Sash Windows Repair and Replacement

Sash windows older than 20 years can have various issues such as rattles and draughts. They might also be inefficiently constructed to be insulated. A little bit of care can often restore them to their original performance.

First, take off the paint seal using an utility knife. Remove the staff bead, then pull out the upper sash and take out any chains or cords. The hardware should be stored in a bag that has an identification label.

Sealing

Sash windows are beautiful in old buildings, however they require regular maintenance and could be susceptible to issues such as cracks in putty, wet rot and draughts. It is possible to reduce energy loss and improve the efficiency of windows with sash by replacing them, repairing or sealing them.

Draughts are mostly caused by gaps between the sash and frame. They can also trigger noise reduction and rattle. Different methods can be employed to reduce air leaks in windows with sash, including sealing beads, specialist products, and secondary glazing.

A common problem is a gap that exists between the top of the sash and the jamb frame or between the bottom of the sill and the sash. This can cause moisture leaking in and rotting of the wood, and mould growth. Seal the gap using silicone, polyurethane or foam sealant.

If a gap in the window is preventing the windows from opening and closing easily, it could be necessary to replace spring bronze or sash runners. These bronze strips are attached by staples or nails to the lower sash edges in order to stop the rattling of the sides. They can be purchased at DIY stores. Tubular vinyl weather-stripping is another option, but it has a tendency to rip, and it can affect the appearance of windows.

It is crucial to measure the entire window opening prior to installing a an alternative sash runner. It is recommended to take measurements from the top of the sash to the horizontal line 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 the best fit and function of the window.

In older buildings the gap between the frames and sash is typically larger around the leading edge. It can be draught proofed by a self-adhesive Vstrip, however it is crucial to account for this when measuring and cutting the material.

A strip must be cut to the width of the sash, and with an extra inch on each side to allow for movement. It should be squarely trimmed and positioned to align with the angle of the sill. It is also important to use stainless steel screws, since brass can rust and high-quality polyurethane or silicone adhesive.

Refurbishment

The windows with sash are a stunning, historic feature of many homes. These windows are beautiful but they can also be susceptible to issues. Rattling, draughts, sticking or leaking are typical issues. The rotted frames and the rails that connect them, as along with broken glazing bars, damaged frames, or rotten weights are all causes of problems. If you encounter any of these issues, it is time to replace or repair your sash.

Refurbishment may be more expensive than replacing the sash, but can restore the appearance and function to the same standard as its original state. It involves lining the meeting rail and sash box with traditional putty, and then repairing any rot-related damage. Re-painting the frame of the timber is also included, as is glazing 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 install brush pile weather strips in order to minimize rattle and increase insulation.

If a new sash is needed it can be constructed with the same design to match your old frame. This will preserve the style and character of your home. This is especially crucial for listed buildings, where any changes to the windows need planning permission.

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

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. However when the glass has been damaged in a tiny section or a sill is damaged, a repair would be more appropriate.

Replacement

Many homeowners would like to keep their old sash windows in good condition, but the deterioration of the window will eventually cause issues like draughts or rattles. Broken glass may also occur. These issues typically point to an inevitable replacement as the only feasible solution. There are other ways to improve the performance of sash windows rather than replacing them. These include the installation of secondary glazing and draught-proofing.

Take note of the severity of the problem. It might not be necessary or even appropriate to replace the window. A glass that is foggy for instance is typically caused by the sash, and can be resolved without tearing out the entire frame. A poor seal can also often be remedied with a few simple fixes rather than an expensive full-frame tear-out and replacement.

Sash windows feature a complicated design with many moving parts. This is why it can be tricky to fix common issues like sash cords that are snapped or broken panes. Resolving these issues often requires removal of the double glazed window repairs frame which isn't something the majority of homeowners would like to take on themselves. Many homeowners opt to engage a professional for these reasons.

A specialist can assist in restoring windows made of sash to their original splendor, or even bring them up to modern energy standards. This may include reconditioning frames and fitting secondary glazing, which will stop heat loss out of 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, remove the window stops. (The moldings that are in front of the lower glass). Then, loosen the staff bead and remove the lower sash. Remove the cords and chains from both sides. Finally, disconnect the sash weights from the bottom of the weight cavity and remove them. Keep the equipment in a secure location. Heat gun to soften old, hardened filler or putty. Scrape it off using the blade of a putty. Reassemble the window, reconnect the hardware and lubricate pulley axles by using silicone or Teflon spray. Install the parting beads again and reinstall the upper sash.

Repair

It is important for homeowners to make a choice on whether to repair or replace their sash windows. Modern replacements offer many advantages, but the original features of an older home can provide the character and value. They are also less expensive to repair instead of replacing. Maintaining them in good condition can help save on energy costs. Sash windows are susceptible to drafts and rattles. This can result in higher energy bills and even damage to the frame and Double Glazed Window Repairs the sash.

Sash windows are notoriously difficult to close and open as the traditional sliding mechanism can be displaced from its track or draughty. Repairing a sash window requires extensive dismantling of the frame of the Double Glazed Window Repairs, so it's best left to the professionals. With the right tools and knowledge it's possible to repair old sash windows yourself. Adam shows Jess how to begin:

Making the window come apart starts with the removal of any security fittings that are in front of the lower sash. Then, remove the staff bead and take the sash off the bottom. Take the chains and cords from both sides, and tie them in such a way that they won't be pulled back by the weights. It's now time to remove the upper sash. Remove the sash stops (a thin vertical strip of wood that holds the sash) and loosen any painted-covered hardware. Pull the sash to reveal the balancing weight that is a massive iron cylinder that is encased in a hidden cavity and held by a rope. To prevent the sash from falling into the void, make a hole in it using a nail and sacrifice the weight.

After the sashes are removed, clean the jambs and meet rails. Remove the glazing bars and cords of the sash. Then employing a utility blade, remove any paint from the sash stop. Reattach the stops when the sashes have been reinstalled. Use nails that are not large enough to puncture the balancing weight.

Reassemble the sash by putting the upper sash first into its track, then the lower sash. Make sure that the sash stops are aligned properly with the frame, and reattach the beads that separate if required. Reattach the sash chains or cords and install the sash pulleys.