Sash Windows Repair and Replacement
Older sash windows may be plagued by a variety of issues, including draughts rattles, and inadequate insulation. A little bit of care can often bring them back to a high standard of performance.
First, remove the paint seal from the window stop using the knife of a utility. Then, remove the staff bead and remove the upper sash, taking off cords or chains and storing hardware in a bag marked.
Sealing

Sash windows can look stunning in older buildings, but they do need maintenance and are susceptible to issues such as wet rot, cracked putty, and draughts. It is possible to minimize energy loss and improve the efficiency of windows with sash by replacing them, repairing or sealing them.
Draughts are usually caused by gaps between the sash and frame. They can also lead to rattling and reduced sound-proofing. There are a variety of methods to limit air leaks within windows with sash, including sealing beads, specialty products and secondary glazing.
A common problem is a gap that exists between the top of the sash and the jamb frame, or between the bottom of the sill and the sash. This could cause moisture to leak into the wood, which can cause rotting and the growth of mold. Seal window repairs with silicone, polyurethane, or foam sealant.
Installing a new sash runner, or spring bronze may be necessary in the event that a gap blocks windows from opening and shutting smoothly. These bronze strips are tied or stapled to the lower sash edges to stop sideways rattling. They can be bought at DIY stores. Tubular vinyl weatherstripping can also be used, however it is prone to tear and may alter the look of your window.
When installing replacement runners for sash, it is important to measure the window opening. It is best to take measurements from the top of the sash to the horizontal line 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 help ensure a perfect fitting and better operation of the window.
In older structures, the gap between sash and frame is usually wider around the leading edge. It is possible to draught proof by a self-adhesive V-strips, but it is important to account for this when cutting and measuring the material.
A strip should be cut to the width of the sash. There should be an extra inch each side to allow to allow for movement. It should be cut square and positioned so that the ends are aligned to the angle of the window sill. Make sure to use stainless steel screws since brass may be rusty. Also, make sure you use a high quality silicone or polyurethane glue.
Refurbishment
The Sash window is a beautiful historical feature in many homes. However, despite their beauty these windows are prone to a range of issues. Common issues include rattling draughts or sticking. And rotting frames and meeting rails, broken glazing bars or faulty weights can add to the inconvenience. If you are experiencing any of these issues it's time to replace or repair your sash.
Refurbishment may be more expensive than replacing the sash, but it will bring back the appearance and function to the same level that it was in its original form. Refurbishment involves re-lining both the meeting rail and the sash box using traditional putty and fixing any damage caused by decay. It also includes 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). Finally, it's recommended to fit brush pile weather strips in order to minimize the rattling and increase insulation.
If you require a new sash, it can be made from like-for-like designs to match the frame of the previous one and preserve the character of your house. This is especially important for listed buildings where any modifications to windows require planning permission.
Check the metal tabs of the new window to the old sash prior to installing it (see below). If they're different shapes the new sash may not fit inside the window frame slots.
It is important to decide if you want to replace or repair a damaged window, as each will require a different level and amount of expertise. If a large portion of the glass in the sash is missing replacing it is the better option. If the glass is only damaged in a tiny area or a sill is beginning to rot and needs to be repaired, then a repair will be better.
Replacement
While many homeowners are keen to keep their old windows in good condition, deterioration could eventually cause issues such as draughts, rattles, or even broken glass. This is why replacing sash windows is often the only option to solve these issues. However, there are other ways to improve sash windows beyond just replacing them, including installing draught proofing as well as secondary glazing.
Think about the scope of the issue. It might not be necessary or necessary to replace windows. For instance, a fogging glass issue typically occurs within the sash and is usually able to be resolved without ripping out the whole frame. It is often possible to repair a weak seal using a couple of simple solutions, rather than cutting out the entire frame and replacing it.
Sash windows feature a complicated design with many moving parts. It can be difficult to fix some common problems like broken panes or sash cables that have snapped. Many homeowners do not want to remove the window frame in order to fix the issues. For these reasons, many choose to work with a specialist.
A specialist can help restore windows with sash back to their original glory or even bring them up to modern energy standards. This can include reconditioning the frames and installing secondary glazing, to avoid heat escaping through the window. It is also possible to add an edge strip for brush-piles to cut down on drafts and stop the window from squealing.
To begin the repair, take off the window stops. (The moldings that are in front of the lower glass). Then, loosen the staff and remove the lower window sash. Remove the cords and chains from both sides. Then take the sashweights out of the bottom of the cavity for weight. Store the equipment in a secure location. Soften any old filler or hardened putty by using a hot gun. Then 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 a sash window is an important one for the homeowner. While modern replacements provide numerous benefits, the original features of an older house provide authenticity and value to the property and are usually cheaper to fix than replacing them. Keeping them in good condition can also save energy costs. Sash windows can be susceptible to rattles and drafts. This can result in higher energy bills and even damage to the frame and the sash.
Sash windows can be difficult to open or close. The mechanism that slides can become sloppy or even draughty. It is best to leave the repair of a window sash to a professional because they require extensive removal. With the right tools and experience it is possible for you to repair the sash window that is old. Adam shows Jess the basics:
Getting the window to come apart begins by removing any security fittings that are in 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 a way that they can't be pulled back by the weights attached. It's time to remove the upper sash. The sash stops must be removed and a thin strip of wood that is used to hold the sash. Also, take off any paint-encrusted hardware. Pull the sash back to reveal the weight. It is a heavy iron or lead cylinder that is concealed in a cavity, and secured by a cord. To prevent the sash from falling into the void hit it with an hammer and then sacrifice the weight.
After the sashes are removed clean the jambs as well as rails that connect them. Remove the glazing bars as well as the cords of the sash. Then employing a utility blade take off any paint that is on the sash stop. Reattach the stops after the sashes have been reinstalled. Use nails that are not large enough to puncture the balancing weight.
Reassemble the sash by placing the upper sash on top of its track, followed by the lower sash. Make sure the sash stops are aligned properly with the frame, and then reconnect the beads that separate if required. Reattach the sash chains or cords and install the sash pulleys.