Your windows do a lot more than simply providing a view: raise the blinds and they let in natural light; throw them open and they provide fresh air and much-needed ventilation.
But after months of wintry weather and spring rains and pollen, your windows, screens, and AC units are probably in need of a little TLC.
The good news? A few simple maintenance projects can help your windows look better and function more smoothly and can even lower cooling costs during warmer months.
Start with a Thorough Window Cleaning
Over time, dirt, dust, pollen, and water spots build up on window glass and around the frames. Cleaning them inside and out helps brighten rooms and improves curb appeal. And don’t forget the window tracks and sills, where dirt and debris often collect, too. Read this post for step-by-step instructions to get your windows sparkling clean.
Inspect Window Screens for Damage
Carefully examine screens for small tears that let in insects and bent frames that keep screens from fitting properly. Minor damage to the screen can be repaired with a screen patch, which is simply affixed to the screening like a band-aid. If the damage is more extensive, you may need to replace the mesh entirely.
Wash Screens to Improve Airflow
Dirty screens block airflow (not to mention they’re just plain gross). If your screens are covered in dust and grime, remove each one, lay it flat and gently brush or vacuum off loose dust before rinsing with a light spritz of water; if they’re really dirty, you can wash them with mild dish soap. Rinse thoroughly and let screens air dry completely before putting them back in place.
Check Caulk and Weatherstripping
Old or cracked caulk around windows can let in air and moisture, raising humidity and making cooling costs skyrocket. Check the caulk around each window and remove and replace any that’s cracking, shrinking, gapping, or peeling with fresh exterior-grade caulk. Check and replace weatherstripping too. Watch this video to learn how to pick the right foam tape for your project:
Lubricate Window Tracks and Hardware
Windows that stick or don’t stay open are a nuisance, but one that’s easy to fix. Clean and dry the window tracks thoroughly, then apply a silicone-based lubricant to any moving parts, tighten any loose screws or hardware, and check that locks and latches are operating properly.
Give Window Air Conditioners Some Attention
Your window AC units work hard during hot weather and a little maintenance now can help them run more efficiently while extending their lifespan. Before turning the unit on for the season, rinse or replace the filter, clean the coils, check the fins to make sure they’re not bent, and check the seal around the AC unit for gaps that let in hot, humid air. If you find any drafts, stop them by adding weather seal (we make one just for air conditioners!) or insulating side panels.
While you’re at it, check that drain holes (typically located at the bottom rear corner) aren’t clogged and make sure the unit tilts slightly outward to allow condensation to drain outside. You can add brackets to keep the unit positioned correctly and securely in the window.
Lastly, listen for rattling, buzzing, grinding, or other unusual noises that can be a sign of loose components or mechanical wear. Tighten visible screws, clear debris that may have collected around the fan, and check for any unusual vibrations. You may want to add an odor-fighting tablet to the air conditioner pan to keep the pan clean and odor-free, too.
