How to Replace Window Screen: Step-by-Step DIY Guide

Identify Your Window Type

Understanding your specific window type determines the correct approach for removing and installing the screen. Different window designs require distinct techniques, making proper identification crucial before you begin your replacement project. The four most common window types each have unique characteristics that affect the screen replacement process.

Sliding Windows

Sliding windows (also called gliders) move horizontally along tracks rather than vertically. You'll find these space-saving windows in kitchens, bathrooms, basements, and living rooms where their contemporary design fits well.

Key features of sliding windows:

• Move horizontally along tracks
• Often have removable panels
• Feature leaf springs for easy installation and superior fit

These windows function like double-hung windows rotated to a horizontal orientation. This distinction matters when ordering replacement screens since the dimensions and attachment mechanisms differ significantly from vertical windows.

Pro Tip: Check if your window sashes move side to side rather than up and down to identify sliding windows. Look for screen channels along the top and bottom of the frame where the screen slots into place.

Double-Hung Windows

Double-hung windows represent the most popular window design in the United States. Both the top and bottom sashes open and close independently, offering superior ventilation control.

Unlike single-hung windows, where only the bottom pane moves, double-hung designs let you slide the bottom sash up for cool air intake while the top sash slides down for warm air exhaust.

Double-hung window screen characteristics:

• Equipped with leaf springs for easy installation and removal
• Available in full and half-screen options
• Can function as single-hung windows when needed

Screen replacement on double-hung windows accommodates the window's dual functionality without interfering with operation or blocking sightlines.

Casement and Awning Windows

Casement and awning windows use crank systems to open outward rather than sliding along tracks. The orientation determines which type you have:

Both types work well in tight spaces where ventilation control matters most. Their screens feature flanged designs that create secure, leak-resistant seals with robust frame profiles.

Casement window screens need specific replacement latches based on your window brand. Andersen® windows use wing blades compatible with 100 Series, 400 Series, and A-Series Casement Windows.

Fixed Frame Windows

Fixed frame windows don't open—they provide light and visibility only. Screen installation typically happens on the exterior rather than integrated into frame mechanisms.

Fixed window screen frames employ simpler designs, as they don't require moving parts. However, precise measurement remains essential for a proper fit against the exterior window frame.

Measure the outer dimensions of the window frame rather than just the glass area for fixed windows. Accurate measurements are crucial since these screens are secured using external clips or fasteners rather than built-in channels.

Correct window type identification serves as the foundation for successful screen replacement. Each type requires specific removal and installation techniques to ensure a proper fit and long-term performance.

Choose the Right Screen Material

Selecting the appropriate screen material determines how long your screen lasts and its performance in various conditions. Your material choice affects durability, visibility, and maintenance requirements. Consider your specific needs, from climate conditions to household factors, when evaluating your options.

Fiberglass vs. Aluminum Mesh

Fiberglass and aluminum represent the two primary choices for window screens, each offering distinct advantages based on your priorities.

Fiberglass screens offer excellent visibility with minimal sunlight glare while remaining flexible and resistant to unraveling. This forgiving nature makes them particularly suitable for DIY installations and homes with children.

Aluminum screens offer superior strength and maintain their shape more effectively over time. They resist sagging and provide better protection against larger insects, such as grasshoppers, that might damage other materials.

Pro Tip: Opt for fiberglass for coastal homes to prevent corrosion issues that can affect aluminum screens over time.

Pet-Resistant and Solar Screen Options

Pet-resistant screens use vinyl-coated polyester that's approximately 7 times stronger than traditional fiberglass screens. These heavy-duty options effectively resist tears, punctures, and snags from pet claws and teeth. Despite their rugged construction, they maintain excellent visibility and airflow comparable to conventional screens.

