Dont wait until your garage door looks like this
HOW DO I KNOW IF MY GARAGE DOOR NEEDS A SERVICE ?
If your door is not opening or closing properly or making unfamiliar noises clearly it needs attention. We recommend operating your door manually at least once per year to do so carefully disengage the door from the motor, to do this safely the door should be closed or just off the ground, the door should be as easy to open as it is to close, if this is not the case a service would address that
SHOULD I SERVICE MY DOOR EVERY 12 MONTHS ?
For piece of mind yes but not necessary, after the initial installation the door should definitely be serviced within 12 months, there after as above.
CAN I SERVICE MY DOOR MYSELF ?
Lubricating parts is fairly simple but not all doors can be lubricated, there is also parts under extreme tension and weight load, therefore self servicing is not recommended.
To get the most life out of your garage door motor your garage door needs to be balanced and working at its optimum. A well maintained garage door can last 20+ years, the motor on that door should last 10-15 years, lack of servicing can significantly reduce that at a susbtantial cost.