Sash and frame surfaces, drainage systems, glass (whether single-glazed or insulating), and hardware all require periodic maintenance for best service, smooth operation, and long life.

• Keep sash and frame surfaces clean, but never use petroleum-based cleaners, solvents, or caustic chemicals on sash or frame surfaces, or glass. Wax aluminum frames with a high quality car wax.
• Keep sill and track areas clean and free of dirt, sand, dead insects, and other debris. Keep weep holes clear. For mechanically joined (screwed together) frames, be sure corners are caulked to prevent water penetration to the interior.
• Keep the glass clean, but do not use a high-pressure spray nozzle when rinsing your windows. Never use a razor blade, putty knife, or abrasive pad to clean the glass, frames, or sash.
• Check the operation of locks, latches, sash balances, and hinges. All hardware must be regularly cleaned and maintained. Use silicone spray if you need to lubricate your window rollers or tracks. Do not use oil-based lubricants, as they may cause metal rollers to collect dirt and nylon rollers to deteriorate.
• Check weather stripping around operable window and door panels to be sure it seals evenly and is not excessively worn or twisted.