How do I Know if it is Time to Replace my Sash Windows?

Original sash windows in a period property are a beautiful thing. However, even with careful maintenance and repair, original windows will be inefficient and problematic. If you have old sash windows in your property, here are some of the indicators that let you know it may be time for an upgrade.

Sash windows won’t open

If your sash window won’t open any more, it may be that the frame is painted shut, or it may be a more serious problem with the frame or weight and cord system. If you request a free no-obligation survey from the experts at Ventrolla, we will be able to advise you if the problem can be fixed, or if it’s time for a new window.

The glass is cracked or damaged

It’s pretty obvious if glass is the problem. It’s also possible to get a glazier to replace the damaged pane of glass. However, this won’t help with improving the efficiency of the glazing.

smashed sash windows


The window frames are damaged or rotten

Wooden frames can absorb moisture. Over time this will cause the frames to rot. Try pushing down on the bottom part of the frame with your finger or a pencil. Does the frame feel spongey or crumbly? If so, it’s time to replace.

The windows are draughty

Old windows have gaps and leaks that let in cold air. Over time, the frame of a sash window may become warped or deteriorated, causing gaps to form between the window and the frame. These gaps can allow cold air to enter the room and warm air to escape. If you can feel cold air blowing into the room, it may be time to replace.

Moisture pools inside the window

Even modern windows may suffer with condensation if the weather outside is cold and the air in the house is damp. However, if there are gaps or leaks in the window frame or sealant, water may enter the interior of the window and accumulate inside, leading to pools of water. If you have pools of water appearing inside the window, then you may need to upgrade.

Cleaning water condensation on window

The good news is that if your windows do need replacing, you don’t have to go with a soulless uPVC design common in modern houses. Using companies like Ventrolla, you can have beautiful wooden sash windows designed bespoke to your property that will look the part, but be incredibly efficient.

Modern glass and frame technology ensure that you have the best of both worlds with great looks and great thermal efficiency.




How can we help at Ventrolla?

At Ventrolla, we can restore your sash windows to their original condition by carefully renovating or replacing damaged or worn components of your window, to preserve the original character and charm of your windows. If you’d like more information, please contact us.


FAQs: How do I know if it is time to replace or renovate my sash windows?

Q: How do I know if my sash windows need replacing or renovating?

A: There are several signs that your sash windows may need replacing or renovating, including rotting or damaged frames, difficulty opening or closing, draughts or leaks, and poor energy efficiency. If your windows are more than 20 years old, it may also be worth considering replacement.

Q: Should I replace or renovate all my sash windows at once?

A: It is not necessary to replace or renovate all your sash windows at once, although it may be more cost-effective to do so. If you have specific windows that are in poor condition or need upgrading, you can replace or renovate those first and then consider replacing or renovating the others at a later stage.

Q: What are the benefits of replacing or renovating my sash windows?

A: The benefits of replacing or renovating sash windows include improved energy efficiency, better security, enhanced aesthetic appeal, and increased property value. New and renovated sash windows can also provide better sound insulation and reduce external noise.

Q: How can I maintain my sash windows to prolong their lifespan?

A: Regular maintenance and upkeep can help prolong the lifespan of your sash windows. This may involve cleaning the windows and frames, lubricating the pulleys and sash cords, repairing any damage or rot, and draught-proofing as needed. It is also important to address any issues promptly before they become more extensive and costly to fix.