Every spring, people tackle the same list, wipe down the baseboards, declutter the junk drawer and maybe finally deal with the garage. But windows and doors are often missing from homeowners’ spring cleaning checklists. Those usually get a quick Windex wipe and nothing else.
But here’s the thing: your windows and doors just spent the last few months dealing with cold snaps, wind, ice, and moisture. They’ve earned a closer look. A proper inspection takes about an hour and can help you catch a small problem before it turns into an expensive one.
Start by actually cleaning everything first; dirty surfaces hide a lot. Use a streak-free cleaner and microfiber cloth on the glass, warm soapy water on the frames and sills, and a vacuum attachment to clear out the tracks. Once everything is clean, work through our spring cleaning checklist below.
Windows
☐ Check for drafts. Close the window, then run your hand along the edges. Any air movement at all means the weatherstripping or seal isn’t doing its job. Some people hold a candle near the frame, and the flickering flame shows exactly where the problem is.
☐ Look for fog or cloudiness between the panes. If you’re seeing haze or condensation trapped inside a double-pane window, the seal has failed. That’s not something you can clean or caulk your way out of; the window needs to be replaced.
☐ Inspect the weatherstripping. Take a look at the strip around the sash. It should be soft and intact, not cracked, compressed flat, or missing in spots. Worn weatherstripping is an easy, inexpensive fix if you catch it early.
☐ Test how it opens, closes, and locks. Every window should operate without sticking or requiring extra force, and the lock should engage cleanly. A window that won’t lock is a security issue, not just an annoyance.
☐ Look at the frames and sills. For wood frames, look for soft spots, discoloration, or peeling paint (signs of moisture getting in). For vinyl or composite frames, check for cracks or warping. Water intrusion around a frame tends to spread quietly, so it’s worth being thorough.
☐ Check the exterior caulking. Step outside and walk the perimeter. Look at the caulk bead around each window frame. If it’s cracked, pulled away from the surface, or missing in spots, it needs to be redone. That’s where water gets behind your siding.
☐ Inspect the flashing. The metal above your windows directs rainwater away from the frame. Make sure it’s fully attached and sealed. Damaged flashing is one of the more common causes of water damage that people don’t catch until it’s already a problem.
Doors
☐ Feel for drafts around the frame. Close the door and check all four edges. If you feel air coming through, check the weatherstripping on the sides and top first, then look at the door sweep at the bottom.
☐ Check the door sweep. This is the rubber or bristle strip at the base of your exterior doors, and it wears out faster than most people realize. If you can see daylight under the door, or the edge looks flat and cracked, replace it. It’s cheap and makes a real difference.
☐ Test the swing. Open and close the door all the way. It should move freely without scraping or sticking. Minor dragging can often be fixed with a hinge adjustment, but a door that really binds may have shifted in the frame, which is worth looking into further.
☐ Test all locks and deadbolts. Every lock should turn and latch without any real effort. If a deadbolt is stiff or a latch doesn’t catch reliably, don’t put it off. These things tend to get worse before they get better.
☐ Inspect the frame and threshold. Check the door frame for cracks or separation from the wall. The threshold at the base should sit flat and seal tightly when the door is closed. A worn threshold is one of the easier entry points for water and cold air.
☐ Check exterior caulking around the door frame. Same as windows, look at the caulk on the outside of the door frame and replace anything cracked or missing.
☐ Clean out sliding and patio door tracks. These fill up with grit and debris over winter and put extra stress on the rollers. Clean the track out, lubricate the rollers, and the door will move like new again.
When It’s Time to Stop Patching
Most of what’s on this list is routine, the kind of maintenance that keeps things running for years. But sometimes you find something that can’t be fixed with caulk and a new door sweep.
If you’re seeing failed seals in multiple windows, warped or rotting frames, locks that won’t work right, or drafts that keep coming back no matter what you do, that’s usually a sign the windows or doors have run their course.
Modern replacement windows from Renewal by Andersen hold up significantly better than older construction. Our Fibrex® composite frames don’t rot, warp, or need repainting, and our windows are ENERGY STAR® certified, so they’re actually helping your energy bills rather than quietly making them worse.
If your inspection turns up more than you were expecting, we’re happy to take a look: free in-home consultations, no pressure. We’ll tell you what we see and let you decide what makes sense.
