Sash Windows Repair and Replacement

Sash windows that are older than 20 years may have many issues, including draughts and rattles. They might also be inefficiently insulated. With a little effort they can be repaired to a high level of performance.

First, knock off the paint seal from the window stop using a utility knife. Then remove the staff bead and take the upper sash out and remove the chains or cords, and then storing the hardware in a labeled bag.

Sealing

Sash windows look stunning in older buildings, however they require care. They can be affected by issues like wet-rot, cracked putty, and draughts. Repair, sealing or replacement of the windows in sash is a great method to minimize these issues and increase energy efficiency.

The gaps between sash and frame are the main source of drafts. They can also trigger rattling and reduced sound-proofing. Sealing beads, specialist products, and secondary glazing can all be used to reduce the air leakage within the Sash.

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

If a gap in the window is preventing the windows from closing and opening easily, it could be necessary to install new sash runners or spring bronze. These are a type of bronze that are stapled or nailed to the edges of the lower sash to stop sideways rattle. They are available at DIY stores. Weatherstripping made of tubular vinyl can also be used, however it tends to rip and may alter the look of your window.

When installing replacement runners for sash it is essential to measure the window opening. It is recommended to take measurements 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 later be transferred to new runners which will ensure the best fit and function 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 V-strips, but it is important to consider this when cutting and measuring the material.

The strip should be cut at the height of the sash and with an inch extra on each side to allow movement. It should be cut squarely and positioned to align with the angle of the sill. It is also important to make use of stainless steel screws because brass is prone to rust, and high-quality silicone or polyurethane adhesive.

Refurbishment

The sash is an attractive historic feature in many homes. Yet despite their beauty, windows like sash windows can be prone to a variety of problems. Draughts, rattling, sticking or leaking are common issues. The rotting of frames and connecting rails, broken glazing bars, or damaged weights could add to the inconvenience. If these issues occur, it's time for a sash repair or replacement.

Refurbishment is more expensive option than simply replacing the sash itself but it can restore the look and function of your sash window the same or superior to its original state. Refurbishment involves the lining of both the meeting rail and the sash box using traditional putty and fixing any damage caused by the rot. It also involves re-painting the frame of timber and re-glazing with traditional glass. A full refurbishment can also include adding draught proofing, Sash Windows Repair 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 prevent the noise of rattling.

If a replacement sash needed It can be made using the same style to match your existing frame. This will help preserve the style and character of your house. This is especially important for listed buildings where any changes to the windows need planning permission.

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

If a window is damaged, it is essential to decide between repair or replacement, since each kind of repair will involve a different level of expertise and expense. If a large portion of the glass in the sash is missing replacing it would be an alternative. But when the glass has been damaged in a small area or a sill has been decaying, a repair may be the better option.

Replacement

While a lot of homeowners are eager to keep their old windows in good order, deterioration can eventually result in problems like rattles, draughts or even broken glass. This is why replacing them is often the only solution to these problems. There are other ways to improve the performance of sash windows than simply replacing them. This includes installing secondary double glazing window repairs and draught-proofing.

Think about the scope of the issue. It may not be necessary or even suitable to replace windows. A glass that is foggy for instance is typically caused by the sash and can be resolved without tearing out the entire frame. A weak seal can often be remedied by a few easy fixes instead of a costly full frame tear-out and replacement.

Sash windows are quite complex in design and have many moving parts. This is why it can be a challenge to solve common issues, like snapped sash cords or broken panes. Many homeowners do not want to take apart the window frame to fix these problems. Many homeowners opt to hire a specialist for these reasons.

Specialists can restore sash window frames to their original splendor or bring them up-to-date with the latest energy standards. This can include reconditioning frames and fitting secondary glass to stop heat from escaping through the window. It can also be helpful to install a brush pile strip to stop rattling and reduce drafts.

To begin a repair project take out the window stops (the moldings on the front of the lower sash). Next, sash Windows repair remove the staff bead, then take off the lower sash. Take the chains and cords from both sides. Then, remove the sash weights and the bottom of the weight cavity and take them off. Keep the hardware in a safe place. Soften any old filler or hardened putty by using a hot gun. Then scrape it away using a knife for putty. Reassemble the window. Reattach the hardware. Lubricate the pulleys using Teflon or silicone spray. Install the parting beads and reinstall the upper sash.

Repair

It is crucial for the homeowner to make a decision on whether to replace or repair their sash windows. While modern replacements provide many advantages, the original features of an older house add personality and value to the property and are usually cheaper to fix than replacing them. Maintaining them in good condition will also help you save money on energy. Sash windows are susceptible to rattles, drafts, and condensation. These problems can lead to increased cost of energy and damage to the frame and the sash.

Sash windows can be a challenge to open and close. The mechanism for sliding could become dislodged or draughty. It is best to leave the repair of window with sash to a specialist, as it requires extensive removal. With the right tools and skills it is possible for you to repair the sash window that is old. Adam shows Jess how to get started:

The process of bringing the window apart begins with the removal of any security fittings in front of the lower sash. Then, remove the staff bead and pull out the bottom sash. Then, pull out the chains or cords on both sides, and tie them to prevent them being pulled back into the frame by the attached weights. It's now time to remove the upper sash. Remove the sash stops (a thin vertical strip of wood that is used to hold the sash) and remove any paint-encrusted hardware. Reverse the sash to reveal the weight. It is a large iron or lead cylinder that is hidden in a cavity and is supported by a cord. To prevent the sash falling into the void, you must pierce it using a nail, and then let the weight go.

After the sashes are removed, clean the jambs and the rails that meet. Remove the glazing bars and the sash cords. Then, using a utility blade take off any paint that is on the sash stop. Reattach the stops after the sashes have been put back in place. Use nails that are not large enough to damage the balancing weight.

To reassemble the sash place the top sash onto its track first, and then the lower sash. Make sure that the sash stops are aligned properly with the frame, and reattach the beads for parting if necessary. Reattach the sash chains or cords and attach the sash pulleys.