Sash Windows Repair and Replacement

Sash windows older than 20 years may have various issues, including draughts and rattles. They may also be inefficiently insulated. A little bit of care can often restore them to a high standard of performance.

First, cut off the paint seal using an utility knife. Then, take off the staff bead and pull out the upper sash and remove the chains or cords and storing the hardware in a labeled bag.

Sealing

Sash windows are gorgeous in older buildings, however they require care. They are susceptible to issues like wet-rot, cracked putty and draughts. It is possible to minimize energy loss and increase the efficiency of windows made of sash by replacing the windows, repairing or sealing them.

The gaps between sash and frame are the primary source of draughts. They can also trigger noise and rattling, which can reduce soundproofing. There are a variety of methods to stop air leaks from windows with sash, including sealing beads, specialist products and secondary glazing.

A gap between the top and bottom of the sash and the jamb frame, is an issue that is common. This can cause moisture to leak into the wood, which can cause rotting and the growth of mold. Seal the gaps with silicone, polyurethane, or foam sealant.

Installing new sash runner or spring bronze could be necessary when a gap is preventing the windows from opening and shutting effortlessly. These are strips of bronze that are stapled or nailed into the edges of the lower sash to prevent sideways rattle, and Sash Windows Repair they can be purchased from DIY stores. Weatherstripping made of tubular vinyl can also be used, but it tends to rip and can alter the appearance of your window.

It is essential to determine the size of the window opening prior to installing a new sash runners. It is best to take measurements from the top of the sash up to the horizontal centerline of the rails that meet, and from the bottom of the sash down to the sill. These measurements can be transferred to the new runners, which will help ensure a perfect fit and better operation of the window.

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

A strip must be cut to the height of the sash. There should be an additional inch to allow for movement. It should be trimmed square and placed in a way that the ends are aligned to the angle of the window sill. Use stainless steel screws as brass may get rusty. Also, make sure to use the highest quality polyurethane or silicone glue.

Refurbishment

The sash is a stunning historical feature of a lot of homes. They are beautiful, but they can be susceptible to problems. Rattling, draughts, sticking or leaks are all common problems. Also, rotting frames, meeting rails, broken glass bars, or damaged weights could create a mess. If you experience any of these issues, it is time to replace or repair your sash.

Refurbishment is more costly than replacing the sash, however, it can bring back the appearance and function to the same level that it was in its original form. It involves lining the meeting rail and sash box using traditional putty and repairing any rot damage. Re-painting of the timber frame is also included, as well as the re-glazing process using 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 prevent rattling.

If the need for a new sash arises, it can be made using similar designs to the frame that was previously used and keep the style of your home's historic design. This is particularly important for listed properties where any changes to the windows will require planning permission.

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

It is crucial to determine whether to replace or repair the damaged window, since each option will require a different level and cost of knowledge. If a significant portion of the glass in a sash is missing then replacing it will be an option. However in the event that the glass has been damaged in one small section or a sill has been rotting then a repair will be the better option.

Replacement

While a lot of homeowners are eager to keep their old windows in good condition, deterioration could eventually cause problems such as rattles, draughts, or even broken glass. This is why it's often the only solution to these problems. There are other options to improve sash window performance rather than replacing them. These include installing secondary glazing and draught-proofing.

Consider the extent of the issue. It might not be necessary or even suitable to replace the window. For instance, a foggy glass issue usually occurs within the sash itself and can usually be solved without having to tear out the entire frame. It is often possible to fix a weak seal with a few simple solutions, rather than cutting out the entire frame and replacing it.

Sash windows feature a complicated design with many moving parts. This is why it can be difficult to solve common issues such as snapped sash cords or broken panes. Many homeowners do not want to disassemble the window frame in order to fix these problems. Because of this, many opt to hire an expert.

Specialists can restore sash window frames back to their original glory or make them more up-to-date with modern energy standards. This could include reconditioning the frames and fitting secondary glazing, which will stop heat escaping through the window. It is also possible to install a brush pile strip to stop the rattling and decrease drafts.

To begin a repair project, remove the window stops (the moldings on the front of the lower sash). Then, loosen the staff bead and pull out the lower sash. Take off the chains or cords that are on both sides. Finally, remove the sash weights from the bottom of the cavity and remove them. Store the hardware in a secure place. Heat gun to soften old, hardened filler or putty. Scrape it away with the blade of a putty. Reassemble the window repairs, reattach the hardware and then lubricate the pulley axles with silicone or Teflon spray. Install the parting beads and reinstall the upper sash.

Repair

The choice of replacing or repairing a sash window is a major one for homeowners. Modern replacements are beneficial in many ways however, the original features in an older house can add character and value. They are also cheaper to repair instead of replacing. Maintaining them in good condition can reduce the cost of energy. Sash windows can be susceptible to rattles and drafts. This can result in higher energy bills and even damage to the frame and sash.

Sash windows are notoriously difficult to open and close as the traditional sliding mechanism may become displaced from its track, or even draughty. Repairing a sash window involves extensive dismantling of the frame of the window and is best left to the professionals. With the right tools and knowledge, it is possible to fix old sash windows yourself. Adam shows Jess the basics:

Remove any security fittings in front of the lower window sash. Then, remove the staff bead, then remove the bottom sash. Then, pull out the cords or chains on both sides and tie them to stop them from being pulled back into the frame by the weights that are attached. It's time to take off the upper sash. Take out the sash stops and a thin wood strip that holds the sash. Also, remove any paint-encrusted hardware. The sash can be pulled back to reveal the weight balancing, which is a large iron cylinder or lead that is enclosed in a hidden cavity and held by rope. To stop the sash from falling into the void, you must pierce it with a nail and then let the weight go.

After the sashes have been removed clean the jambs and meet rails. Remove the glazing bars and cords for the sash. Then using a utility knife take off any paint that is on the sash stop. After the sashes have been put back in place, you can reattach the stops using nails that are small enough to prevent damaging the balancing weight.

Reassemble the sash by inserting the upper sash first into its track, then the lower sash. Verify that the sash stoppers and the frame are aligned correctly. If necessary, reattach any beads used for parting. Then, reconnect the sash chains or cords and then re-attach the sash pulley axles.