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Sash Windows Repair and Replacement

Sash windows older than 20 years old can be afflicted with many issues such as rattles and draughts. They might also be inefficiently insulated. A little care can often restore them to a high standard of performance.

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

Sealing

Sash windows can look stunning in old buildings but they do need maintenance and can be subject to issues such as cracked putty, wet rot, and drafts. It is possible to reduce energy loss and increase the efficiency of windows with sash by replacing them or repairing them, or sealing them.

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

A common issue is a gap that exists between the top of the sash and the jamb frame or the bottom of the sash and the sill. This can lead to moisture leaking in, rotting wood and the growth of mold. The gap can be closed with silicone or polyurethane caulking or foam sealant.

If a gap in the window is preventing the windows from closing and opening without a hitch, it might be necessary to put in new spring bronze or sash runners. These are bronze strips that are stapled or nailed into the edges of the lower sash to prevent sideways rattle, and they are available at DIY stores. Tubular vinyl weather-stripping is another option, but it has a tendency to rip, and it can make a difference to the appearance of windows.

When replacing sash runners it is essential to measure the window opening. It is best to take measurements from the top of the sash up to the horizontal line on the meeting rail and from the bottom sash down to the sill. These measurements can be transferred to the new runners, which will ensure a perfect fit and better operation of the window.

In older structures, there is a wider gap between the sash and frame around the leading edge. It can be draught-proofed with a strip of self-adhesive V-strips, but it is crucial to take this into consideration when measuring and cutting the material.

A strip must be cut to the length of the sash, with an extra inch to allow for movement. It should be trimmed squarely and positioned to match the angle of the sill. It is also crucial to use stainless steel screws as brass can rust, and high-quality silicone or polyurethane adhesive.

Refurbishment

The sash window is an elegant, historic feature of many homes. Yet despite their beauty, these windows are prone to a myriad of issues. Common issues include rattling stuck or draughty windows. The rotted frames and the rails that connect them, as well as broken glazing bars, defective frames or weights that are rotten are all causes of problems. If you are experiencing any of these issues it's time to replace or repair your sash.

Refurbishment can be a more costly alternative than replacing the sash, but it will improve the appearance and functionality of your sash window to as good, if not better than its original state. Refurbishment involves lining both the meeting rail and the sash box with traditional putty, and repairing any damage caused by decay. It also involves re-painting the timber frame and re-glazing 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 the rattling.

If a new sash is required the frame can be constructed from similar designs to the frame that was previously used and keep the character of your house. This is especially crucial for listed homes where any changes to windows will require planning permission.

Compare the metal tabs on the new window with the old sash prior Sash Windows Repair installing it (see below). If they are different shapes and sizes, the new sash will not fit inside the slots of the window frame.

If a window has been damaged, it is crucial to decide between replacement or repair, because each type of work will require a different degree of expertise and expense. For instance, if a sash window has a large chunk of glass missing then replacement is the best choice. But in the event that the glass has been damaged in one small section or a sill is rotting then a repair will be more appropriate.

Replacement

Many homeowners wish to keep their old sash windows in good condition, but it is inevitable that deterioration will cause problems like draughts or rattles. Broken glass can also occur. This is why replacing sash windows is often the only solution to these problems. However, there are other ways to improve the sash windows beyond just replacing them, like installing draughtproofing and secondary glazing.

It's important to consider the extent of a issue, as it may not be feasible to replace the entire window. A glass that is foggy, for example, is usually caused by the sash, and can be fixed without tearing out the entire frame. A weak seal can be fixed by a few easy fixes rather than an expensive full-frame tear-out and replacement.

Sash windows are quite complex in design and feature lots of moving parts. It can be a challenge to fix some common problems like broken panes or sash cables that have snapped. Most homeowners don't want to disassemble the window frame in order to fix the issues. Many homeowners choose to work with a professional due to these reasons.

Specialists can restore sash window frames back to their original glory or bring them up-to-date with the latest energy standards. This could include reconditioning the frames and installing secondary glazing, which will stop heat through the window. You can also install a brush-pile strip to reduce drafts and stop the window from squealing.

To begin a repair, take off the window stops. (The moldings are in front of the lower glass). Then, loosen the staff bead and remove the lower sash. Remove the chains or cords that are on both sides. Then, remove the sash weights and the bottom of the cavity and remove them. Store the hardware in a safe location. Soften any old filler or hardened putty using a heat gun, and scrape it off with a putty knife. Reassemble the window. Reattach the hardware. Lubricate the pulleys by using Teflon or silicone spray. Reinstall the parting bead, and reinstall upper sash.

Repair

The decision to repair or replace the sash window is a crucial one for homeowners. While modern replacements provide many advantages however, 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 shape can reduce the cost of energy. Sash windows are susceptible to rattles, drafts and condensation, and these issues can lead to higher energy bills and damage to the frame and the sash.

Sash windows can be difficult to open or close. The sliding mechanism may be slack or draughty. repairing upvc windows a sash double glazed window repair involves extensive dismantling of the frame of the window, so it's best left to the professionals. With the right tools and experience, it is possible to fix an the sash window that is old. Adam shows Jess how to begin:

Remove any security fittings just in front of the lower window sash. Then, take off 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 weights. It's now time to remove the upper sash. Remove the sash stops, a thin vertical wood strip that holds the sash. Also, take off any hardware that has been painted. Unscrew the sash to reveal the balancing weight, which is a heavy iron cylinder or lead that is enclosed inside a hidden compartment and held by rope. To keep the sash from falling into the void, hit it with a nail and sacrifice the weight.

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

To reassemble the sash put the top sash into its track first, and then the lower sash. Check that the sash stops and the frame are properly aligned. If necessary, reattach any parting beads. Reattach the sash cords or chains and install the sash pulleys.