Replacing a Window: The Ultimate Step-by-Step Guide 
January 10, 2023

Replacing a window may seem easy, but it takes time and some basic materials and tools. If you plan on doing this job, ensure enough time and the necessary equipment. This article will list the step-by-step process of replacing a window and give tips on contacting experts if you’re unsure how to do this yourself. Keep reading for more!

Required Tools

Here, you’ll see a list of basic tools for this task. These may include 

-Screwdriver or drill

-Measuring tape

-Leveling tool


-Pry bar/hammer and chisel

-Putty knife or scraper

-Glass cutter

-Window glazing compound and caulking gun for sealing

Step By Step Guide 

Once you have your materials assembled, you can begin the step-by-step process of replacing your window. This typically includes:

Step 1: Remove The Old Window

Before installing the new window, you need to remove the old one. Start using a pry bar to remove trims, moldings, and frames attached to the existing window. Once these have been removed, use a screwdriver to remove any nails holding the window.

Step 2: Measure & Mark the Opening

Use a measuring tape to the height and width of the opening. Then, mark these measurements on your new window so that it fits perfectly into place.

Step 3: Window Installation 

Once your new window is properly measured and marked, you can install it into the opening. This typically involves sliding the window carefully into place and securing it with screws or nails. Be sure to use a level tool to ensure that the window is properly aligned.

Step 4: Caulk & Seal

Finally, use a putty knife or scraper to apply a layer of window glazing compound around the edges of your new window. Then, use a caulking gun to seal the seams and gaps between the window and the surrounding trim or wall.

Not Sure How To Replace Your Old Window? Contact Mccormick Renovations!

Looking for experienced window installation companies to help with your replacement project? If so, look no further than McCormick Renovations. Our experts are experienced and knowledgeable in home renovations, including window replacement. We offer top-quality residential window installation services at competitive prices. Contact us today to learn more about our services and get started on your next window project!



1917 McCague St, Pittsburgh, PA 15218


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