how long does a window replacement take 1

Replacing the windows in your home is a major project, but one that can pay off with increased home value, energy efficiency, and comfort. If you’re considering new windows, one of the first questions you probably have is: how long does a window replacement take?

The timeline for window replacement depends on several factors, including the number of windows being replaced, their size and location, the window materials, and more. Generally speaking, you can expect the entire window installation process to take anywhere from a few days to a few weeks.

Window Replacement in the United States

Window replacement is a major industry in the US. Thousands of windows are replaced each year as homeowners seek to increase home value, energy efficiency, soundproofing, and security. The window replacement industry employed 48,436 people and generated over $6 billion in revenue in 2023 alone.

Window replacement first became popular in the 1970s during the energy crisis, as homeowners looked for ways to better insulate their homes. Early windows were made of wood, but vinyl became a popular option in the 1960s for its durability and low maintenance. Today, over 40% of new windows installed are vinyl.

How Long Does it Take to Replace Windows? KEY Factors to Consider

how long does a window replacement take


An experienced window installation crew can average around 30 minutes per window for t the full replacement process. This means a 2-person team could typically install about 16 standard-sized windows in one 8-hour workday. Larger or hard-to-access windows may take longer, but 30 minutes per window is a reasonable timeline estimate.



However, the timeline for completing a window replacement depends on the following factors:

1. Number of windows

The more windows you’re replacing, the longer the window replacement project will take. Replacing just one or two windows could take as little as a day or two for the full window installation process. However, a whole-home window replacement project involving 10 or more windows could take several weeks to complete.

2. Size of the windows

Larger, full-size windows naturally require more time to properly remove the old window, prepare the window openings, and install the new custom windows. Large picture windows or bay windows often require extra installer manpower and time.

3. Location

Windows located on the second story or other hard-to-access areas of the home will add more time to the window replacement timeline versus windows on the first floor or other easy-to-reach areas. Getting access to second-floor windows often requires additional equipment like ladders or scaffolding.

4. Window materials

how long window replacemen takes


Basic vinyl replacement windows can typically be installed more quickly than specialty windows made from wood, fiberglass, or custom materials. Unique window shapes and designs add to the installation time as well.


5. Scope of the project

Just replacing the window sashes themselves is a smaller job than replacing the full window frames, which requires more teardown. Complete window opening teardowns and rebuilds will take the most time for the installation crew.

6. Crew size

The more skilled window installers you have working on the window replacement project, the faster the job can get done compared to just having a solo contractor. More workers allow for parallel workflows.

7. Permitting

If the local building codes require getting permits for the window installation project, this process can add days or even weeks to the overall replacement timeline. Permitting adds administrative work before installers can even begin.

8. Access to windows

window replacement duration


Accessing windows high up on the second floor or obscured windows will add time. Window installers may need to move furniture or remove window treatments to gain access.




9. Lead time for window ordering

If ordering new custom windows, factor in the lead time from the manufacturer. This can take 4-6 weeks from order to delivery.

The key is carefully planning out the window replacement project and having experienced window installers handle the entire installation process efficiently.


The Window Installation Process

how long does a window replacement take

Replacing your home’s windows involves several steps in the window installation process:

Initial consultation

The professional window installer will visit your home to take precise measurements of all window openings and assess the full scope of the window replacement project. This is crucial for ordering custom windows.

Window ordering

Your window contractor will place the order for the new replacement windows based on the specifications gathered during the in-home consultation. Ordering custom windows can take 4-6 weeks depending on the manufacturer’s production schedule and any shipping lead times.

Preparing the workspace

On installation day, the crew will prepare the interior work area by putting down drop cloths, removing window treatments, and moving any furniture away from the windows to allow access. For second-floor windows, ladders or scaffolding may be required.

Tearing out the old windows

The installers will remove the old window sashes and frames one by one from each opening. The openings are prepped and any repairs are made to the surrounding wall.

Installing the new windows

The replacement windows are brought inside and unwrapped. The crew will carefully level, square, and secure each new window into the opening, sealing the edges fully.

Interior and exterior finishing

The installers will complete the inside and outside trim work, caulking and sealing the edges, applying weather stripping, etc. to ensure full insulation.

Cleaning up

Once the new windows are in, the team will haul away all debris, clean the windows and window frames, and do a full cleanup of the interior spaces.

The entire window replacement process typically takes 2-3 days but can vary based on the project scope. Proper planning is key to making sure the window installation job goes smoothly from start to finish.

How to Look for High-Quality Replacement Windows

replacement windows

Looking for replacement windows? Here’s what to consider:

  • Materials – Vinyl and wood are most common. Fiberglass and aluminum are also options. Look for durability.
  • Efficiency – Look for ENERGY STAR ratings and low U-factors. This determines energy efficiency.
  • Glazing – Double or triple pane glass provides better insulation. Look for argon gas fills.
  • Hardware – Look for quality locking mechanisms and hinges. Make sure screens are included.
  • Warranties – Good window brands offer 10-20-year comprehensive warranties.
  • Company reputation – Read reviews and check organizations like the BBB for complaints.

Get Started Today

If your home needs new windows, don’t wait! Contact the experts at Scottsdale Window Replacement & Doors today to schedule your free estimate.

Act now and you can take advantage of our limited-time offer to get 1 window replaced, and get a second window replaced at 40% off! Invest in new energy-efficient windows and increase the comfort and value of your home.

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