14 Misconceptions Commonly Held About Sash Windows Repair

DWQA QuestionsCategory: Questions14 Misconceptions Commonly Held About Sash Windows Repair
Vicente Farley asked 2 months ago

Sash Windows Repair and Replacement

Sash windows older than 20 years can have many issues such as rattles and draughts. They could also be inefficiently insulated. With a little effort, they can be restored to a high level of performance.

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


Sash windows are beautiful in older buildings, but they require care. They can be affected by problems like wet-rot cracked putty and draughts. It is possible to minimize energy loss and increase the efficiency of sash windows by replacing or repairing them, or sealing them.

Draughts are mainly caused by gaps between the sash and frame. They can also cause noise reduction and rattle. Sealing beads, specialist products, and secondary glazing may all be used to minimize the air leakage in the shutter.

A common problem 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 into the wood, which can cause rotting and the growth of mold. The gap can be filled with caulking made of polyurethane or silicone or foam sealant.

Installing new sash runner or spring bronze could be required in the event that a gap blocks the windows from opening and shutting effortlessly. These strips of bronze are tied or stapled to the sash’s lower edges to prevent sideways rattling. They are available at DIY stores. Weatherstripping made of tubular vinyl can also be used, but it tends to rip and can alter the appearance of your window.

When replacing sash runners It is crucial to measure the window opening. It is recommended to take measurements from the top of sash up to the horizontal centerline on the rail of the meeting and from the bottom sash down to the sill. These measurements can later be transferred to new runners that will ensure the best fit and function of the window.

In older structures there is a greater gap between the sash as well as the frame at the leading edge. It is possible to draught-proof it using a strip of V-strip which is self-adhesive. However it is crucial to consider this when measuring and cutting material.

The strip should be cut at the top of the sash and with an inch more on each side to allow movement. It should be trimmed squarely and positioned to match the angle of the sill. Use stainless steel screws since brass will get rusty. Also, use a high quality polyurethane or silicone glue.


The Sash window is a beautiful historical feature in many homes. But despite their beauty, windows like sash windows can be prone to a myriad of issues. Common problems include rattling, stickiness or draughts. And rotting frames and connecting rails, broken glazing bars, or damaged weights could create a mess. If you encounter any of these issues, it is time to replace or repair your sash.

Refurbishment is a more expensive alternative than replacing the sash itself but it can bring back the appearance and function of your sash window as good if not better than its original state. Refurbishment involves the lining of the meeting rail as well as the sash box with traditional putty and fixing any damage caused by the rot. It also includes re-painting the frame of timber 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). Finally, it’s recommended to install brush pile weather strips in order to minimize rattle and increase insulation.

If a replacement sash is needed it can be constructed using the same style to match your existing frame. This will maintain the traditional style of your property. This is particularly important for listed buildings where any modifications to windows will require 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 may not fit into the slots of the window frame.

It is important to decide if you want to replace or repair a damaged window, as each will require a different level and cost of expertise. For instance when a sash window has a large piece of glass that is missing, then replacing it is the best choice. But, if the glass has been damaged in a tiny section or a sill has been rotting then a repair will be the better option.


While a lot of homeowners are eager to keep their old sash windows in good working condition, deterioration could eventually cause issues such as rattles, draughts, or even broken glass. This is why replacing them is often the only solution to these problems. But there are ways to improve sash windows beyond just replacing them, like installing draught proofing as well as secondary glazing.

Think about the scope of the issue. It might not be necessary or even suitable to replace a window. A foggy glass problem for instance, is usually caused by the sash, and can be addressed without having to tear out the entire frame. It is often possible to fix a weak seal by making a few easy fixes, rather than tearing out the entire frame and replacing it.

Sash windows are quite complex in design and have many moving parts. This is why it can be a challenge to fix common issues, like snapped sash cords or broken panes. The majority of homeowners don’t want take apart the window frame in order to repair these issues. Many homeowners decide to hire a specialist for these reasons.

A specialist can assist in restoring windows with sash back to their original glory or even bring them up to modern energy standards. This can include reconditioning frames and http://urlku.info/windowrepair680649 fitting secondary glass to stop heat from escaping through the window. It is also possible to install a brush pile strip, to stop the rattling and decrease drafts.

To start a repair project start by removing the window stops (the moldings on the front of the lower sash). Then you can loosen the staff, and remove the lower window sash. Take off the chains or cords on both sides. Lastly, remove the sashweights from the bottom weight cavity. Store the equipment in a secure location. The heat gun will soften hardened filler or putty. Scrape it away with a putty blade. Reassemble the window. Reattach the hardware. Lubricate the pulleys by using Teflon or silicone spray. Reinstall the parting bead and install the upper sash.

door repair

The choice of replacing or door repair repairing windows with sash is an important one for the homeowner. While modern replacements provide numerous benefits, the original features of an older house give personality and value to the property and are often cheaper to repair than replacing them. Maintaining them in good shape can also save energy costs. Sash windows can be prone to drafts and rattles. This can lead to higher energy bills and even damage to the frame and sash.

Sash windows are notoriously difficult to close and open and the standard sliding mechanism can become dislodged from its track, or even draughty. It is recommended to leave the repair of a window with sash to a specialist, as it requires a lot of removal. But, with the right tools and knowledge, it is possible to repair old windows with sash yourself. Adam shows Jess the basics:

Remove any security fittings behind the lower window sash. Then, remove the staff bead. Then, take out the sash at the bottom. Remove the chains and cords from both sides, and tie them in a way that they can’t be pulled back by the weights attached. It’s now time to remove the upper sash. Unscrew the sash stoppers (a thin vertical strip of wood that is used to hold the sash) and remove any paint-encrusted hardware. The sash should be pulled back to reveal the weight. It is a heavy iron or lead cylinder that is hidden inside a cavity and supported by a cord. To stop the sash from falling into the void, you must pierce it with a nail and then let the weight go.

When the sashes are untied, clean out the jamb and meet rails, remove the glazing bars and sash cords, and remove any paint off the sash stops with a utility knife. When the sashes are back in place, reattach the stops using nails that are small enough to avoid cutting the weight that is balancing.

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