Openers
At United Door, we understand that your business needs to be accessible to your employees but secure from intruders. We install only the highest quality operators for our commercial and industrial door systems. From light-duty to heavy-duty applications, our operators work 24/7 to keep your business running smoothly. Our entire commercial line is UL 325-compliant and customizable to meet your specific needs.

Light-Duty
Ideal for applications with limited hourly cycles, light-duty operators are strong, powerful and highly reliable.

Medium-Duty
Ideal for increased door weight and frequency of cycles, medium-duty operators make a strong addition to any facility.

Industrial-Duty
Nothing compares to the strength and smarts of LiftMaster industrial-duty operators. Customizable to any environment, these are must-have openers for the toughest workplaces