would be more appropriate.

Replacement

While many homeowners are keen to keep their old windows in good condition, deterioration could eventually result in problems like rattles, draughts or even broken glass. These issues usually suggest replacement as the only sensible solution. There are other ways to improve sash window performance other than replacing them. These include installing secondary glazing and draughtproofing.

Think about the scope of the problem. It may not be necessary or even suitable to replace a window. For instance, a foggy glass issue typically occurs within the sash itself and is usually able to be resolved without having to tear out the entire frame. A leaky seal can often be corrected by a few easy fixes instead of a costly full frame tear-out and replacement.

Sash windows are surprisingly complex in design and have many moving parts. This is why it can be tricky to fix common issues like sash cords that are snapped or broken panes. Solving these issues usually requires removal of the window frame which isn't something the majority of homeowners would like to tackle on their own. For these reasons, many choose to work with a specialist.

Specialists can restore sash window frames back to their original glory or update them to meet the latest energy standards. This may include reconditioning the frames and fitting secondary glass to block heat from escaping through the window. You can also install a brush-pile strip in order to minimize drafts and prevent the window from rattling.

To begin the door repair, remove the window stops. (The moldings are in front of the lower glass). Then loosen the staff and pull the lower window sash. Remove the cords or chains on both sides. Then, remove the sash weights from bottom of the cavity and remove them. Keep the hardware in a secure position. Soften any old filler or hardened putty by using a hot gun. Then scrape it away using a putty knife. Reassemble the window, reconnect the hardware and then lubricate the pulley axles using silicone or Teflon spray. Install the parting beads and reinstall upper sash.

Repair

It is essential for homeowners to make a choice on whether to repair or replace their sash windows. Modern replacements offer many advantages however, the original features of an older house can add authenticity and value. They are also cheaper to repair rather than replace. Maintaining them in good condition can help reduce the energy cost. Sash windows are susceptible to rattles, drafts and condensation, and these issues can lead to higher cost of energy and damage to the frame and Repairing the sash.

Sash windows are notoriously difficult to open and close and the standard sliding mechanism can become dislodged from its track or draughty. It is best to leave the repair of window with sash to a specialist, as they require extensive removal. With the right tools and skills it's possible to repair an old sash window yourself. Adam shows Jess the basics:

Remove any security fittings that are just in front of the lower window sash. Next, remove the staff bead, then pull out the bottom sash. Take the chains and cords from both sides, and tie them in such a way that they won't be pulled back by the attached weights. It's time to remove the upper sash. The sash stops must be removed and a thin strip of wood that holds the sash. Also, take off any painted-covered hardware. Reverse the sash to reveal the weight. It is a large iron or lead cylinder that is concealed in a cavity and is supported by cords. To prevent the sash from falling into the void, pierce it with nails and remove the weight.

After the sashes are removed clean the jambs and the rails that meet. Remove the glazing bars as well as the cords for the sash. Then employing a utility blade take off any paint that is on the sash stop. When the sashes are back in place, you can reattach the stops using nails that are small enough to avoid damaging the balancing weight.

Reassemble the sash by placing the upper sash first on its track, followed by the lower sash. Make sure that the sash stops and the frame are aligned correctly. If necessary, reattach any beads used for parting. Then, reconnect the sash chain or cords and re-install the axles of the sash pulleys.