How Long Does It Take To Replace A Window?

how long does it take to replace a window

Do you have old drafty windows? Are your window frames rotted due to old age? Time to replace your windows? Wondering about the process and duration? If that case, this blog is for you!

The Type of Window Replacement

The type of replacement itself is the first aspect that significantly influences the time taken to replace a window. There are mainly two types: insert replacements and full-frame replacements.

Insert Replacements: These involve replacing only the window itself, leaving the existing frame intact. It is a quicker process because it avoids the need for external work and repainting, generally taking around 1-2 hours per window.

Full-frame Replacements: These replacements involve taking out the entire window, including the frame. This type of replacement is more complex, usually taking between 4-6 hours per window.

Window Size and Style

The size and style of your window also significantly impact the installation process and the time it takes to replace it. A standard double-hung window will generally take less time to replace compared to a large bay or bow window due to the complexity and size.

types of windows

Standard Windows: Double-hung or casement windows are quite straightforward to replace. A professional can often complete this type of work within an hour or two.

Complex Windows: Bay, bow, or custom-shaped windows require more time and precision. Replacing such windows can take several hours, if not the better part of a day.

Material of the Window

The material from which the window is constructed also plays a role in the time it takes to replace it. Different materials require different handling and installation techniques.

Wood Windows: These are time-consuming to install because they require precise measurements and alignments. Replacing a wooden window can take anywhere from 3-5 hours.

Vinyl or Aluminum Windows: These are quicker to install due to their lightweight nature and pre-manufactured sizes. The installation of such windows usually takes between 1-3 hours.

Existing Window Condition

The current condition of your existing window can also affect the replacement time. If the window or frame is severely damaged or rotten, additional work will be required, which can extend the replacement time.

Minor Damages: The replacement process won’t be significantly affected if the window or frame has minor damages, such as a small crack or rot.

Major Damages: However, if significant structural damage occurs, extra time will be needed to repair the frame before a new window can be installed.

old worn out window

How Good are the Window Installers?

The professionalism, experience, and skills of the window compan you hire play a critical role in determining how long it takes to replace a window.

Experienced Installers: Window professionals with experience and proper training can replace windows efficiently and within a shorter time frame.

Inexperienced Installers: On the other hand, less experienced or unskilled workers may take longer due to potential mistakes or a lack of familiarity with the process.

Weather Conditions

Weather conditions on the day of installation can significantly affect the time it takes to replace a window.

Favorable Conditions: Clear, sunny weather is ideal for window replacement. In such conditions, the process should proceed smoothly without any weather-related delays.

Adverse Conditions: However, in rainy or excessively windy conditions, the replacement process may be delayed or even postponed for safety reasons.

Window Customization and Special Features

Customizations and special features in your window can also extend the replacement time.

Standard Windows: Replacing a standard window with no added features is a relatively quick process.

Customized Windows: If your window includes special features such as built-in blinds, stained glass, or unique hardware, the replacement process will likely take longer.

complex custom window

Local Building Codes and Regulations

Local building codes and regulations can also impact the replacement time, as complying with these codes may require additional steps during installation.

Standard Installation: If your window replacement is straightforward and doesn’t involve any alterations to the existing structure, it will typically adhere to local codes without issue.

Complex Installation: If your project involves structural changes, the installers may need to take extra steps to ensure compliance, extending the replacement time.

Removing Old Window Treatments

The presence of old window treatments, like blinds or curtains, can add time to the window replacement process.

Simple Treatments: Simple window treatments can usually be removed quickly, adding minimal time to the replacement process.

Complex Treatments: However, more complex window treatments may require extra time for careful removal to prevent damage.

Cleanup and Final Touches

Lastly, the cleanup process and any final touches also contribute to the overall time spent on window replacement.

Minimal Cleanup: If the replacement is straightforward and tidy, cleanup can be completed quickly.

Extensive Cleanup: If the process is messy or if old materials need to be disposed of, cleanup may take longer. Final touches such as caulking and painting can also take longer to install.

window caulking


To wrap it up, replacing a window is not a one-size-fits-all scenario. Factors like the type of window replacement, window size and style, the condition of your current window, and even the weather can affect how long it takes. So, consider these aspects when planning for window replacement to ensure a smooth and efficient process.

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