Sash Windows Repair and Replacement

Older sash windows suffer from a range of issues including draughts rattles, and inadequate insulation. With a little attention they can be restored to a higher level of performance.

First, scrape off the seal on the paint of the window stop using an utility knife. Remove the staff bead, pull out the upper sash, and remove any cords or chains. Store the hardware in a bag with an identification label.

Sealing

Sash windows are gorgeous in older structures, but they require maintenance. They are susceptible to issues such as wet-rot, cracked putty and draughts. Repair, sealing or replacement of the windows sash is an effective method to minimize these issues and improve energy efficiency.

The gaps between the sash and frame are the primary source of drafts. They can also lead to rattling and reduced sound-proofing. There are a variety of methods to reduce air leaks in the sash window, such as sealing beads, specialty products and secondary glazing.

A gap between the top and bottom of the sash, and Sash Windows Repair the jamb frame, is an issue that is frequent. This can cause moisture to leak in, rotting wood, and mold growth. Seal the gap with silicone, polyurethane or foam sealant.

Installing new sash runner or spring bronze could be necessary in the event that a gap blocks the windows from closing and opening smoothly. These are bronze strips that are stapled or nailed onto the edges of the lower sash to prevent sideways rattle, and they can be purchased at DIY stores. Tubular vinyl weather-stripping is another option however it has a tendency to rip, and it can affect the appearance of windows.

It is crucial to take measurements of the entire window opening before installing an alternative sash runner. It is best to take measurements from the top of the sash to the horizontal centerline of the rail that connects it and from the bottom of the sash to the sill. These measurements can later be transferred to new runners, which will ensure a better fit and operation of the window.

In older structures there is a greater gap between the sash and the frame at the leading edge. It is possible to draught proof by a self-adhesive Vstrip, however it is crucial to take this into consideration when measuring and cutting the material.

A piece of material should be cut to the width of the sash. There should be an extra inch to allow for movement. It should be trimmed square and positioned so that the ends are matched to the angle of the window sill. Make sure to use stainless steel screws since brass may be rusty. Also, use high-quality silicone or polyurethane glue.

Refurbishment

The windows with sash are a stunning historical feature in many homes. Yet despite their beauty, these windows are prone to a variety of problems. Common problems include rattling, stuck or draughty windows. The rotting of frames and meeting rails, broken glass bars, or damaged weights could create a mess. If these issues occur, it's time for repairs or replacements to your sash.

Refurbishment can be a more costly alternative than replacing the sash itself but it will improve the appearance and functionality of your sash window to as good, if not better than the original condition. It involves re-lining the meeting rail and sash boxes with traditional putty and repairing any damage caused by rot. Re-painting of the timber frame is also included, as well as re-double glazing window repairs 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). Finally, it's recommended to fit brush pile weather strips in order to minimize rattling and improve insulation.

If a new sash is required it can be constructed with the same design to match the frame you have. This will help preserve the style and character of your property. This is particularly important for listed buildings where any changes to the windows require planning permission.

Check the metal tabs of the new window to the old sash before installing it (see below). If they're different sizes and sizes, the new sash will not fit in the slots of the window frame.

If a window is damaged, it's essential to choose between replacement or repair, because each type of work will require a different degree of expertise and expense. If a large portion of the glass in a sash is missing, replacing it would be a better alternative. If the glass is only damaged in a small area or a sill has begun to decay or rotting, then a repair could be better.

Replacement

While many homeowners are keen to keep their old sash windows in good working condition, the deterioration of the windows can cause issues such as rattles, draughts or even broken glass. This is why replacing them is often the only solution to these issues. However, there are ways to improve the sash windows beyond just replacing them, like installing draught proofing and secondary glazing.

Take note of the severity of the problem. It might not be necessary or even suitable to replace windows. For instance, a foggy glass issue typically occurs within the sash and is usually able to be resolved without having to tear out the entire frame. It is often possible to fix a weak seal using a couple of simple solutions, rather than cutting out the entire frame and reinstalling it.

Sash windows are extremely complex in design and have lots of moving parts. It can be a challenge to fix some common problems like broken panes or sash cables that have snapped. The solution to these issues typically involves dismantling the window frame, which isn't something that the majority of homeowners would like to take on themselves. Because of this, many homeowners choose to work with a specialist.

Specialists can restore sash window frames back to their original splendor or bring them up-to-date with modern energy standards. This may include reconditioning the frames and installing secondary glass to stop heat from escaping through the window. It is also possible to add a brush-pile strip to reduce drafts and stop the window from shaking.

To begin a repair project, remove the window stops (the moldings that are in front of the lower sash). Then loosen the staff and remove the lower window sash. Remove the cords and chains from both sides. Then, remove the sash weights from the bottom of the weight cavity and remove them. Place the equipment in a secure location. The heat gun will soften hardened filler or putty. Scrape it away with a blade made of putty. Reassemble the window. Reattach the hardware. Lubricate the pulleys using Teflon or silicone spray. Install the parting beads and put back the upper sash.

Repair

It is important for the homeowner to decide whether to replace or repair their sash windows. Modern replacements are beneficial in many ways, but the original features of an older house can add authenticity and value. They are also less expensive to repair instead of replacing. Inspecting them regularly can help reduce energy costs. Sash windows are susceptible to drafts and rattles. This can result in more expensive energy bills and can damage the frame and the sash.

Sash windows are notoriously difficult to open and close, and the traditional sliding mechanism can become dislodged from its track, or even draughty. Repairing a sash window involves extensive dismantling of the frame of the window and is best left to a professional. But, with the right tools and experience it is possible to repair old windows with sash yourself. Adam shows Jess the basics:

Remove any security fittings that are just in front of the lower window sash. Then, you can remove the staff bead. Then, remove the bottom sash. Take the chains and cords from both sides, and tie them in a way that they can't be pulled back by the attached weights. The next step is to take out the upper sash. Take out the sash stops and a thin wood strip that holds the sash. Also, take off any painted-covered hardware. The sash should be pulled back to reveal the weight. It is a massive iron or lead cylinder that is hidden inside a cavity and held by a cord. To stop the sash from falling into the void, pierce it using a nail, and Sash Windows Repair then let the weight go.

After the sashes have been removed clean the jambs as well as the rails that meet. Remove the glazing bars as well as the cords of the sash. Then, using a utility blade take off any paint that is on the sash stop. Reattach the stops when the sashes have been put back in place. Use nails that are small enough not to damage the balancing weight.

To reassemble the sash place the top sash onto its track first, and then the lower sash. Make sure the sash stops are in the correct alignment with the frame, and reattach the beads for parting if necessary. Finally, reattach the sash chains or cords and then re-attach the sash pulley axles.