When considering a window repair or replacement glass for your broken or misted glass, you want to ensure the space is fit and ready to be measured. Windows are essential to making a house a home, so it’s important to know how to get them measured up correctly.
Before we start, it’s key to mention that this guide goes over measuring replacement glass. If you need a new window, whether that be for a new build, an extension or as a replacement, get in contact with us. Our experienced window fitters are specialists in all forms of window and glass installation and repairs.
You may be wondering where to even begin measuring your existing broken or misted glass. We have listed some handy tips to use when preparing for a window glass replacement and how to get the measurements spot on.
It’s also key to add that if you believe that the broken glass in your windows poses a security risk or is seriously impacting heating for your home, you can contact us for an emergency boarding up service to cover the space whilst your replacement glass is being cut and prepared.
If your double-glazed or triple-glazed windows have misted up, this means the airtight seal around the window has failed, and the gas inside has escaped. A damaged window like this will continue to mist up until replaced. A window which is damaged in this way can cause serious damage to keeping your home insulated.

If your window is cracked, it can cause the airtight nature of the window to fail. If the crack in your window is small, it may be possible to repair the pane using a solvent-based adhesive such as epoxy. However, in the circumstance that your window has a larger crack or other serious damage, your only option may be to board up the window and eventually have it replaced.

Replacing the glass in your windows with a double glazed unit will greatly improve the energy efficiency of your home. Old or poorly fitted windows are one of the main ways that heat can escape your home, which will inevitably increase energy consumption, and with skyrocketing energy prices – it’s vital that your home is as energy efficient as possible.

Sure4Doors will professionally take all measurements for you before ordering and installing the glass, but if you are after a quick quote to see if a glass replacement is worthwhile, here are some tips on how to take measurements as accurately as possible.
Firstly, measure the glass pane only, not the frame. You are only replacing the glass, and the wooden or uPVC frame should stay as it is. If you think you need to replace the frame as well, you can learn more about replacing your window frame here.
A great place to start is ensuring you are taking your measurements using metric, not imperial. To get the most refined accuracy, measure in millimetres rather than inches. Glass manufacturers create their panes to very specific measurements using millimetres, as inches simply can’t provide a precise enough measurement.
Measuring the glass both side to side and up and down will give the manufacturer good enough measurements to gauge the space in which the final glass will be fitted. This will help Sure4Doors give you an accurate quote. Don’t worry too much about your measurements being perfect, as we will make sure an expert is sent out to get the final, precise measurements before your installation.
Windows are crucial to the security of your home and require careful attention to ensure they stay in working order. Following the above advice, you should be able to measure for replacement glass panes correctly and accurately.
For emergency boarding up services, to find out more about our new and replacement glass and window installation services or to receive a free, no-obligation quote, please contact us or visit our comprehensive replacement glass guide.