Many of us have been there; it is time to renovate or update your home, and the windows need to be replaced. Sure, changing a screen is easy, but revamping and changing a window is a completely different story.

Whether you are fixing up a fix and flip home as an investor, or you’re are doing work yourself on your personal residence, or are looking to refurbish a business space, figuring out how to install replacement windows is a critical point in a home or office makeover. 

The goal of this article is to give you tips and suggestions regarding replacement windows, and the best way to install replacement windows for your home or business project.

Step One – Preparation

What window parts are needed? First, replacement windows fit into existing frames or openings in a newly framed structure. There are hundreds of sizes that can be fixed, from standard to small size, narrow openings that measure out to 11 ½ inches. Conversely, windows can be sized to be massive 65-68’ wide!

Finding the perfect replacement window will solely depend on the measurement or desired width and height of the replacement window, and the type of material for framing and glass type. Frames can come in materials such as aluminum-clad wood, vinyl-clad wood, standard wood, fiberglass, or vinyl.

What Types of Replacement Windows Are on the Market?

Mainly, there are three types of replacement windows that can be classified on a standard level. These include: sash kits, insert replacements, and full-frame units. The type of replacement window type to be used will depend on the design spectrum desired, and anatomy of the existing window that is to be replaced.

window placement

Full-Frame Replacement Windows

  • How to do it? Replace full existing windows that go down to the frame of the house.
  • Why use a full frame? One major reason is because of a rotting existing frame that is falling apart.
  • Difficulty rating: advanced.

Insert or Pocket Replacement Windows

  • How to do it? Replace only the existing sashes with smaller windows that fit inside the current frames.
  • Why use a pocket replacement window? Existing frames are in great condition, and the window needs updating for a remodel or refurbish.
  • Difficulty rating: easy to moderate, and an excellent DIY option.


  • Why use a sash-kit? Affordable for replacing older windows.
  • Difficulty rating: moderate.

Now that you have decided what you will replace the window with, let’s talk about the steps that are taken to take the old window out, and put the new one in.

  • Remove the old window taking out any old screws, storm frames, or sash springs.
  • With a utility knife, score along the frame of the window removing putty and any old rotting material.
  • Remove sash weights and sash screws if present.
  • Identify and remove potential stops in the existing window.
  • With the utility knife, score where the stop meets the frame. Here you might need to use a saw or a pry.
  • Remove the stop and lower sash.
  • Check the sill and make sure it is level.
  • Gently fit the new window.
  • Remove the window and make adjustments if needed. If no adjustments are needed, use wall calk to install the new frame.
  • Inside, screw in the necessary components.
  • Check the frame and sash alignment.
  • Apply spray foam from the outside around any gaps in the window.
  • Apply the adaptor, fitting as needed.
  • Use trim and calk to adjust any holes or gaps in the new window and frame.

If you need replacement windows, contact us! While this seems like an easy process, you will want to make sure the job is done right the first time. For a free consultation, give us a call, and get those new windows in!