Sash Windows Repair
Sash windows combine modern technology with a traditional appearance. These windows are completely draught proof and need zero maintenance, other than cleaning them weekly.
Inadequate maintenance can lead to the frame sagging, loss of putties to glazing, and rotting of the pulley stile and outer lining at the junction with the cill. These issues are all capable of being repaired on site or in an workshop.
Replacement of the sash cords
A lack of regular maintenance can cause rattles, draughts and issues with the opening and closing of a window. It can also cause structural movements in the frame and deform sashes. The damage can cause the putty to break down and the paint to peel, allowing water in the wood, causing decay. Sash cords may also become stiff and more prone to breakage. Many of these issues can be fixed.
The wood used in the old windows with sash is more dense than the modern replacements, which can make it last for many centuries. Like all materials that is not regularly maintained, it will deteriorate.
To keep windows in sash, the cords and wood must be well waxed. The sash cords could be made of cotton, jute or nylon. Metal chains can be used to replace them. Ideally, the new cords should be inserted over the pulley wheels with a parting bead to create a separation between the two sashes. The cords are then tied to the weights and counterweights are adjusted to balance the sashes.
To avoid damage, it is recommended to replace the pulleys with ones that are comparable to the original. Weights can be made of iron, brass, or a combination. The replacements may be slightly larger than the originals, and can cause issues in operation. The sash needs to be opened in the correct position before replacing the counterweights. It is important to be able to shut the window without closing it.
Ironmongery can be used to enhance security, make a sash window draft-proof, while still allowing for ventilation and cleaning. Included are sashlocks, dual screws and anti-lift devices. These are relatively inexpensive and can be fitted to a traditional window, while retaining its historic character. They are typically less visible than more intrusive security fittings such as the sash-window chain or catcher.
Replacement of the sashweights
A sash window is a double-glazed sliding window that can be raised or lowered to open and close the window. It is held in place by pulleys or sash cords and a parting bead. To ensure that the window stays in its place, the sash cords should be in good working condition. If a sash gets too heavy or sagging, it can cause broken sash cords or loose beading. Regular maintenance and repair is the best way to keep a sash in good working condition.
In many cases, older windows can be restored without removing them from the frame. In these instances, the casing and sash can be taken apart in an assembly line or joiner's workshop and then repaired. This repair method preserves the original fabric and avoids problems like draughts and decay within the frame. The damaged timber is strengthened by using a resin consolidant or filler to enable the window to be fully functional once again.
Wood sash were made from slow-growing deal (pine) up to the late eighteenth century and are generally more dense than modern wood, making them more durable. Window dimensions were also standardized by the end of the 18th century. Local window companies provide an Boston Pattern sash line that will fit most old windows. Replacement sash window sizes that are not in line with these standards could require custom-sized window framing, which could detract from the historic look. Similarly, replacement ironmongery should be selected with care to ensure that the new products function well while retaining the historical accuracy. This can be a challenge, because many of the fasteners are hidden by layers or varnish on the sash window. Removing these layers of paint will reveal the intricate engineering and exquisite craftsmanship that was used to create the windows originally.
Replacement of sash catches
A sash window is a classic type of window that is made up of glass panes that move inside the frame. It is usually divided into two parts: the top and bottom sashes. Its movement is triggered by cords and weights or, in recent times, spiral balances. The sashes can be opened by sliding them up and down, according to the design of the window. Handles are commonly used to keep them in place at the mid rail.
If a sash becomes damaged, it can create problems for your home, including water leaks and difficulty moving windows up and down. You should know when to replace a sash, so that you can make an informed decision.
If you are looking for signs of decay, you can determine if the window sash requires to be replaced. These may include mildew, mold, or scratches in the wood. You may also feel the wood for moisture which indicates that it's time to replace the sash.
The components of the sash may be damaged through improper usage or lack maintenance. Water can get in through holes that are drilled into the frame, allowing cable entry. This can cause rot. Paint loss, a damaged cord or a sash that isn't fit properly are all indications that a sash must be replaced.
Many homeowners are worried about the expense of replacing their sash windows, however, it is crucial to understand how much your sash window is worth. It is often possible to salvage the timber to repair or change the sash rather than tearing out the window and re-starting it. This could help you save money while maintaining your historic windows. To avoid costly mistakes it is essential to seek out a reputable professional prior to making any repairs or replacing your windows. They can also provide advice on the best approach for your home depending on your specific requirements and budget. They can provide you with an estimate of the cost cheap windows cambridge it will cost to repair or replace the sash.
Replacement of the sash pulleys
Sash windows have a complex delicate mechanism that requires regular maintenance and repairs. Without it, they could be damaged and difficult operate. They can be noisy and unsafe, and could can pose a health and fire risk. However, many older sash windows can be restored to their former glory with low cost and with little intrusion to the structure of a building. They can be draught-proofed, secured and conform to the requirements of insurance. They can be preserved for future generations.
Traditional timber frames are susceptible to damage from decay and weathering. The cill, or bottom section of the window frame, is particularly vulnerable to water penetration. It can be strengthened using metal angle brackets, which can be fitted over the top of the existing cill and be incorporated into the masonry sub-cill. Cills that are new can be constructed from a sturdy wood like oak. A careful insertion of new timber is necessary to ensure that as much of the original fabric is retained as possible.
In the 18th century Sash windows were mostly milled from slow-grown deal (pine) and in some rare instances, oak. They were designed to last for a long time, and are considered to be an important part of historic buildings. Repairing and replacing these sash windows should be done using the same type of wood to prevent an unidirectional movement between the old and new components.
Ironmongery is vital to the operation of double-glazed windows with sash. This includes a brass or hardwood pulley, as well as cast iron weights or lead as well as shutter hinges and knobs. All of these should be kept in good condition and repaired or replaced when required. They are able to help keep the casement and sash in the right position and also prevent it from falling or sticking. They can also be used to open the sash to allow ventilation and cleaning. A range of security fittings are also available for sash windows that are typically non-detracting and will not compromise the appearance of a historic home. These include height restrainers, anti-lift devices and dual screws.