Sash Windows Repair and Replacement

Sash windows older than 20 years can have a variety of problems that include rattles and draughts. They may also be inefficiently insulation. With a little effort they can be repaired to a higher level of performance.

First, knock off the paint seal from the window stop with an utility knife. Then remove the staff bead and remove the upper sash by removing chains or cords and storing the hardware in a bag marked.

Sealing

Sash windows are beautiful in old buildings but they require regular maintenance and can be subject to problems like cracked putty, wet rot, and draughts. It is possible to reduce energy loss and increase the efficiency of sash windows by replacing or repairing them, or sealing them.

The gaps between sash and frame are the primary cause of drafts. They can also lead to rattles and reduce sound-proofing. Sealing beads, specialty 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 frequent. This can result in the leaking of moisture and rotting of the wood and the growth of mould. Seal the gap with silicone, polyurethane or foam sealant.

Installing a new sash runner, or spring bronze could be required in the event that a gap blocks windows from opening and shutting smoothly. These are a type of bronze that are stapled or nailed into the edges of the lower sash in order to prevent sideways rattle. They can be purchased from DIY stores. Tubular vinyl weather-stripping is another option however it is prone to rip, and it can detract from the appearance of a window.

It is crucial to measure the entire window opening prior to installing the replacement 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 down to the sill. These measurements can be transferred to new runners, which will ensure an improved fit and performance of the window.

In older structures, the gap between frame and sash is typically wider around the leading edge. It can be draught-proofed with a strip of self-adhesive Vstrip, however it is crucial to consider this when cutting and measuring the material.

A strip must be cut to the length of the sash, and with an extra inch to allow movement. It should be trimmed squarely and placed in accordance with the angle of the sill. Use stainless steel screws as brass may rust. Also, make sure to use the highest quality polyurethane or silicone glue.

Refurbishment

The sash window is an elegant, historic feature of many homes. However, despite their beauty these windows are prone to a range of issues. Rattling, draughts, sticking or leaks are all common problems. Frames that are rotting and rails that meet, as and broken glazing bars, damaged frames, or rotten weights are all causes of problems. If these issues occur, it's time for repairs or replacements to your sash.

Refurbishment can be more expensive than replacing the sash, but can bring back the appearance and function to the same standard as its original state. It involves re-lining the meeting rail and sash box using traditional putty and fixing any rot-related damage. It also includes re-painting the frame with timber and reglazing 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 minimize rattling.

If a replacement sash is required, it can be made with the same design to match your existing frame. This will maintain the traditional style of your home. This is particularly important for listed buildings where any modifications made to windows will require planning permission.

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

When a window is damaged it's essential to choose between repair or replacement, since each kind of repair will require a different level of expertise and price. If a large part of the glass in the sash is missing replacing it would be an option. 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 problems such as rattles, draughts or even broken glass. These issues often lead to a replacement as the only sensible solution. But there are ways to improve sash windows beyond just replacing them, like installing draught proofing and secondary glazing.

It's important to consider the extent of a problem, as it may not be appropriate or even practical to replace an entire window. A foggy glass problem for instance, is usually caused by the sash, and can be addressed without having to tear out the entire frame. A poor seal can also often be corrected with a few simple fixes instead of a costly full frame tear-out and replacement.

Sash windows are quite complex in design and feature a lot of moving parts. It can be challenging to fix common problems such as broken panes, or snapped sash cables. The solution to these issues typically involves taking apart the window repairs near me frame, which isn't something that most homeowners would want to tackle themselves. Many homeowners decide to work with a professional due to these reasons.

A specialist can help restore windows made of sash back to their original glory, or even bring them up to modern energy standards. This may include reconditioning frames and fitting secondary glazing to stop heat out of the window. You can also install an edge strip for brush-piles to cut down on drafts and stop the window from squealing.

To begin the repair, remove the window stops. (The moldings are on the side of the lower glass). Next, remove the staff bead, then remove the lower sash. Remove the cords and chains from both sides. Finally, remove the sash weights and the bottom of the weight cavity and remove them. Place the hardware in a secure place. Heat gun to soften the old, hardened filler or putty. Scrape it away with the blade of a putty. Reassemble the window, reattach the hardware and lubricate pulley axles using silicone or Teflon spray. Install the parting beads again and then reinstall the upper sash.

Repair

It is essential for the homeowner to decide whether to replace or repair their sash windows. Although modern replacements offer numerous benefits, the original features of a home that was built earlier give authenticity and value to the property and are generally less expensive to fix than replacing them. Maintaining them in good shape can reduce the energy cost. Sash windows can be prone to rattles and drafts. This can lead to more expensive energy bills and can damage the frame and the sash.

Sash windows can be difficult to open and close. The sliding mechanism may become sloppy or draughty. It is best to leave the repair of sash windows to professionals because it requires extensive dismantling. With the right tools and knowledge, it is possible to fix an old sash window yourself. Adam shows Jess how to start:

Getting the window to come apart begins with the removal of any security fittings that are in front of the lower sash. Next, take off the staff bead, then take the sash off the bottom. Remove the chains and cords from both sides, and knot them in a way that they can't be pulled back by the weights attached. It's time to take off the upper sash. The sash stops must be removed and a thin strip of wood that holds the sash. Also, remove any painted-covered hardware. Pull the sash to reveal the balancing weight, that is a massive lead or iron cylinder enclosed inside a hidden compartment and held by rope. To stop the sash falling into the void, pierce it with a nail and sacrifice the weight.

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

Reassemble the sash by placing the upper sash on top of its track, followed by the lower sash. Verify that the sash stoppers and the frame are properly aligned. If needed, reconnect any beads that are parting. Then, reconnect the sash chains or cords and re-install the axles for the sash pulleys.