A torn screen usually comes from something small: a dog's paw, a hailstone, a ladder leaned in the wrong spot, or mesh that simply got brittle after years of sun. The tear looks bad, but the frame underneath is almost always fine — and the frame is the expensive part. New mesh and spline together typically run about $10 to $20 per window, and the job needs one specialty tool that costs less than a pizza.
A window you can't open because the screen is shredded stays shut all summer, and you lose the free night cooling with it. If sticky sashes are part of the problem, here's how to free up a window that sticks so the new screen gets used.
Screen mesh isn't all the same, and the roll you grab decides how long the repair lasts. Standard fiberglass is the cheapest and easiest to work with — it doesn't crease, cuts cleanly, and won't corrode. Aluminum is sturdier and resists sagging, but it kinks if mishandled and can oxidize near salt air. Pet-resistant mesh is several times thicker than standard fiberglass and shrugs off claws; it costs more and blocks slightly more airflow and light.
| Mesh type | Best for | Watch out for |
|---|---|---|
| Fiberglass | Most windows; the default choice | Tears again under pet claws; gets brittle with age |
| Aluminum | A crisper look and better sag resistance | Permanent creases if bent during install; oxidation near the coast |
| Pet-resistant | Doors and windows at dog and cat height | Higher price; slightly darker view and less airflow |
One more variable: spline diameter. The spline — the rubber cord that wedges mesh into the frame's channel — comes in sizes measured in thousandths of an inch. Too thin and the mesh pulls out; too thick and you'll fight the roller on every inch. Take a piece of the old spline to the store and match it. Old spline that comes out soft and unbroken can be reused, but most people replace it and skip the guesswork.
Most modern screens are aluminum frames with a spline channel, and the steps below are for them. Older wood-frame screens hold mesh with staples under a wood molding strip instead — the swap is similar, but you'll pull staples and re-staple rather than roll spline. Also check the frame itself: a bowed frame or cracked corner won't hold tension, and new mesh on a bent frame wrinkles no matter how carefully you roll. Straighten a slight bow by hand on a flat surface; replace a frame that's badly bent.
Take the screen out of the window. Most frames lift or tilt out once you pull the spring clips, pull tabs, or plunge bolts holding them. Set the frame on a flat surface — a workbench, a driveway, a sheet of plywood. Never rescreen a frame while it's still in the window; you need it flat and supported so you can lean on the roller without bending the rails.
Pry out the old spline. Find the end of the spline — there's a seam somewhere along the channel, often at a corner. Work the screwdriver tip under it, lift the end free, then pull the rest out by hand in one slow loop. The old mesh comes with it. If the spline crumbles into bits, pick the pieces out of the channel with the screwdriver so the new spline seats fully.
Lay the new mesh over the frame. Unroll the screen across the frame with an inch or two of overhang on every side. Don't cut it to size first — the trimming happens last, after the spline locks everything down. Square the weave roughly with the frame so the grid lines run straight; a crooked weave is invisible up close and glaring from across the room.
Press the mesh into the channel. Using the convex wheel of the spline roller, roll along the channel on one short side, pushing the mesh down into the groove — this pre-seats it so the spline doesn't have to drag it in. Then lay the spline over the channel and roll it in with the concave wheel, pressing firmly. Work the short side first, then one long side, mesh pulled gently taut with your free hand.
Finish the remaining sides. Continue around the frame: opposite short side, then the last long side. The mesh should get drum-tight as you complete the final side. If a section wrinkles, don't yank harder — lift that stretch of spline with the screwdriver, smooth the mesh, and roll it back in. Watch your corners: the spline tends to pop out where it turns, so give each corner an extra firm pass.
Trim the excess mesh. With the spline fully seated, run the utility knife along the outside edge of the channel, blade angled slightly away from the spline, and cut off the overhang in one steady stroke per side. Trim only after the spline is in — cut earlier and the mesh shrinks back out of reach. Keep the blade off the spline itself; a nicked spline lets go later.
Reinstall the screen. Pop the frame back into the window, check that the springs or clips catch, and press gently at the center of the mesh. It should feel taut like a drum head, with no ripples. Open and close the window once to be sure nothing binds.
Cutting the mesh to size first. Pre-cut mesh always ends up a half inch short somewhere. Leave the overhang and trim at the end. Rolling the spline in loose. Half-seated spline pops out within days; lean your weight into the roller. Over-tensioning. Pulling the mesh guitar-string tight bows the long rails inward, and the frame rattles in the window. Snug and flat beats stretched. Reusing brittle spline. Stiff, cracked spline won't grip — it's the cheapest part of the job, so replace it. Skipping the flat surface. Rescreening on your lap bends frames and guarantees wrinkles.
Screen doors follow the same routine, just bigger; do them flat on the ground. Renters: this is one repair most landlords won't object to you doing yourself, since you're restoring the screen, not modifying anything — it fits the same spirit as other no-damage fixes renters can make. And if your screens will sit in front of a window AC unit this summer, check the fit against the unit now — our window AC checklist covers the frame and seal details that keep cooled air from leaking around the edges.
A torn screen is a 15-minute, one-tool fix: spline out, new mesh down, spline rolled back in, excess trimmed. Match the spline diameter, pick pet-resistant mesh if claws caused the tear, and don't cut anything until the spline is seated.
Typically about $10 to $20 per window for mesh and spline if you already own the roller, and the roller itself usually runs under $10. Having it done for you costs several times that per screen.
Yes, if it comes out in one piece and still feels soft and springy. If it's stiff, nicked, or breaks as you pull it, replace it — old spline that lets go after you've trimmed the mesh means starting over with a new piece of screen.
About 15 minutes once you've done the first one, and most of the first one is just learning how hard to press the roller. Screen doors take two or three times as long because of their size, not because the job is different.
Fiberglass for most homes: cheaper, easier to install without creasing, and it won't corrode. Aluminum looks crisper and resists sagging on large screens but dents permanently if you bend it during the install. Pet-resistant mesh beats both anywhere an animal can reach.
A slight bow can be straightened by hand against a flat surface before you start. A frame that's badly bent or has a broken corner won't hold even tension, and the new mesh will wrinkle — replacement frames and frame kits cost far less than fighting a bad frame for an hour.