One of the most common reasons for a sagging storm door is the metal frame. If your storm door is having trouble opening or closing or is scraping as you pull it, the metal frame might be to blame. If the frame shifts as you push the door up and down, start by anchoring it with a few more screws at the top of the wood trim.
It might be necessary to add more screws along the trim. Since this can look a bit rough, a coat of paint over the area helps disguise the extra hardware.
Installing a Shim
Installing a shim to reduce wear and correct the sag can also help. To do this, remove the bottom hinge and clear away any dirt or debris. Then lay a strip of wooden shim or cardboard by the hinge. Replace all the screws, then double-check the alignment by opening and closing the door repeatedly, paying attention to how it sounds and feels.
Installing a Turnbuckle
A screen door turnbuckle acts as a brace, strengthening the door. It’s a metal rod with threaded ends that connect to a coupling nut. Though it can correct the sag, a turnbuckle might slightly alter the door’s appearance.
How to Install a Turnbuckle:
- Begin by placing the turnbuckle squarely on the door’s bottom corner. It should continue diagonally below the opening side and all the way up to the hinge side.
- Open and close the door to make sure the turnbuckle isn’t interfering with the door seal, then use a pencil to mark the turnbuckle’s screw holes. Drill the screw holes, but don’t tighten them until all the holes are in place.
- Close and open the door again to double-check the alignment, then tighten the screws to secure the turnbuckle.
- Hold the coupling nut on the turnbuckle and watch as the rod raises the drooping side of the door.
- Turn the nut until the door is flush and level.
- If the turnbuckle becomes too tight, loosen it accordingly.
When Repair Isn’t Enough
A shim or turnbuckle can correct minor sag caused by a loose hinge or slightly shifted frame. But if your storm door has been sagging for a while, has visible frame damage, or the sag keeps returning after repair, that usually points to a bigger issue: a warped frame, worn-out hinges, or a door that was never squared properly during its original installation.
In those cases, a quick fix is a good short-term measure, but it’s not a long-term solution. Persistent sagging is often a sign the storm door itself is nearing the end of its useful life.
Why Choose Thompson Creek for Storm Door Replacement
If your storm door keeps sagging despite repairs, or you’re ready to upgrade to a door built for lasting performance, Thompson Creek’s storm doors are custom manufactured for a precise fit and backed by our 50-Year No-Hassle Warranty. Pairing a new storm door with your existing front and entry door creates a more secure, weather-tight entryway, and many homeowners choose to update both at the same time or add a sliding patio door elsewhere on the home in the same project. If you’re also noticing issues with your primary door, our guide on choosing the best material for a front entry door, our comparison of fiberglass vs. wood doors, and our overview of painting a fiberglass door are useful next reads.
Ready for a storm door that won’t sag? Contact Thompson Creek today for a free, no-obligation consultation. Our team can help you choose and install a new storm door built to last.
