Double hung windows are one of the most practical upgrades you can make to your home. They look clean, operate easily, and make ventilation a breeze.
But even the best windows won’t perform well if you don’t take care of them. Fortunately, even simple maintenance can save you from drafts, sticky sashes, and costly repairs.
Here’s what every homeowner needs to know to keep double hung windows working like they should.
Tip #1: Clean the Tracks and Sashes Regularly
Over time, dust and grime build up in the tracks and around the sashes. This causes sticking, makes the windows harder to open or close, and can damage the sliding components.
DO:
- Use a soft-bristle brush to loosen dirt before vacuuming.
- Remove both sashes (if designed for it) for a more thorough cleaning.
- Clean corners and edges with a damp cotton swab.
DON’T:
- Use bleach or harsh chemicals on vinyl or wood frames.
- Let moisture pool in the track. Dry it completely after cleaning.
- Force the sash open if it’s stuck. Clean first, then try again.
Tip #2: Lubricate Moving Parts
Double hung windows rely on smooth track movement and balance systems. Without lubrication, these parts wear down faster and cause drag or resistance when operating the sashes.
DO:
- Use a dry lubricant made for window tracks.
- Wipe down the hardware with a clean cloth before applying any product.
- Lubricate both vertical tracks, not just one side.
DON’T:
- Apply lubricant directly onto dirt or debris.
- Use WD-40 or grease; it collects dust and clogs the track.
- Over-lubricate! It can lead to drips and staining.
Tip #3: Inspect the Locks and Tilt Mechanism
The locking system and tilt-in feature are designed to secure the window and make cleaning easier. If these parts are loose or misaligned, the window may not seal properly or could fall inward during use.
DO:
- Test each lock by closing and securing the sash fully.
- Check tilt latches for spring tension or cracking.
- Tighten loose screws with the correct size screwdriver.
DON’T:
- Leave a sash tilted open longer than necessary; it stresses the mechanism.
- Ignore rattling sounds; they often mean a loose or worn part.
- Use excessive force when tilting the sash inward.
Tip #4: Check the Weatherstripping
Weatherstripping helps your window seal out air and water. When it wears out, it leads to drafts, energy loss, and moisture intrusion.
DO:
- Inspect weatherstripping at the beginning of each season.
- Use replacement strips rated for your window frame material.
- Press replacements in firmly and close the window to test for a snug seal.
DON’T:
- Paint over or seal damaged weatherstripping.
- Overlap new strips on top of old ones; remove the old material first.
- Use adhesives not designed for temperature fluctuations.
Tip #5: Clean the Glass Without Damaging the Frame
Clean glass improves visibility and appearance. But excess water or harsh tools can damage the window’s frame or seep into the interior components.
DO:
- Spray cleaner directly onto a cloth—not the glass—to control moisture.
- Use a non-abrasive pad for stuck-on debris.
- Clean window edges and corners where buildup collects.
DON’T:
- Use steel wool, razors, or abrasive brushes.
- Let water drip into the sash cavity or balance track.
- Clean on a hot, sunny day; it can cause streaking.
Tip #6: Watch for Signs of Moisture or Fogging
Moisture between the glass panes means the seal has failed. This reduces energy efficiency and could lead to mold or internal frame damage.
DO:
- Check windows in the morning. Condensation is more visible at cooler temperatures
- Note whether fog is inside the glass or just on the surface.
- Review your warranty if the windows were recently installed.
DON’T:
- Assume all condensation means a seal failure; check humidity levels in your home.
- Delay repair if fogging persists; it only gets worse.
- Drill holes in the window to “dry it out”. This voids most warranties
Tip #7: Test Window Operation Each Season
Double hung windows should glide open and stay put when released. If the sash slides down or gets stuck, parts may be worn, dirty, or misaligned.
DO:
- Open each sash halfway and check if it stays in place.
- Listen for grinding or clicking sounds during movement.
- Confirm the lock engages smoothly when both sashes are closed.
DON’T:
- Jam the sash open if it won’t move. Inspect tracks first.
- Force locks that don’t align. Adjust the sash positioning instead.
- Ignore one sticky window; others may soon follow.
Tip #8: Keep Exterior Frames Free of Buildup
Dirt, mildew, and debris on the outside of the frame can cause discoloration or long-term damage. Regular cleaning improves appearance and function.
DO:
- Rinse the frame with low-pressure water.
- Use a mild detergent and a soft brush for stubborn buildup.
- Clean away cobwebs or organic material trapped in corners.
DON’T:
- Use a power washer near the windows.
- Let water or soap sit on the surface for too long.
- Ignore spots near rooflines or trees; they attract more grime.
When to Call a Professional
Not all issues are DIY-friendly. If your double hung windows are drafty, misaligned, or you’re noticing wood rot, bring in an expert.
You should call for help if:
- The sash is warped or cracked.
- The balance springs are broken or stuck.
- You see signs of water damage inside your walls.
Stay Consistent
Double hung windows are low-maintenance, but not no-maintenance. A quick seasonal check takes less than 10 minutes per window and saves you money over time.
Here’s an effective maintenance checklist:
- Clean tracks and sashes.
- Lubricate moving parts.
- Inspect locks and tilt latches.
- Check and replace weatherstripping.
- Clean glass and frames.
- Look for fogging or seal failure.
- Test operation.
- Wash exterior frames.
Need Help With Your Double-Hung Windows?
Routine maintenance keeps your windows working, but some issues require a professional touch. Whether you’re dealing with drafty sashes, foggy glass, or worn-out hardware, Ameritech Windows is here to help!
Get in touch today to schedule a window inspection, request repairs, or explore energy-efficient replacements tailored to your home.
