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Sash Windows Repair and Replacement

Sash windows that are older than 20 years can have various issues that include rattles and draughts. They could also be inefficiently insulated. With a little effort, they can be restored to a high level of performance.

First, remove the seal on the paint of the window stop using a utility knife. Then, remove the staff bead, then pull out the upper sash by removing chains or cords, and then storing the equipment in a bag labeled.

Sealing

Sash windows are beautiful in old buildings but they do need maintenance and can be subject to problems like cracks in putty, wet rot, and drafts. Sealing, replacement or repair of the sash window is an effective way to reduce these problems and improve energy efficiency.

The gaps between sash and frame are the main source of draughts. They can also cause noise reduction and rattle. Various methods can be used to reduce air leaks in a sash window, including sealing beads, specialty products, and secondary glazing.

A common issue is a gap between the top of the sash and the jamb frame, or between the bottom of the sash and the sill. This can lead to moisture leaking in, rotting wood and the growth of mold. The gap can be sealed with caulking made of polyurethane or silicone or foam sealant.

If a gap in the window is preventing windows from closing and opening smoothly, it may be necessary to replace spring bronze or sash runners. These are bronze strips that are stapled or nailed onto the edges of the lower sash to stop sideways rattle, and they are available at DIY stores. Tubular weather-stripping made of vinyl is a different option however it is prone to tear, and can make a difference to the appearance of windows.

When installing replacement sash runners It is crucial to measure the entire width of the window opening. It is best to measure from the top of the sash up to the horizontal centerline of the rail that connects it and from the bottom of the sash to the sill. These measurements can be transferred to the new runners, which will ensure a good fitting and better operation of the window.

In older buildings the gap between frame and sash is typically wider around the leading edge. It can be draught proofed by a self-adhesive V-strips, but it is crucial to account for this when measuring and cutting the material.

The strip should be cut at the top of the sash, with an inch more on each side to allow for movement. It should be cut squarely and placed in accordance with the angle of the sill. It is also important to use stainless steel screws, as brass can rust, and the best quality polyurethane or silicone adhesive.

Refurbishment

The sash is a beautiful historical feature of a lot of homes. Yet despite their beauty, these windows are susceptible to a myriad of issues. Common problems include rattling, stickiness or draughts. And rotting frames and meeting rails, broken glass bars or faulty weights can create a mess. If these issues occur, it's time to consider a sash repair or replacement.

Refurbishment can be more expensive than replacing the sash however, it can restore your sash's look and function to the same level that it was in its original form. Refurbishment involves lining both the meeting rail and the sash box with traditional putty, and repairing any damage caused by decay. It also involves re-painting the timber frame 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). Finally, it's recommended to fit brush pile weather strips in order to minimize rattle and increase insulation.

If a replacement sash is required it can be constructed using the same style to match the frame you have. This will help preserve the heritage style of your property. This is especially important for listed properties where any modifications made to windows will require planning permission.

Before you put the new window repairs in It is recommended to compare its metal tabs to those on the sash that was previously used (see below). If the tabs are different shapes, the new sash won't fit in the slots of the window frame.

If a window is damaged, it's essential to choose between repair or replacement, because each kind of work will require a different level of expertise and price. For example, if a sash window has a large chunk of glass missing, a replacement will be the best option. If the glass is only damaged in a tiny area or a sill is beginning to rot and needs to be repaired, then a repair will be more appropriate.

Replacement

While many homeowners are keen to keep their old sash windows in good working condition, the deterioration of the windows can result in problems like rattles, draughts or even broken glass. These issues usually lead to a replacement as the only feasible solution. However, there are other ways to improve the sash windows, beyond simply replacing them, like installing draught proofing as well as secondary glazing.

It is crucial to assess the severity of a issue, since it might not be practical to replace an entire window. A foggy glass problem, for example, is usually caused by the sash, and can be addressed without having to tear out the entire frame. A weak seal can often be corrected by making a few minor adjustments rather than an expensive full-frame tear-out and replacement.

Sash windows are surprisingly complex in design and have a lot of moving parts. It can be challenging to fix common issues like broken panes or snapped sash cables. Most homeowners don't want to remove the window frame in order to fix the issues. Many homeowners decide to work with a professional due to these reasons.

A specialist can help restore sash windows back to their original glory or even bring them up to modern energy standards. This may include reconditioning frames and fitting secondary glazing, to avoid heat loss from the window. It is also possible to add a brush-pile strip to reduce drafts and prevent the window from squealing.

To start a repair project take out the window stops (the moldings that are in front of the lower sash). Then, loosen the staff bead and remove the lower sash. Remove the cords and chains from both sides. Finally remove the sashweights from the bottom of the cavity for weight. Store the equipment in a secure location. Soften any old, hardened putty or filler by using a hot gun. Then scrape it off with the help of a putty knife. Reassemble the window. Reattach the hardware. Lubricate the pulleys by using Teflon or silicone spray. Reinstall the parting bead and install the upper sash.

Repair

The decision to repair or replace the sash window is an important one for the homeowner. Although modern replacements offer many advantages however, the original features of an older house provide personality and value to the property and are usually cheaper to fix than replacing them. Maintaining them in good condition can also lower the energy cost. Sash windows are susceptible to drafts and rattles. This could result in more expensive energy bills and can damage the frame and sash.

Sash windows can be a challenge to open or close. The mechanism for sliding could become dislodged or become draughty. It's best to leave the repair of a window with sash to a specialist because they require extensive dismantling. But, with the right tools and know-how, it is possible to fix old windows with sash yourself. Adam shows Jess the basics:

Getting the window to come apart starts with the removal of any security fittings that are in front of the lower sash. Next, remove the staff bead, then remove the bottom sash. Then, remove the cords or chains on both sides and tie the ends to stop them from being pulled back into the frame by the weights that are attached. It's time to take off the upper sash. The sash stops must be removed and a thin strip of wood that is used to hold the sash. Also, remove any paint-encrusted hardware. Unscrew the sash to reveal the balancing weight which is a large iron cylinder or lead that is enclosed inside a hidden compartment and held by a rope. To stop the sash from falling into the void, pierce it using a nail, and then let the weight go.

Once the sashes are free, clean out the jamb and meet rails, remove the glazing cords and sash bars, and strip any paint from the sash stops with an utility knife. Reattach the stops after the sashes are reinstalled. Use nails that are not large enough to puncture the weight of the balancing.

Reassemble the sash by putting the upper sash on top of its track, followed by the lower sash. Check that the sash stops and the frame are aligned properly. If needed, reconnect any beads used for parting. Reattach the sash chains or cords and then install the sash pulleys.