Sadly, like just about any other thing on this earth, sliding doors are not perfect. Dust, other pollutants, small trash, and weather can all be factors for sliders and door rollers to get worn or damaged (or even broken). A quick tune-up or repair session can make your door working like brand new once more.
If your problem is just dirt, pieces of food, or small items stuck in the slider then it is just a matter of getting those things out. You can take out your vacuum cleaner for a spin and aim the suctioning part of the cleaning device towards the slider. You can also splash the sliders with a soapy water mixture to force the dirt and grime out.
Take note that the above solutions do not work for all problems concerning your doors. There are times when part replacement becomes imminent. Do not go to the nearest hardware store and pick up any roller you see. Contrary to popular belief, parts for sliding doors vary in all shapes and sizes. Locks, rollers, and sliders differ from one piece to the next. If you do not know exactly what you need then better ask someone who knows what to purchase or contact professionals to get your sliding doors fixed properly.
Many homeowners will prefer getting experts to do the job instead of heading for the DIY direction. If you live in Australia then better call the guys at Window Revival.
The company has over eight years of experience in repairing sliding doors among many other services. They can also do sliding window repairs, aluminium window painting and restoration, window tinting (non-auto), security screen installation and repair, and glass replacement (non-auto). Their expertise has already led them to have hundreds of clients in the sliding door department.
For more information regarding their services, you can opt to visit their website for a free quote at http://windowrevival.com.au, or give them a ring at 1300 882 482.