Sash Windows Repair and Replacement

Older sash windows may be plagued by a variety of problems including draughts, rattles, and poor insulation. With a little care they can be restored to a high level of performance.

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

Sealing

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

Draughts are usually caused by gaps between the sash and the frame. They can also cause rattling and reduced sound-proofing. Different methods can be employed to limit air leaks within windows with sash, including sealing beads, special products, and secondary glazing.

A common problem is a gap between the top of the sash and the jamb frame, or between the bottom of the sash and window repair the sill. This can lead to water leaking into the wood the wood, rotting, and Window Repair mould growth. The gap can be sealed by caulking made of silicone or polyurethane or foam sealant.

Installing a new sash runner or spring bronze might be necessary if a gap prevents the windows from opening and shutting effortlessly. These are bronze strips that are stapled or nailed to the edges of the lower sash to stop sideways rattle, and they are available from DIY stores. Tubular vinyl weather-stripping is another option but it has a tendency to tear, and can detract from the appearance of windows.

When replacing sash runners, it is important to measure the window opening. It is recommended to measure from the top of the sash to the horizontal line of the rails that meet and from the bottom of the sash down to the sill. These measurements can be incorporated into the new runners, which will help ensure a proper fitting and better operation of the window.

In older structures there is a larger gap between the sash as well as the frame at the leading edge. It can be draught-proofed by using strips of V-strip that is self-adhesive. However it is essential to consider this when cutting and measuring material.

A strip should be cut to the length of the sash, and with an extra inch on each side for movement. It should be cut squarely and positioned in accordance with the angle of the sill. Use stainless steel screws since brass may get rusty. Also, use the highest quality polyurethane or silicone glue.

Refurbishment

The sash is an attractive historic feature in many homes. These windows are gorgeous however they are prone to problems. The most frequent issues are rattling, stuck or draughty windows. The rotted frames and the rails that connect them, as well as broken glazing bars, defective frames, or rotten weights can cause issues. If you encounter any of these issues, it is time to replace or repair your sash.

Refurbishment can be more expensive than replacing the sash, however, it can restore the appearance and function to the same level as its original state. Refurbishment involves lining both the meeting rail and the sash box with traditional putty and fixing any damage caused by decay. It also involves 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 put in brush pile weather strip to minimize the rattling.

If a replacement sash is needed it can be constructed using the same style to match your existing frame. This will help preserve the style and character of your home. This is especially important for listed buildings where any modifications to windows 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 correctly into the window frame slots.

When a window is damaged it is essential to decide between repair or replacement, since each kind of repair will require a different level of expertise and price. If a large portion of the glass in the sash is missing then replacing it will be the better alternative. However in the event that the glass is damaged in one small section or a sill is rotting then a repair will be the better option.

Replacement

Many homeowners would like to keep their old sash window in good shape, but it is inevitable that deterioration will cause problems like rattles or draughts. Broken glass may also occur. These issues often lead to a replacement as the only logical solution. But there are ways to improve the sash windows beyond just replacing them, like installing draught proofing as well as secondary glazing.

It is important to determine the severity of a issue, since it might not be feasible to replace the entire window. A foggy glass problem, for example is typically caused by the sash, installed and can be fixed without tearing out the entire frame. A poor installed seal can also often be corrected with a few simple fixes rather than an expensive full-frame tear-out and replacement.

Sash windows are a complicated design with many moving parts. It can be challenging to fix common issues like cracked panes or snapped sash cables. The solution to these issues typically involves removal of the window frame which isn't something the majority of homeowners would like to take on themselves. Because of this, many choose to work with a professional.

A specialist can help restore windows with sash back to their original glory or even bring them up to current energy standards. This can include reconditioning frames and installing secondary glass to block heat from getting out of the window. It is also possible to add a brush pile strip, to stop rattling and reduce drafts.

To begin a repair project start by removing the window stops (the moldings on the front of the lower sash). Then loosen the staff and pull out the lower window sash. Remove the cords or chains on both sides. Finally take the sashweights out of the bottom of the cavity for weight. Keep the hardware in a secure location. Use a heat gun to soften the old, hardened filler or putty. Scrape it off using a blade made of putty. Reassemble the window. Reattach the hardware. Lubricate the pulleys with Teflon or silicone spray. Install the parting beads and put back the upper sash.

Repair

It is essential for homeowners to make a choice on whether to repair or replace their sash windows. Modern replacements offer many advantages however, the original features in an older home can add character and value. They are also cheaper to repair rather than replace. Maintaining them in good shape can also save energy costs. Sash windows are susceptible to drafts and rattles. This can lead to higher energy bills and damage the frame and the sash.

Sash windows can be difficult to open or close. The mechanism that slides can become dislodged or draughty. Repairing a sash window involves extensive dismantling of the window frame and should be left to a professional. With the right tools and know-how, it is possible to fix old sash windows yourself. Adam shows Jess how to get started:

Getting the window to come apart begins by removing any security fittings on the front of the lower sash. Then, take off the staff bead. Then, take out the bottom sash. Then, pull out the cords or chains on both sides, and tie them to prevent them being pulled back into the frame by the weights attached to them. It's time to remove the upper sash. Remove the sash stops (a thin vertical strip of wood that holds the sash) and then loosen any painted-covered hardware. The sash can be pulled back to reveal the balancing weight, which is a heavy iron cylinder or lead that is enclosed in a hidden cavity and held by rope. To stop the sash falling into the void pierce it with nails and remove the weight.

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

Reassemble the sash by putting the upper sash on top of its track, then the lower sash. Verify that the sash stoppers and the frame are aligned properly. If needed, reconnect any parting beads. Reattach the sash chains or cords and attach the sash pulleys.