Sash Windows Repair and Replacement

Sash windows older than 20 years may have a variety of problems such as rattles and draughts. They may also be inefficiently insulated. With a little attention they can be repaired to a higher level of performance.

First, cut off the paint seal using an utility knife. Remove the staff bead, pull out the upper sash and take out any chains or cords. Keep the hardware in a bag that has the label.

Sealing

Sash windows are beautiful in older buildings, but they require care. They are susceptible to problems like wet-rot cracked putty, and draughts. Sealing, replacement or repair of the windows in sash is a great way to reduce these problems and increase energy efficiency.

Draughts are usually caused by gaps between the sash and the frame. They can also cause noise reduction and rattling. Sealing beads, specialty products and secondary glazing can be used to limit the air leakage in the sash.

A gap between the top and bottom of the sash, and the jamb frame, is a common problem. This could cause moisture to leak in, rotting wood and growth of mold. The gap can be closed with silicone or polyurethane caulking or foam sealant.

Installing a new sash runner, or spring bronze may be required if a gap prevents windows from closing and opening easily. These are strips of bronze that are stapled or nailed to the edges of the lower sash in order to prevent sideways rattle, and they can be purchased at DIY stores. Tubular vinyl weather-stripping is another option however it has a tendency to rip, and it can detract from the appearance of a window.

When replacing sash runners It is crucial to measure the window opening. It is best to take measurements from the top of the sash up to the horizontal centerline of the meeting rail, and from the bottom of the sash down to the sill. These measurements can be incorporated into the new runners, which will ensure a good fitting and better operation of the window.

In older buildings the gap between the frame and sash is typically greater around the leading edge. It is possible to draught proof by a self-adhesive Vstrip, however it is essential to take this into consideration when measuring and cutting the material.

A piece of material should be cut to the height of the sash, with an additional inch on each side to allow movement. It should be squarely trimmed and placed to match the angle of the sill. It is also crucial to make use of stainless steel screws because brass is prone to rust, and high-quality polyurethane or silicone adhesive.

Refurbishment

The sash is a beautiful, historical feature of many homes. These windows are gorgeous but they can also be prone to problems. Draughts, rattling or leaking are common issues. Rotting frames and rails that connect them, as and broken glazing bars, damaged weights or rotten frames can all cause problems. If you experience any of these issues it's time to replace or repair your sash.

Refurbishment is a more expensive option than simply replacing the sash, but it will improve the appearance and functionality of your sash window as good if not superior to its original state. Refurbishment involves lining the meeting rail as well as the sash box with traditional putty, and repairing any damage caused by the rot. 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). In addition, it is recommended to fit brush pile weather strips to reduce the rattling and increase insulation.

If a replacement sash is required It can be made using the same design to match the frame you have. This will help preserve the traditional style of your property. This is particularly crucial for listed homes where any changes made to windows will require planning permission.

Before you put the new window in place, it's best to compare its metal tabs to those on the old sash (see below). If they are different shapes, the new sash will not fit in the slots of the window frame.

It's important to decide whether to replace or repair windows that are damaged, as each will require a different degree and amount of expertise. For example when a sash double Glazed window repairs near me has a large piece of glass that is missing, then a replacement will be the best option. But, if the glass is damaged in a small area or a sill has begun rotting then a repair will be the better option.

Replacement

Many homeowners wish to keep their old sash windows in good condition, however the deterioration of the window will eventually cause issues like rattles or draughts. Broken glass may also occur. This is why it's often the only option to solve these issues. However, there are other ways to improve the sash windows, beyond simply replacing them, including installing draught proofing and secondary glazing.

Take note of the severity of the problem. It may not be necessary or even suitable to replace the window. Foggy glass, for example is typically caused by the sash, and can be addressed without having to tear out the entire frame. A leaky seal can often be corrected by a few easy fixes rather than an expensive full-frame tear-out and replacement.

Sash windows have a complex design that has many moving parts. It can be a challenge to fix common issues like broken panes or snapped sash cables. Solving these issues usually requires removal of the window frame which isn't something most homeowners want to take on themselves. Many homeowners decide 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 modern energy standards. This can include reconditioning frames and fitting secondary glass to stop heat from escaping through the window repair. It is also possible to add an edge strip for brush-piles to cut down on drafts and prevent the window from rattling.

To begin a repair, remove the window stops (the moldings that are in front of the lower sash). Then, loosen the staff and remove the lower window sash. Remove the chains and cords from both sides. Then, remove the sash weights and the bottom of the weight cavity and remove them. Place the hardware in a secure location. Soften any old, hardened putty or filler using a heat gun, and scrape it away using a putty knife. Reassemble the window, reattach the hardware and lubricate pulley axles using silicone or Teflon spray. Install the parting beads and then reinstall the upper sash.

Repair

The decision to repair or replace the sash window is a major Double Glazed window repairs near me one for the homeowner. Modern replacements offer many advantages however, the original features in an older house can add character and value. They are also cheaper to repair than replacing. Maintaining them in good shape can help save on energy costs. Sash windows are prone to rattles, drafts, and condensation, and these problems can lead to increased cost of energy and damage to the frame and the sash.

Sash windows are notoriously difficult to close and open, and the traditional sliding mechanism may become displaced from its track or draughty. It is best to leave the repair of window with sash to a specialist, as it requires extensive dismantling. With the right tools and knowledge it is possible to repair an old sash window yourself. Adam shows Jess how to begin:

Getting the window repairs to come apart begins with the removal of any security fittings on the front of the lower sash. Next, remove the staff bead, then remove the bottom sash. Remove 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 time to remove the upper sash. Remove the sash stops (a thin vertical strip of wood that holds the sash) and loosen 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 held by an elastic cord. To prevent the sash from falling into the void hit it with an hammer and then sacrifice the weight.

After the sashes have been removed clean the jamb and rails that meet, remove the glazing bars and sash cords, and strip any paint off the sash stops using a utility knife. After the sashes have been put returned to their original positions, you can attach the stops using nails that are small enough to avoid puncturing the balancing weight.

To reassemble the sash, put the top sash into its track first, and then the lower sash. Verify that the sash stoppers and the frame are aligned properly. If necessary, reattach any beads that are parting. Finally, reattach the sash chain or cords and then re-attach the axles for the sash pulleys.