
The Ultimate Source for Replacement Window & Door Hardware
Don't replace the entire door—just fix the broken hardware. Prime-Line is the undisputed leader in residential replacement parts. If you have a sticky sliding glass door, a broken window crank, or a ripped screen, Prime-Line manufactures the exact OEM-matching rollers, locks, latches, and channel balances required to restore your home's fixtures to perfect working order.
Sliding Glass Door Rollers
When a patio door takes two hands to open, the bottom rollers are usually corroded or flattened. Prime-Line manufactures hundreds of different roller assemblies (steel, nylon, and ball-bearing). To find the exact fit, you must remove your sliding door, pull out the old roller assembly, and match the housing shape, wheel diameter, and mounting holes to the Prime-Line catalog.
Window Channel Balances
If your single or double-hung window slams shut the second you let go, the internal channel balance is broken. Prime-Line provides exact replacements for block-and-tackle and spiral balances. You must measure the length of the metal channel and match the stamped weight code to ensure the new balance can support the weight of the glass sash.
How do I identify the correct Prime-Line replacement part?
Because there are thousands of different window and door manufacturers, hardware is incredibly specific. The best method is to remove your broken part, measure its exact dimensions (length, width, hole spacing), note any stamped numbers, and visually match its profile against Prime-Line's detailed technical drawings.
Are nylon or steel sliding door rollers better?
It depends on your climate and the weight of the door. Nylon rollers are incredibly quiet and roll smoothly on aluminum tracks without chewing them up. Steel ball-bearing rollers are louder but are required for massive, heavy double-pane glass doors, and they resist flattening much better over time.