September 28, 2023

Imagine the refreshing breeze flowing through your newly replaced windows, bringing natural light and a touch of elegance to your home. Replacing windows not only enhances your home’s beauty, but also improves energy efficiency and increases its value. In this comprehensive guide, we will walk you through the entire process, from understanding your options to installing your new windows, ensuring a successful DIY window replacement project.

Understanding Window Replacement Options

When it comes to window replacement, two main options are full-frame and insert windows. Full-frame replacement windows include a complete frame, comprising a head jamb, side jambs, and sill, making them suitable for installing in existing window frames. On the other hand, an insert replacement window or pocket vinyl replacement windows can be installed seamlessly into existing openings, providing a more streamlined and aesthetically appealing option.

The style of your home and the type of replacement operation being conducted will guide you in selecting the right replacement window. Accurate measurement before ordering your window will eliminate unnecessary adjustments to the raw opening. Consider hiring window company certified contractors for installing replacement windows to ensure a high-quality installation, especially when installing multiple windows.

Preparing for Your Window Replacement Project

Before diving into the window replacement process, gather the essential tools and materials, such as:

• Utility knife
• Drill
• Saw
• Level
• Caulking gun
• Caulk
• Weatherstripping
• Shims

Don’t forget to take safety precautions like wearing safety glasses, work gloves, and keeping children and pets away from the work area. Having an assistant can be advantageous, as one person can work inside while the other works outside.

Removing the Old Window

The first step to replace a window is removing the old one. This process involves detaching the interior and exterior trim, removing sashes and hardware, and cleaning the window opening.

Be sure to follow the steps carefully to avoid damaging the surrounding materials.

Detaching Interior and Exterior Trim

To detach the interior and exterior trim without causing damage, use a screwdriver, utility knife, and pry bar. Score the joint between the window frame and stop with a utility knife. This will help minimize paint chipping when prying off the stop.

Protect the wood by using a stiff putty knife when prying off the interior stop. Remove nails from the backside of the stop using nail nipper or pliers.

Removing Sashes and Hardware

After detaching the trim, remove the window sashes by cutting the sash cords and removing the sash weight pulleys. Once the sash weight cover and weights are removed, stuff the cavity with fiberglass insulation to improve energy efficiency.

Keep in mind that the exact method of removing sashes may vary depending on the type of window, so consult the manufacturer’s instructions or seek professional help if needed.

Cleaning and Repairing the Window Opening

A seamless installation requires a thoroughly cleaned and repaired window opening. Use a small hand-held vacuum or large paintbrush to remove dirt and spiderwebs from the windowsill. To further clean the area, a mixture of one part water and one part vinegar can be used with a clean microfiber cloth or mop head for the interior.

For the exterior, utilize a paper towel or soft microfiber cloth with window cleaner to wash the window opening and the frame. Dry the window opening effectively by using a covered broom or extendable squeegee.

Selecting the Right Replacement Window

Once the old window is removed and the opening cleaned, it’s time to install replacement windows that suit your home’s style and needs. Measure the existing window accurately and acquire a replacement window of the appropriate size.

Inspect the existing window frame for signs of water damage. Pay particular attention to the sill, as this is a vulnerable area. A good rule of thumb is to select a window that is 12 to 34 in (1.3 to 1.9 cm) smaller than the existing opening.

Measuring for Your New Window

Accurate measurements are crucial for a perfect fit of your new window. Measure the width between the side jambs at the top, middle, and bottom. Record the smallest measurement for each location. Measure the height from the top jamb to the sill on both sides and the middle, and record the smallest measurement as well. Make sure to account for squareness and level to avoid complications during installation.

Measuring Height and Width

To measure the height and width of the window opening, use a tape measure and take measurements at different points. Measure the distance between the side jambs at the top, middle and bottom for width. Use the smallest measurement. For height, measure from the sill to the inside of the trim at the top of the window, taking measurements at the left, center, and right side of the window and recording the results.

Accounting for Squareness and Level

Check for squareness and level of the window opening to ensure a proper fit for your new window. Measure diagonally across the window from the top left of the frame to the bottom right, and then from the top right to the bottom left.

Use a level on the window sill to confirm if the bubble is centered. If the window is not square or level, adjust it by adding or removing shims until it is square and level. Recheck the squareness and level after adjustments to confirm accuracy.

Installing the New Window

With the window opening measured and the right replacement window chosen, you can proceed with the installation. Follow the step-by-step guide to:

1. Position the replacement window in the opening.
2. Secure the window in place using screws or nails.
3. Check for proper fit and alignment, making any necessary adjustments.

Ensure the window is pressed firmly against the caulked blind stop and properly secured with shims and fasteners.

Positioning the Window

Place the new window on the sill and tilt it into place against the blind stop. Position the head expander at the top of the window jamb first. Make sure it’s securely in place before continuing.

Ensure the window is pressed firmly against the caulked blind stop, and check for alignment with other windows on the same wall, both horizontally and vertically.

Securing the Window with Shims and Fasteners

Once the window is positioned, secure it with shims and fasteners to ensure stability and proper alignment. Place shims behind the screw holes in each corner to ensure the diagonal measurements between opposite corners are equal. Adjust the shims until both diagonal measurements are the same.