Solar screens focus on energy efficiency and sun protection:

• Block up to 90% of harmful UV rays
• Reduce heat gain and cooling costs
• Protect furniture and fabrics from fading
• Decrease glare on electronic screens

These screens come in various densities (typically 70%, 80%, or 90%), allowing you to choose how much sunlight to block. Although slightly more visible than standard screens, the energy savings often justify this minor trade-off.

Pro Tip: Solar screens made with vinyl-coated polyester offer dual benefits—pet resistance plus energy efficiency for households with both needs.

How to Measure for Screen Size

Accurate measurements ensure your replacement screen fits properly. Your measurement approach depends on whether you have an existing screen frame.

If you have an old screen frame:

1. Measure the width, height, and frame depth of the existing screen
2. Record measurements to the nearest 1/16 inch
3. Check if the frame is bent or damaged before using these measurements

Without an existing frame, measure the window frame itself:

For single or double-hung windows:

1. Insert the measuring tape behind the bottom lip of the frame
2. Measure vertically to the top of the window screen channel
3. Add 1/8 inch to this height measurement
4. Measure horizontally across the screen channels
5. Subtract 1/8 inch from this width measurement

For sliding windows:

1. Identify the shallower U-shaped channel (this contains the lip)
2. Measure as you would for traditional windows
3. Subtract 1/8 inch from both width and height

Pro Tip: Take photos of your window along with measurements to ensure you purchase the correct replacement materials.

Select materials based on your window type, local environmental conditions, and household needs to ensure optimal performance and value.

Remove the Old Screen and Frame

Screen removal requires the right approach for your specific window type. You can safely detach screens from any window without damaging the frame when you use proper techniques. This section covers removal methods for different window styles, spline extraction, and frame preparation.

How to Detach Screens from Different Window Types

Each window design requires a specific removal approach:

Sliding windows require you to open the window completely and locate the release mechanism at the top or bottom edge. Tilt the screen toward you at an angle, then slide it horizontally out of the track.

Double-hung windows typically use spring mechanisms or tabs. Compress the springs (located on the screen frame sides) toward the window center, then pull the screen inward at an angle.

Pro Tip: Check for dirt or debris in tracks if screens resist removal. Clean tracks thoroughly before attempting removal again.

Removing Old Spline and Mesh

Once you detach the screen frame:

1. Place the frame on a flat work surface and secure it to prevent movement
2. Use a flathead screwdriver or spline removal tool to pry up one end of the old spline
3. Pull the spline out of the groove around the entire frame perimeter
4. Remove the old screen mesh after spline removal

A deteriorated or melted spline may require cutting into manageable sections with a utility knife. Use a small flathead screwdriver to scrape out the remaining pieces.

Cleaning the Frame Before Replacement

Thorough frame cleaning ensures proper adhesion and longevity:

1. Wipe away dirt and grime from the window frame and sash with a damp sponge
2. Clean the spline groove with a dry cloth to remove debris or spline remnants
3. Inspect the frame for damage, warping, or loose corners requiring repair
4. Allow the frame to dry completely before new screen installation

Pro Tip: Mild soap solution works well for most frames. Avoid abrasive cleaners that can scratch the finish.

Wooden screen frames using staples or nails require careful fastener extraction with a staple remover or claw hammer before proceeding with installation.

Install the New Screen

Screen installation requires careful attention to technique and tension. The right approach ensures your screen remains taut and functional for years without sagging or premature wear.

Cutting and Positioning the Mesh

Unroll your screen material over the frame on a flat work surface. Cut the screen with a 1-2 inch overlap on all sides—this extra material provides the working room needed for proper tensioning. Insufficient overlap prevents adequate coverage and secure attachment to the frame channels.

For aluminum screens, use the convex side of your spline roller to pre-roll the screen material into the frame channels before installing the spline. This step creates better contact and prevents wrinkles. Fiberglass screens don't require this preliminary step due to their flexible nature.

Using a Spline Roller Correctly

The spline roller serves two distinct functions depending on which side you use:

Start at one corner and press the spline into the groove using your fingers initially. Roll consistently in the same direction throughout installation—reversing direction can damage the spline or create loose sections. At corners, bend the spline at a 90-degree angle and press it securely using a flathead screwdriver.

