Maintenance guide
How to Maintain Aluminum Windows and Doors (A Practical Checklist)
Aluminum frames are the lowest-maintenance option in the market — but "low maintenance" is not "no maintenance." A few minutes of care a year keeps hardware working and seals effective.
By X Star Industry Co., Ltd Technical Team · Published August 6, 2026
The good news about aluminum
No painting, no sanding, no sealing — the powder-coated finish protects the metal for years. But a little regular care keeps everything working smoothly.
Every 3 months
1. Clean the frames
Wipe frames with a soft cloth, mild soap and water. Avoid abrasive cleaners and steel wool — they scratch the powder coating. For stubborn marks, use a non-abrasive cleaner made for aluminum.
2. Clean the tracks
Sliding door tracks collect dirt, sand and grit — the number-one cause of poor sliding performance. Vacuum the track, then wipe with a damp cloth. A clean track is a smooth track.
3. Check the drains
Weep holes at the bottom of the frame let water escape. If they clog, water pools inside the frame. Clear them with a small brush or compressed air.
Every 6 months
4. Lubricate moving parts
Use a silicone-based lubricant — not oil, which attracts dirt — on rollers, hinges and locks. One spray, wipe the excess.
5. Inspect weather seals
Run a finger along the gaskets and seals. If any are cracked, hardened or loose, replace them before they leak.
6. Check the glass
Look for seal failure in double-glazed units — condensation between the panes means the sealed unit has failed and needs replacement.
Once a year
7. Tighten hardware
Screws on handles, hinges and locks work loose with use. Tighten them with the correct driver — don't overtighten, which strips the thread.
8. Test the locks
Apply lubricant to lock mechanisms and test from both inside and out. A lock that fails in winter fails when it matters.
9. Inspect the powder coating
Small scratches can be touched up with matching paint before they rust. Minor surface scratches rarely affect the metal underneath, but bare aluminum exposed at edges should be protected.
What to avoid
- Steel wool and abrasive pads — they scratch the finish
- Strong solvents and acidic cleaners — they strip the coating
- Oil-based lubricants on tracks — they attract dirt and gum up rollers
- Pressure washers aimed at the frame — water can force past the seals
When to call the installer
- A sliding door that no longer slides smoothly after cleaning
- Water leaking past the frame during rain
- A double-glazed unit with visible condensation inside
- Locking hardware that jams despite lubrication
Catching these early turns a small fix into a small fix.
Quality frames start with quality manufacturing
The best maintenance routine cannot fix a poorly made door. X Star's powder-coated aluminum systems are built to stay low-maintenance for decades — and every order is trial-assembled before shipping. Send your project scope and we'll confirm the right system for your climate.