Window Replacement How To: A Beginner's Guide

Window replacement is a daunting task for many homeowners, but it doesn’t have to be. With the right tools and knowledge, anyone can replace their windows and give their home a fresh look. In this article, we will guide you through the window replacement how to process step by step.

Step 1: Measure Your Windows

Before you start shopping for new windows, you need to measure your existing windows. Measure the width and height of the window frame from inside your home. It’s important to measure accurately to ensure you buy the right size window.

Step 2: Choose Your New Windows

Now that you have your measurements, it’s time to choose your new windows. There are many different types of windows to choose from, including double-hung, casement, and sliding windows. Consider your budget and the style of your home when choosing your new windows.

Step 3: Remove the Old Windows

Once you have your new windows, it’s time to remove the old windows. Start by removing the window sashes and then the window frame. Be careful not to damage the surrounding wall or trim.

Step 4: Prep the Opening

With the old window removed, you need to prep the opening for the new window. You may need to add insulation or trim to ensure the new window fits properly.

Step 5: Install the New Window

Now it’s time to install the new window. Start by placing the window into the opening and securing it with screws. Be sure to check that the window is level and plumb before securing it in place.

Step 6: Insulate and Seal

With the new window installed, it’s important to insulate and seal around the window frame. This will help improve energy efficiency and prevent drafts.

Step 7: Finish the Trim

Finally, you can finish the trim around the window. Use caulk to fill any gaps between the trim and the wall or window frame.


Q: How long does it take to replace a window?

Replacing a window can take anywhere from a few hours to a full day, depending on the type and size of the window.

Q: Can I replace a window myself?

Yes, with the right tools and knowledge, anyone can replace a window themselves.

Q: How much does it cost to replace a window?

The cost of window replacement varies depending on the type and size of the window, as well as the cost of installation. On average, homeowners can expect to pay anywhere from $300 to $1,000 per window.


Window replacement how to may seem like a daunting task, but with the right tools and knowledge, anyone can do it. By following these steps and taking the time to properly install your new windows, you can improve energy efficiency, enhance the look of your home, and increase its overall value.