To keep your door hinges and locks operating smoothly and quietly, regular lubrication is essential. Here's a professional tip for effective maintenance: Recommended Lubricants: For Door Hinges: Use a silicone based lubricant or How to Troubleshoot a Squeaking Door Hinge HGTV You can remedy a squeaky door hinge with a shot of dry lubricant. But protect the surrounding woodwork from overspray by slitting a piece of thin cardboard. Read more at the How to fix a squeaky door Best Lubricant for Door Hinges: 3 That Work + 5 to Avoid Residence Supply