How Long Does It Take to Install Double-Glazed Windows?


Installing double-glazed windows is a popular home improvement project that offers homeowners lots of benefits. Not only does it improve the energy efficiency of your home, it also reduces noise pollution, and increases its overall value. Some homeowners worry about taking on this type of project, in case it takes a long time to complete a project like this.

However, the installation time of double-glazed windows can vary depending on several factors. These factors include:

  • The size and number of windows.
  • The type of window frames.
  • The difficulty of the installation process.

Now, we will take a look at how these factors can affect the installation time of your new windows.

We will also provide an estimate of how long the installation process typically takes. This will help homeowners, like you, plan the installation, and ensure preparation in advance for the process. 

At Brackenwood, we understand that every home is unique. We offer a wide range of options to meet the specific needs of each homeowner. 

We believe that no two homes are alike. Therefore, we are always on hand from the very start to guide you through every step of the process. This includes planning and design.  

We install high-quality, double-glazed windows finished with minimal disruption to you and your family.

We will discover how long a double glazing installation will take, and look at the factors that could influence the installation time. Finally, we will discuss the advantages of choosing Brackenwood Windows and Doors for your double glazing needs.


Factors Affecting Installation Time

The installation time of double-glazed windows can vary depending on several factors. Consider these factors when installing new windows:

  • Size and number of windows.
  • Type of frame and glass.
  • Condition of existing window frames.
  • Experience of the installation team. 

The size and number of windows can significantly impact the installation time. Installing a single window will take less time than installing multiple windows, for example. Similarly, larger windows will take longer to install than smaller ones. 

Using a certain type of glass or frame can affect the length of the installation. Installing uPVC frames can be much faster, for example,  than the time it takes to install Timber frames. Triple-glazed windows take longer to install than double-glazed windows, too.

You may also require an installation to a Listed or period property, so a sensitive renovation must take place. 

The condition of the existing window frames is another factor that can impact the installation time. We may also need to repair or replace your windows if they are in poor condition. Old windows may have warping or damage to the frames if the previous installation was poor.

Before the installation of your new windows, we will need to repair or replace the frames. This can also add time to the installation process.



The experience of the installation team is also very important. A team with more experience will be able to complete the installation more quickly and efficiently than a less experienced team. That is why at Brackenwood, all our installation experts are Fenestration Self-Assessment Scheme (FENSA)-approved.

The FENSA scheme supports our installation team. We are qualified to perform installations to the highest standard. We use materials that are certified by the British Standards Institute (BSI) and that are up to date. (Look for the kitemark on your new installation.)

At Brackenwood, our team follows safety guidelines when installing new windows and doors. They will also keep your space tidy, working efficiently to make sure your home stays clean.

They will also make sure the working area near them is safe for you and your family. However, it is always a good idea to remain clear of the installation site until the job is complete.


Weather Conditions

Additionally, other factors, such as weather conditions and access to the installation site can also impact the installation time. Your installation may be put back if the weather takes a turn for the worse. Also, if the installation site is hard to get to, it may take more time to finish.

This is for the safety of all involved. It is important to our team that your windows are installed correctly. This ensures maximum energy efficiency and proper operation of your new windows or doors.

The installation time of double-glazed windows can vary depending on several factors. Working with an experienced installation team, like Brackenwood, can help homeowners ensure their window installation is done correctly. Brackenwood will provide advice on choosing the right materials to ensure the installation is completed quickly and effectively. 


Typical Installation Time

Installation of double-glazed windows can take an average of several hours to three days. However, this timeframe can vary depending on the factors mentioned above.

Installation teams may need to remove and replace complex existing window frames. This can lead to an extended installation process. It can add extra time to the installation. 

It is important to note that the installation process is not just about fitting the windows themselves. The installation team will also need to ensure that the surrounding area is ready for the new windows.

  • Remove any old sealant or debris.
  • Ensure the new windows have proper insulation.
  • Confirm that the new windows are sealed.

Our team may need to make adjustments to window frames or walls. This is to ensure your new windows fit correctly. It is important to get window installation right, as this adds extra time to the process. Accurate installation ensures safety, energy efficiency, and a pleasing appearance.

Installation of double-glazed windows can take time. However, it is an investment in your home for the long-term. Therefore, it is important to remember to choose a reputable installer like Brackenwood to get the job done right.

Take the time to prepare for the installation. This will help ensure your new windows provide the energy efficiency, noise reduction, and other benefits you desire.

We will likely need to visit the site. Once our measurements are done, we can provide an accurate quote and time frame for your installation. We can tell you when the installation will start and how long it will take.

Contact a member of our team, today, and discover how long it will take to install your new Brackenwood windows.


Brackenwood Windows and Doors

Brackenwood Windows and Doors is a reputable company backed by the BSI, FENSA, and more. We specialise in A-rated, double-glazed window and door installations, and also offer other home renovations, such as conservatories and roofline changes. We have been serving customers for more than 30 years.

The team at Brackenwood understands that new windows, like Brackenwood’s uPVC casement windows, or tilt and turn windows ( to name only two types we have on offer) can be an expense for homeowners. To ease this burden, we provide a 10-year guarantee on our installations. We also offer Brackenwood Smart Pay, a finance option that makes it easy to get the installation you need right away. This gives homeowners, like you, peace of mind that your investment is protected.

Brackenwood offers a wide range of double-glazed windows and double-glazed doors like our front entrance doors, including uPVC, Aluminium, and Timber options. We also offer bespoke designs, tailoring each installation to a homeowner’s specific preferences.

Our windows and doors can be made to your specifications. You can choose from a range of fixtures and fittings, and an unlimited colour palette. You can also decorate both inside and outside to match your existing home design!

Our aim at Brackenwood is to reduce stress and hassle. We will help you design your new double glazing and then we ensure your installations look just the way you want them to.


Where To Go

You can view Brackenwood installations across Hampshire, Berkshire, Surrey, West Sussex, Dorset, and Wiltshire. Many homes that we installed new windows and doors in during the 1980s still have those installations today. 

We are always on hand to answer any queries you may have about your installation, too. Our services can help homeowners extend the lifespan of their windows and doors, so, enjoy the full extent of our services, today!



Installing double-glazed windows is a great investment. It can help improve a homeowner’s energy efficiency and home value. Whilst the installation time can vary depending on several factors, it typically takes between one to three days. This time frame includes the removal of old windows, installation of new frames, and the fitting of double-glazed glass panes.

Installation time can be affected by various factors. These include the size and number of windows, the type of window frames, and the complexity of the installation. Installation time may be longer if you have a lot of windows or custom-made frames. This is due to the extra work required.

At Brackenwood, we use only the best materials and we employ highly-skilled, certified professionals to ensure that your windows are installed correctly and efficiently.

In conclusion, installing Brackenwood double-glazed windows is a smart investment that can improve the energy efficiency and value of your home. Our team will work quickly, efficiently, and above all, safely, to ensure that your new double glazing installation is smooth and efficient. 

Work with one of our design team who will give you a good idea of how long your installation will take overall, but allow for factors such as inclement weather, or repairs to your home’s structure, for example, to ensure the proper installation of your new windows and doors.

At Brackenwood, we have an extensive range of installations to choose from. Contact us to find out more about how we can help transform your home, today.