Start with an assessment
Ask a qualified contractor to document the failure and the condition of connected components. A motor fault does not necessarily mean the door must be replaced; structural damage may change the decision.
Compare complete scopes
Compare repair and replacement proposals including parts, labor, removal, installation, access equipment, lead time, exclusions, and warranty. A low initial price can omit work necessary to return the bay to service.
Consider the next service cycle
Review prior failures, repair costs, and equipment usage. Ask about parts availability and the expected limitations of a repair. Avoid treating an estimate as a guaranteed remaining equipment life.
Plan the operating window
For replacement, define how the contractor will stage the work and how the facility will route traffic around the affected opening. Confirm who signs off on the completed service.