Preventing Wrinkles and Maintaining Tension

Proper screen tension comes from technique rather than excessive stretching. Hold the screen material firmly as you work around the frame perimeter. The process of pushing the screen into the channel creates natural tension without overstretching the material.

Secure two adjacent sides first, then place a weight in the center of the screen before completing the remaining two sides. This method distributes tension evenly and prevents the common problem of one side becoming too loose while the opposite side is overly tight.

Trimming Excess Material

Once the spline secures the screen around the entire frame perimeter, trim excess material with a sharp utility knife. Cut along the outside edge of the frame channel, keeping the blade angled slightly outward to avoid cutting into the installed screen material.

Run the knife in smooth, continuous strokes rather than short, choppy cuts to achieve clean edges that won't fray over time.

Reinstall and Test the Screen

Proper reinstallation determines whether your screen replacement project is successful or requires additional work. You'll need to reattach the screen correctly and verify it operates smoothly. This final step ensures your new screen functions properly and lasts for years to come.

Reattaching Screens to Various Window Types

Each window style requires a specific approach for reinstallation:

For screens with tension springs, place the spring side into the groove first, push the opposite side carefully, then release gradually to allow proper compression.

Checking for Fit and Tension

Inspect your reinstalled screen systematically:

1. Look for gaps between the screen and frame
2. Press gently against the screen to test tension
3. Verify all latches and springs are fully engaged

A correctly installed screen will be taut without sagging. The frame should sit evenly, without wobbling or protruding from the window opening.

Fixing Common Installation Issues

Address these problems promptly to prevent further complications:

• Misaligned screens: Clean debris from tracks, replace damaged hardware, and realign the frame.
• Difficult operation: Check for bent frames requiring complete replacement.
• Loose fit: Ensure tension springs are properly compressed and engaged.
• Poor tension: Remove and reinstall, pulling the screen fabric tighter during installation.

Solving these issues quickly saves time and prevents the need for complete screen replacement later.

Conclusion

Window screen replacement delivers immediate benefits with minimal time investment and basic materials. You now have the knowledge to identify window types, select appropriate materials, and complete the installation process successfully.

Proper measurement forms the foundation of any successful screen replacement. Take precise dimensions of your existing frame or window opening to ensure the best fit across all window styles.

Material choice affects both performance and longevity. Fiberglass provides flexibility and clear visibility, while aluminum offers superior strength. Pet-resistant screens withstand damage from animals, and solar options reduce heat gain and UV exposure.

Check your completed installation for proper tension and secure attachment. Address any gaps or sagging immediately to prevent future problems. A well-installed screen should sit taut and flush against the frame without wobbling.

This simple project enhances security, improves appearance, and maintains comfortable airflow throughout your home. You can now handle screen replacement confidently whenever maintenance becomes necessary.

Key Takeaways

Master window screen replacement in under 2 hours with these essential insights that will save you money and improve your home's functionality.

• Identify your window type first - Sliding, double-hung, casement, and fixed windows each require specific removal and installation techniques for successful screen replacement.
• Choose materials based on your needs. Fiberglass offers flexibility and better visibility, while aluminum provides superior strength. Consider pet-resistant or solar options for specialized requirements.
• Measure accurately for a perfect fit - Take precise measurements of existing frames or window openings, adding or subtracting 1/8 inch as needed, depending on the type of window.
• Use proper spline roller technique - Roll in one direction only using the concave side for spline installation, and maintain consistent tension to avoid wrinkles and sagging.
• Test thoroughly after installation - Check for proper fit, tension, and secure attachment by gently pressing the screen and verifying all latches or springs are fully engaged.

This DIY project typically costs under $20 per window and takes just 10 minutes per screen once you understand the process. Proper installation ensures years of bug-free ventilation while maintaining your home's security and appearance.