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DIY garage door repair can be a cost-effective option for minor issues or maintenance tasks. However, it's important to note that garage doors can be heavy and potentially dangerous if not handled properly. If you're not comfortable or confident in your abilities, it's best to consult a professional. Regular lubrication can help improve the smooth operation of your garage door. Apply a silicone-based lubricant to the rollers, hinges, tracks, and springs. Avoid using grease or oil-based lubricants, as they can attract dirt and debris. If your garage door is not opening or closing properly, the tracks may be misaligned. Use a level to check the alignment of the tracks and make any necessary adjustments. Loosen the screws or bolts holding the track in place, gently tap the track with a rubber mallet to align it, and then tighten the screws or bolts.