Sash Windows Repair and Replacement

Older sash windows may be plagued by a variety of problems including draughts, rattles and poor insulation. With a little attention they can be restored to a higher level of performance.

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

Sealing

Sash windows are beautiful in older buildings, but they require maintenance. They can be affected by issues such as wet-rot, cracked putty, and draughts. It is possible to decrease energy loss and improve the efficiency of sash windows by replacing the windows, repairing or sealing them.

The gaps between sash frame are the main source of draughts. They can also lead to rattling and reduced sound-proofing. Various methods can be used to limit air leaks within the sash window, such as sealing beads, special 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 sill and the sash. This can result in water leaking into the wood and rotting of the wood and the growth of mould. Seal the gap with silicone, polyurethane, or foam sealant.

If a gap is preventing the windows from opening and closing easily, it could be necessary to replace spring bronze or sash runners. These are bronze strips that are stapled or nailed onto the edges of the lower sash to stop sideways rattle. They can be purchased from 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 sash runners it is essential to measure the entire width of the window opening. It is recommended to take measurements from the top of the sash up to the horizontal centerline of the rail that connects it, and from the bottom of the sash down to the sill. These measurements can then be transferred to new runners, which will ensure a better fit and operation of the window.

In older structures the gap between sash and frame is usually larger around the leading edge. It can be draught-proofed with a strip of self-adhesive V-strip, but it is essential to consider this when cutting and measuring the material.

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

Refurbishment

The sash is a beautiful, historical feature of many homes. They are beautiful but they can also be susceptible to problems. Rattling, draughts, sticking or leaks are all common problems. Frames that are rotting and rails that meet, as well as broken glazing bars, damaged weights or rotten frames can cause issues. When these issues arise, it's time to consider repairs or replacements to your sash.

Refurbishment may be more expensive than replacing the sash, but it will bring back the appearance and function to the same standard that it was in its original form. Refurbishment involves lining the meeting rail as well as the sash box using traditional putty and fixing any damage caused by decay. Re-painting the frame of the timber is also included, as is double glazing repair 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). Finally, it's recommended to install brush pile weather strips to reduce the rattling and uPVC repair increase insulation.

If a replacement sash is required it can be constructed with the same design to match your existing frame. This will help preserve the traditional style of your home. This is especially important for buildings that are listed, as any modifications to windows need planning permission.

Check the metal tabs of the new window to the old sash before installing it (see below). If they're different sizes, the new sash will not fit into the window frame slots.

When a window is damaged it's essential to choose between repair or replacement because each kind of work will require a different degree of expertise and price. If a significant portion of the glass in a sash is missing then replacing it will be the better alternative. However, if the glass has been damaged in a small area or a sill has begun decaying, a repair may be the better option.

Replacement

Many homeowners want to keep their old sash windows in good shape, but the deterioration of the window will eventually cause issues like rattles or draughts. Broken glass can also occur. This is why replacing sash windows is often the only option to solve these issues. But there are ways to improve the sash windows that go beyond replacing them, like installing draughtproofing and secondary glazing.

It is crucial to assess the extent of a issue, since it might not be appropriate or even feasible to replace a complete window. A foggy glass problem for instance is typically caused by the sash, and uPVC repair can be fixed without tearing out the entire frame. It is typically possible to fix a weak seal by making a few easy solutions, rather than cutting out the entire frame and replacing it.

Sash windows are a complicated design with a lot of moving parts. It can be challenging to fix common problems such as broken panes, or snapped sash cable. Solving these issues usually requires dismantling the window frame, which isn't something that most homeowners want to take on themselves. Because of this, many choose to work with a professional.

A specialist can assist in restoring sash windows back to their original glory or even bring them up to current energy standards. This could include reconditioning the frames and fitting secondary glazing, to avoid heat loss out of the window. You can also install a brush-pile strip in order to minimize drafts and prevent the window from squealing.

To start a Upvc repair project start by removing the window stops (the moldings in front of the lower sash). Then loosen the staff and pull the lower window sash. Remove the chains or cords on both sides. Finally, remove the sash weights from the bottom of the cavity and take them off. Keep the hardware in a secure position. Soften any old filler or hardened putty with a heat gun and scrape it away with the help of a putty knife. Reassemble the window doctor, attach the hardware and lubricate pulley axles by using silicone or Teflon spray. Reinstall the parting beads and reinstall the upper part of the sash.

Repair

It is essential for the homeowner to decide whether to repair or replace their sash windows. Modern replacements are beneficial in many ways however, the original features of an older home can add character and value. They are also cheaper to repair instead of replacing. Maintaining them in good condition will also help you save money on energy. Sash windows are vulnerable to drafts, rattles, and condensation. These issues can lead to higher costs for energy and damage to the frame and sash.

Sash windows can be difficult to open and close. The mechanism for sliding could become dislodged or draughty. It is best to leave the repair of sash windows to professionals since it requires extensive removal. With the right tools and experience it's possible to fix an the sash window that is old. Adam shows Jess how to begin:

Getting the window to come apart starts with the removal of any security fittings that are in front of the lower sash. Then, remove the staff bead and remove the bottom sash. Take the chains and cords from both sides, and knot them so that they cannot be pulled back by the weights attached. The next step is to take out the upper sash. Take out the sash stops, a thin vertical strip of wood that holds the sash. Also, remove any paint-encrusted hardware. The sash can be pulled back to reveal the balancing weight which is a heavy iron cylinder or lead that is enclosed in a concealed cavity and secured by rope. To stop the sash from falling into the void pierce it with a nail and sacrifice the weight.

After the sashes have been removed Clean the jamb and rails that meet, remove the glazing cords and sash bars, and strip any paint from the sash stops using an utility knife. Reattach the stops after the sashes have been put back in place. Use nails that are small enough not to damage the balancing weight.

To reassemble the sash place the top sash onto its track first, and then the lower sash. Check that the sash stops and the frame are aligned properly. If necessary, reattach any beads that are parting. Reattach the sash cords or chains and install the sash pulleys.