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Sash Windows Repair and Replacement

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

First, scrape off the paint seal from the window stop with a 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 a label.

Sealing

Sash windows are beautiful in older buildings, however they require maintenance. They are susceptible to issues like wet-rot, cracked putty, and draughts. Repair, sealing or replacement of the windows in sash is a great way to reduce these problems and improve energy efficiency.

Draughts are usually caused by gaps between the sash and the frame. They can also lead to noise and rattling, which can reduce soundproofing. Sealing beads, specialty products, and secondary glazing can all be used to reduce the air leakage in a Sash.

A common problem is a gap between the top of the sash and the jamb frame or between the bottom of the sill and the sash. This can cause moisture leaking in, rotting of the wood and the growth of mould. The gap can be sealed with caulking made of polyurethane or silicone or foam sealant.

Installing a new sash runner, or spring bronze might be necessary when a gap is preventing the windows from closing and opening smoothly. These are bronze strips that are stapled or nailed to the edges of the lower sash to prevent sideways rattle. They can be purchased from DIY stores. Tubular weatherstripping also can be used, but it tends to rip and can alter the appearance of your window.

When installing replacement sash runners It is crucial to measure the window opening. It is recommended to measure from the top of the sash to the horizontal centerline of the rail that connects it and from the bottom of the sash to the sill. These measurements can be transferred to new runners that will ensure an improved fit and performance of the window.

In older structures the gap between the sash and frame is usually larger around the leading edge. It is possible to draught-proof it using a strip of V-strip which is self-adhesive. However, it is important to take this into consideration when measuring and cutting the material.

A strip should be cut to the length of the sash, with an extra inch on each side to allow for movement. It should be cut square and placed so that the ends are matched to the angle of the window sill. Use stainless steel screws as brass can get rusty. Also, use a high quality polyurethane or silicone glue.

Refurbishment

The sash is a beautiful historical feature of a lot of homes. They are beautiful however they are prone to problems. The most frequent issues are rattling, stickiness or draughts. And rotting frames and connecting rails, broken glazing bars or weights that are not working properly can add to the inconvenience. When these problems occur it's time to consider a sash repair or replacement.

Refurbishment is a more expensive option than simply replacing the sash itself but it can improve the appearance and functionality of your sash window to as good if not superior to its original state. It involves re-lining the meeting rail and sash box with traditional putty and fixing any rot damage. Re-painting the frame of the timber 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 install brush pile weather strips in order to minimize the rattling and increase insulation.

If a replacement sash required, it can be made with the same design to match your old frame. This will help preserve the style and character of your home. This is particularly important for listed buildings where any modifications to windows need planning permission.

Before putting the new window in place It is recommended to check the metal tabs against the tabs on the old sash (see below). If they're different sizes and sizes, the new sash will not fit in the window frame slots.

It is important to decide if you want to repair or replace windows that are damaged, as each option will require a different level and cost of expertise. For instance, if a sash window repair near me has a large piece of glass missing then replacement is the best choice. However in the event that the glass is damaged in one small section or a sill has begun decaying, a repair may be more appropriate.