Secure the window at the top and bottom with the mounting screws that came with the new window. Fix the header afterwards.

Checking for Proper Fit and Alignment

After securing the double hung windows, check for proper fit and alignment. Open and close the sashes to ensure they are parallel with the sill and top jamb. The top and bottom sashes should be parallel to each other at the meeting point in the middle.

Using a level, check the side jamb of the window to ensure it is straight. Place wood shims behind each remaining screw hole for added support.

Insulating and Sealing the Window

To improve energy efficiency and prevent drafts, it’s vital to insulate and seal your new window. Choose the right insulation materials, such as fiberglass or polyurethane foam, and apply caulk and weatherstripping to seal gaps and prevent drafts.

Choosing Insulation Materials

Select the appropriate insulation materials for your window replacement project. Common options include:

• Fiberglass
• Cellulose
• Mineral wool
• Foam
• Spray foam

Each material has its advantages and disadvantages, so consider factors like cost, ease of installation, and effectiveness at air blocking when making your choice.

Cost is an important factor to consider when selecting insulation materials. Fiberglass is usually the most common material.

Applying Caulk and Weatherstripping

To properly seal your new window, follow these steps:

1. Clean the area around the window and remove any existing caulk or weatherstripping.
2. Apply a high-quality, paintable, waterproof caulk to the window frame using a caulking gun. Lay down a continuous bead along the frame.
3. Smooth the caulk with a wet finger or a damp cloth.

Apply high-quality, self-adhesive weatherstripping along the window frame, pressing it firmly into place. Cut the weatherstripping to fit the frame with a utility knife.

Check for any gaps or drafts by running your hand along the window frame and applying additional caulk or weatherstripping as needed.

Reattaching Trim and Finishing Touches

Complete your window replacement project by reattaching the trim and adding finishing touches. Remove the old interior stops. Secure the new ones in place with 4d finish nails.

Ensure the trim sits flush with the window frame and fills any gaps.

With the trim in place, your window replacement project is now complete.

Troubleshooting Common Window Replacement Issues

Despite careful planning and execution, you may encounter some issues during your window replacement project. Common problems include damaged frames and out-of-square openings.

Address these issues by repairing or replacing damaged frames and adjusting for out-of-square openings with shims, caulk, or weatherstripping.

Dealing with Damaged or Rotted Frames

If you discover damaged or rotted frames during your window replacement project, assess the severity of the issue and decide whether to repair or replace the frame. Minor damage can be fixed with wood putty or epoxy, while more extensive damage may require a replacement of the entire frame.

Create channels for epoxy wood consolidant by drilling holes into the frame and applying the consolidant to reinforce and stabilize the existing wood.

Adjusting for Out-of-Square Openings

To address out-of-square openings, use shims to level the window and ensure a proper fit. Additionally, apply caulk or weatherstripping to fill in any gaps.

Recheck the squareness and level of the window after adjustments to confirm accuracy.

Tips for a Successful DIY Window Replacement Project

A successful DIY window replacement project requires:

• Proper planning
• Accurate measurements
• Appropriate tools
• Adherence to the manufacturer’s instructions

Take safety precautions and use the proper insulation and weatherstripping to guarantee a secure seal.

Following these tips will lead to a successful window replacement project, enhancing the beauty and energy efficiency of your home.

Hiring a Professional for Window Replacement

While many homeowners can tackle a window replacement project, hiring a professional is the best option to install a window properly. If you have doubts about completing the project successfully or wish to mitigate potential risks, consider engaging the certified contractors from a window replacement company like our team here at Coughlin Windows & Doors. Our contractors have the experience and expertise to ensure installing windows is done correctly and safely, and can guarantee flawless results and a more energy-efficient home!

The Benefits of Replacing Your Windows

Replacing your windows offers numerous benefits, including:

• An increase in home value
• Improved security and safety
• Reduced dust and allergens
• Energy savings
• Improved energy efficiency
• Noise reduction
• A brighter indoor space

Undertaking a window replacement project allows you to reap the myriad benefits of having new, energy-efficient windows in your home, while upgrading your existing windows.

Frequently Asked Questions

How much does it cost to change a window?

Window replacement costs typically range from $300 to $1,200 per window, depending on factors such as window type, materials, and installation complexity. Double-pane window upgrades may cost between $200 and $800 per window.

Can I replace windows myself?

If you’re confident in your abilities, purchasing the right tools and materials can allow you to replace windows yourself. However, it may be wise to consider leaving it to a professional as it requires a lot of expertise.

How difficult is replacing a window?

Replacing a window can be a straightforward task for experienced professionals; however, it is important to note that it requires precision and may be difficult for those who have never done it before.

What are the steps to replacing a window?

To replace a window, clean the window opening and apply flashing tape, then make sure the wall is level and dry-fit the new window. Next, caulk the frame and set the window in place, then fasten it and adjust for proper fit.

How do I measure for a new window?

To accurately measure for a new window, take the smallest measurement of width between side jambs at the top, middle, and bottom, and the smallest measurement of height from the top jamb to the sill on both sides and the middle.