Use the movement as your description
Does the door remain fully closed, rise a little, stop while opening or reverse while closing? Say whether it looks level and whether you heard an unfamiliar sound during normal use. Describe what you observed rather than repeatedly operating the door to reproduce the problem for a phone conversation.
Mention the kind of control you used and whether the behavior differs between controls, if you already know. A remote that does not respond and a door that begins moving but stops are useful distinctions. They still do not establish the cause without an appropriate assessment of the actual door and equipment.
Leave the opening clear
Keep people, pets and vehicles away from the door's path when its movement is unreliable. Do not work on springs, cables or other loaded parts, or go beneath an unstable door. Explain if a vehicle is inside and whether there is another ordinary entrance to the garage that you are authorized to use.
Be specific about the part that will not work. The large moving garage door is different from a keyed door between the garage and the home. If the difficulty is a key or latch on that smaller entrance, lock repair or a home locksmith enquiry may better describe the request.
Agree on a private repair request
This service enquiry concerns repair of private residential garage doors. Give the Lancaster address, describe the door and arrange for the homeowner or another properly authorized person to discuss the work. If you rent, establish who approves repairs before a decision is made about the property.
Ask about availability, whether the described request is suitable and how the repair charge and scope will be explained. Include any ordinary access restrictions at the house. Call 469-455-2195 with your observations, and ask for an updated explanation if an assessment changes what is recommended.