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Sash Windows Repair and Replacement

Older sash windows can suffer from a range of issues including draughts rattles and poor insulation. A little care can often restore them to a high standard of performance.

First, cut off the seal with a utility knife. Remove the staff bead, pull out the upper sash, and remove any cords or chains. Keep the hardware in a bag with an identification label.

Sealing

Sash windows are beautiful in older buildings, but they require maintenance and could be susceptible to problems like cracked putty, wet rot and draughts. Sealing, replacement or repair door of the sash window is an effective method to minimize these issues and increase energy efficiency.

The gaps between sash frame are the primary cause of drafts. They can also cause noise reduction and rattle. Sealing beads, special products and secondary glazing can all be used to minimize the air leakage within the sash.

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

Installing a new sash runner or spring bronze may 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 stop sideways rattle, and they can be purchased from DIY stores. Tubular vinyl weather-stripping is another option, but it is prone to tear and detract from the appearance of windows.

When installing replacement runners for sash, it is important to measure the entire width of 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 down to the sill. These measurements can be incorporated into the new runners, which will ensure a perfect fitting and better operation of the window.

In older structures, the gap between frame and sash is typically larger around the leading edge. It can be draught-proofed 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 height of the sash. There should be an extra inch each side to allow to allow movement. It should be trimmed squarely and placed to align with the angle of the sill. Use stainless steel screws as brass may be rusty. Also, use the highest quality polyurethane or silicone glue.

Refurbishment

The sash is a stunning, historical feature of many homes. They are beautiful however they are susceptible to issues. Draughts, rattling or leaks are all common problems. Frames that are rotting and rails that connect them, as well as broken glazing bars, faulty weights or rotten frames are all causes of problems. If these issues occur, it's time for an sash repair double glazing windows or replacement.

Refurbishment is more costly than replacing the sash, but can restore your sash's look and functionality to the same level as its original state. It involves re-lining the meeting rail and sash box with traditional putty and repairing any damage caused by rot. Re-painting the frame of the timber is also included, as well as the re-glazing process 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's also recommended to install brush pile weather strip to prevent the noise of rattling.

If a new sash is needed It can be made using the same style to match the frame you have. This will help preserve the traditional style of your house. This is especially crucial for listed homes where any changes to the windows will require planning permission.

Compare the metal tabs of the new window with those of the old sash prior to installing it (see below). If these are different shapes the new sash will not fit in the slots of the window frame.

If a window is damaged, it is crucial to decide between repair or replacement, because each type of work will involve a different level of expertise and expense. If a large portion of the glass in a sash is missing, then replacing it will be an alternative. If the glass is only damaged in a small region or a sill has begun to decay and needs to be repaired, then a repair will be better.

Replacement

Many homeowners would like to keep their old sash window in good condition, however it is inevitable that deterioration will cause problems such as rattles or draughts. Broken glass is also a possibility to occur. This is why replacing them is often the only solution to these problems. However, there are other ways to improve sash windows that go beyond replacing them, like installing draught proofing as well as secondary glazing.

Take note of the severity of the issue. It might not be necessary or even suitable to replace a window. For instance, a fogging glass issue usually occurs within the sash itself and is typically a solution without ripping out the whole frame. A weak seal can often be remedied by making a few minor adjustments instead of a costly full frame tear-out and replacement.

Sash windows are quite complicated in their design and come with lots of moving parts. This is why it can be tricky to remedy some common problems like sash cords that are snapped or broken panes. Resolving these issues often requires dismantling the window frame, which isn't something that most homeowners want to tackle on their own. This is why many opt to hire a professional.

A specialist can help restore windows made of sash to their original splendor or even bring them up to current energy standards. This may include reconditioning the frames and fitting secondary glass to stop heat from getting out of the window. It can also be helpful to install a brush pile strip, to stop the rattling and decrease drafts.

To begin the repair, take off the window stops. (The moldings are in front of the lower glass). Then you can loosen the staff, and remove the lower window sash. Remove the chains and cords from both sides. Finally, remove the sash weights from bottom of the cavity and take them off. Keep the hardware in a secure place. Soften any old filler, hardened putty, or filler with a heat gun and scrape it away using a knife for putty. 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

It is important for the homeowner to decide whether to replace or repair their sash windows. Although modern replacements can provide many advantages but the original features of a home that was built earlier give character and value to the property and are often cheaper to fix than replacing them. Maintaining them in good condition can help save on energy costs. Sash windows are susceptible to drafts, rattles, and condensation, and these issues can lead to higher energy bills and damage to the frame and sash.

Sash upvc windows repairs near me are notoriously difficult to open and close, and the traditional sliding mechanism can be displaced from its track, or even draughty. Repairing a sash windows requires extensive removal of the frame of the window and should be left to the professionals. With the right tools and experience, it is possible to fix an old sash window yourself. Adam shows Jess how to get started:

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

After the sashes have been removed clean the jamb and meet rails, remove the glazing cords and sash bars, and scrape off any paint off the sash stops using an utility knife. 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 properly aligned with the frame, and reattach the beads for parting if necessary. Reattach the sash chains or cords and install the sash pulleys.