Other factors that affect the cost of sash windows
Apart from the obvious frame material and glazing options, there are also plenty of other choices you need to consider when configuring your perfect window. All of these will make a difference to the cost, so when you compare your prices, make sure you are comparing like-for-like to cover all of these.
Number of Windows: When ordering windows, due to installation there is economy at scale. The more you order, the cheaper each window will be. Only one window would be more expensive than the cost per window when installing ten windows.
Decorative glass: another option to consider is the inclusion of decorative glass in your windows. For example, privacy glass in bathrooms or overlooked rooms. Or, decorative patterns that echo Edwardian and Victorian styling.
Furniture and accessories: To complement Georgian styling, Georgian bars and sash horns can be applied to the frames. Also, think about the hooks, lifts and sash restrictors, which all will impact the final cost of the sash window.
Dual colour and finishes: for uPVC and wooden frames, there is an option of having the frame coloured differently on the outside and inside so you can match interiors and exteriors. uPVC also has an option of a woodgrain foil finish.
Sash box removal and window sill replacement?
Sash windows comprise the sliding sashes and a box frame they are contained within. The box houses the mechanics of the windows so they can slide up and down. Older windows can use a cord and pulley and others are spring loaded.
At Everest, our sash windows are made as a full set that includes the sashes and the box. We remove the old sash box and complete a professional install of the full unit.
Sash box removal is complex and more time consuming than the replacement of a casement window frame. This does increase the installation cost. When you do get a quote, check that full sash box removal and window sill replacement is included.
Some companies offer to replace the sash only part of your window. From experience, this is not the best option to take. As an investment, it is far better to have the full sash window and box replaced at the same time.
Boxes and frames warp or drop over time and trying to fit new sashes into an older box will cause issues in the installation. Your windows might stick and be difficult to slide open. They will also never reach the maximum energy efficiency or performance as the gaps between the frames and the box cannot be made perfect.
Wooden frames have a lifespan, so if your box is older than your sash, you will need to replace this at some point and it will be less cost effective to do this in two different projects. At Everest, we only recommend replacing a full unit of sash and box together for the longevity of the window, the energy efficiency and the performance.
Why Choose Sash Windows?
Sash windows are a beautiful addition to heritage homes and period properties. They also complement country properties and cottages, Georgian-style properties and Victorian properties. However, many original sash windows have been neglected over the years and either painted shut, or they have single glazed window panes that are cold and draughty.
New sash windows will give the front of your house a facelift and bring it back to life. They can also add value and make a property highly desirable for sale.
Sash windows are a popular choice for both period properties and heritage homes. They might be more expensive than casement window styles, but homeowners who install sash windows feel they are worth the investment and love the aesthetic.
Of course, sash windows are not for everyone, so think about these options to consider if they are right for you:
- Classic Style: The main choice for a sash window is the character that perfectly complements traditional styling and retains architectural integrity.
- Listed buildings and conservation areas: you might be limited in your choice because you live in a property with restrictions and have to replace windows like-for-like.
- Improved energy efficiency: historically sash windows have been made with single glazing and can be draughty rattling old frames. This is no longer the case and you can now have the styling with the efficiency as modern sash windows are designed with performance double glazed units to be draught-free with weatherproof seals that stop any draughts or rattling.
- Maintenance: wooden sash windows will require more maintenance, but the option of wood grain effect uPVC means you can benefit from a window that looks good but is very easy to maintain. Modern sash windows are not as complex to care for as old style windows.
- Improved Ventilation: Sash windows were designed to manage the airflow in traditional homes by opening the bottom and top sash to create a natural draw. This was useful in homes heated with coal fires. For anyone who prefers natural ventilation in their home, sash windows are perfect for easy control of airflow.
What should your sash windows quote include?
When researching the cost of your sash windows and comparing quotes from different companies, always make sure you compare like-for-like.
As mentioned above, look out for added extras from box sash removal, to furniture and a comparable glazed unit.
The cost of sash windows might not be as competitive as you think if your quote doesn’t cover all the essential parts of your manufacture and installation.
All of the following should be included as a minimum standard:
- A full technical survey of your property
- The sizes, styles and colours of the frames
- The materials to be used
- Type of glass to be used
- The window energy rating for the glass
- Window furniture and handles
- External window sills
- Full installation including all fixings, trims and sealants
- Disposal of your old windows
Most importantly, make sure you get a certificate to say your installer is registered with a competent person scheme, such as FENSA or Certass. This means that you have automatic approval for building regulations.
Do I Need to Replace My Sash Windows?
If your old sash windows are coming to the end of their life and need to be replaced, here are some signs to watch out for:
- Draughts and Poor Insulation: Does your window have a draught around the edges if you hold your hand around the frame edge. Does the frame rattle, or is there a cold spot in front of the window?
- Condensation: does the window have considerable condensation the leaves you constantly mopping up water? Or, if you already have double glazed sash windows, do you have condensation between the panes of glass? This indicates a failure in the glazed unit and it needs replacing.
- Difficulty Opening or Closing: Old sash windows can develop issues with their sliding mechanism, making them difficult to operate. Does your window stick, or is it permanently stuck closed?
- Visible Damage or Rot: If timber sash windows haven’t been well maintained, they will suffer from rot or decay over time. Does your window have mould around the frame, is part of the frame rotten, has the paint peeled away leaving exposed wood that has degraded?
Not all problems with sash windows require full replacement, some minor issues can be repaired. Such as broken sash cords, broken furniture or flaking paint. If this is the case, we recommend contacting a restoration specialist who can help replace some minor parts.
However, if your windows have multiple issues or are very old, replacement often proves more cost-effective than repeated repairs.
Replacing your sash windows ensures your home remains energy-efficient and visually appealing.