Window and Door Screen Repair and Replacement
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Screen repair is one of the simplest and cheapest home maintenance tasks. A small tear needs a patch and five minutes. A full rescreen needs a roll of screen material, a spline roller, and about 15 minutes per screen. The materials cost a few dollars per screen, and the tools are inexpensive enough to keep permanently.
Patching Small Tears
For tears smaller than about 2 inches, a self-adhesive screen patch works well. Clean the area around the tear, center the patch over the hole, and press it down firmly. These patches come in fiberglass and aluminum to match common screen materials. They're visible up close but unnoticeable from a normal viewing distance.
For slightly larger tears where the screen material is intact around the edges, you can close the hole by realigning the torn fibers with a toothpick or needle and applying a thin bead of clear silicone over the repair. This works best on fiberglass screen where the fibers are flexible enough to reposition. Aluminum screen tears are sharper and don't reposition as easily.
Full Rescreen: Materials
Fiberglass screen is the standard for most residential windows. It's inexpensive, easy to work with, and doesn't crease or dent. It stretches slightly during installation, which makes achieving a flat, wrinkle-free result easier. Aluminum screen is more durable and provides slightly better visibility. It's harder to work with because it creases if you're not careful during installation.
Specialty screens include pet-resistant screen (vinyl-coated polyester that resists claw damage), solar screen (reduces heat gain by blocking a percentage of sunlight), and fine-mesh no-see-um screen (blocks tiny insects). All install the same way — they just use different materials. Spline (the rubber cord that holds the screen in the frame channel) comes in diameters from about .140 to .220 inches. Bring a piece of your old spline to the store to match the size.
Full Rescreen: Process
Remove the screen from the window or door frame. Lay it flat on a work surface. Pull out the old spline from the channel around the perimeter — a flat-head screwdriver or an awl starts the pull, then it comes out by hand. Remove the old screen material.
Lay new screen over the frame, leaving at least an inch of excess on all sides. Starting on one long side, press new spline into the channel over the screen using a spline roller (a small wheel on a handle). Roll firmly and steadily — the spline pushes the screen into the channel and locks it in place. Do the opposite long side next, pulling the screen slightly taut before rolling the spline. Then do both short sides. Trim the excess screen outside the spline channel with a utility knife.
Frame Repair
Bent aluminum screen frames straighten by hand for minor bends. For sharper bends, remove the screen and spline, clamp the frame to a flat surface, and straighten it with steady pressure. If a corner joint has separated, push it back together and secure it with a corner key (a small L-shaped insert that fits inside the frame extrusion). Most frames use these corner keys, and replacements are available at hardware stores.
Broken frame sections need replacement. Measure the broken piece, buy the matching aluminum frame extrusion (sold by the foot), and cut it to length with a hacksaw. Assemble with corner keys. If you're replacing a full frame, bring the old one to the store to match the profile — there are several standard extrusion sizes, and the screen channel width and depth must match for the spline to seat properly.
Screen Door Adjustment
Sliding screen doors ride on rollers at the bottom. If the door drags or won't slide smoothly, adjust the roller height with a Phillips screwdriver through the access holes at the bottom of the door. Turning the adjustment screw raises or lowers the roller. Raise it just enough to clear the track without lifting the door out of the top channel.
Clean the track with a stiff brush and vacuum. Debris in the track causes more sliding problems than roller wear. A light coat of silicone spray on the track reduces friction. If the rollers are worn flat (you'll see flat spots instead of round wheels when you remove the door), replace them. Roller assemblies pop out of the door frame and replacements snap in. Bring the old assembly to match the style — there are dozens of variations.
Frequently Asked Questions
How do I measure for replacement screen material?
Measure the outer dimensions of the frame and add 2 inches to each dimension. You need at least an inch of excess on each side for pulling the screen taut and trimming after the spline is installed. Screen material is sold in standard widths (typically 36 and 48 inches) and by the foot off a roll. Buy a few extra feet — it's cheap, and having extra is better than coming up short on the last screen.
What size spline do I need?
The spline must match the channel in your frame. Most residential frames use .140 to .160 inch spline for fiberglass screen, and slightly larger (.180 to .220) for thicker specialty screens. The easiest way to match it is to pull a piece of old spline from the frame and bring it to the hardware store. If you don't have old spline, measure the channel width with a tape measure or calipers and choose spline that's slightly larger than the channel — it compresses to fit.
Is it cheaper to repair screens or buy new ones?
Repair is almost always cheaper. A roll of fiberglass screen costs about 10 to 15 dollars and covers 4 to 6 standard window screens. A package of spline costs about 5 dollars. A spline roller costs about 10 dollars and lasts indefinitely. Total investment for the tools and materials to rescreen every window in the house is about 30 to 40 dollars. Buying pre-made replacement screens runs 15 to 30 dollars each.