LiftMaster® MAXUM Commercial
Door Operators

MAXUM is LiftMaster's current commercial operator platform, built around the two things a facility feels most: speed and downtime. DC drives move the door at roughly 12 inches per second, soft-start and soft-stop take the shock out of the system, and a four-line LCD at floor level puts diagnostics at eye height instead of up a ladder.

Rivett specifies, installs and services the line through our Overhead Door Division in Whitby, covering Durham Region, the Greater Toronto Area, Kingston and Eastern Ontario, backed by a 24-hour service line at 1 (905) 424-2512.

  • Facility-wide visibility Works with myQ® Facility software

LiftMaster® MAXUM Commercial
Door Operators

MAXUM Operators, Specified and Serviced by Rivett.

Rivett Architectural Hardware Ltd. storefront in Whitby, Ontario

MAXUM Operators, Specified and Serviced by Rivett.

LiftMaster builds the operator. We make sure it is the right one for the opening: matched to the door type, the weight class and the cycles the door will actually see in a day, in a NEMA 1 or a NEMA 4X enclosure depending on what the environment throws at it.

Tell us the door, the size, the weight and the daily cycle count, and whether you have single or three phase at the wall. We will come out to your site anywhere from Durham Region to Kingston, look at the opening, and quote the operator that fits the building, then service it ourselves afterwards.

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Why Specify MAXUM Through Rivett

LiftMaster builds the operator. What your facility lives with is who sized it,who installed it, and how fast someone gets there when a door stops.

myQ® Facility Software

See door status, usage and activity across the site from one place, and use the data to schedule work before a door fails.

Floor-Level Diagnostics

A four-line LCD brings programming, troubleshooting and the maintenance schedule down to the floor, which is where the time and money get saved.

Soft-Start and Soft-Stop

Controlled acceleration at both ends of travel extends the life of the operator, the springs and the door hardware, not just the motor.

Sized to the Weight Class and the Environment

700, 1200 or 2200 lb models, NEMA 1 or NEMA 4X, mounted left or right, specified against the opening rather than the price list.

Monitored Entrapment Protection as Standard

Every operator ships with a monitored entrapment protection device, so the installation meets current UL 325 requirements out of the box.

24-Hour Service and Planned Maintenance

A dedicated emergency line at 1 (905) 424-2512, plus scheduled servicing that keeps the cycles up and the call-outs down.

Trusted Since 1977

Not Sure Which MAXUM Operator You Need?

Call 1 (905) 668-4455 with the door type, size, weight and daily cycle count. We'll match you to the right MAXUM operator and book a site visit.

Commercial Operator Services We Offer

From specification to installation and planned maintenance, our overhead door division supports every operator we supply.

Operator Installation

Jackshaft, hoist and trolley operators installed and commissioned.

Repairs & 24-Hour Service

Emergency dispatch for doors that won't run.

Planned Maintenance

Scheduled inspections and adjustments on high-cycle doors.

Safety & Accessories

Wall controls, radio controls, photo eyes and safety edges.

Frequently Asked Questions.

The door decides most of it. A jackshaft mounts beside the shaft and suits high-lift, vertical-lift and rolling doors; a hoist model is the same idea with a manual chain hoist added, which is what most people want on rolling steel; a trolley mounts on the ceiling and suits standard-lift sectional doors. After that it is weight class and cycle count. Send us the door details or let us come and measure. call 905-668-4455 and we will walk through it.

Visibility. Each operator has Wi-Fi connectivity built in, so door status and usage across the site come back to one dashboard. In practice it is used for two things: knowing which doors are open when they should not be, and scheduling maintenance on the doors that are doing the most work instead of the ones that happen to be on the list.

Yes. Hoist models include a manual chain hoist, jackshaft models have a floor-level manual release, and battery backup is available across the line so the door keeps cycling on its own for a period after the power drops. We will spec the manual release to suit how the door is actually used. An egress door and a shipping door are not the same problem.

Yes. Every MAXUM operator ships with a monitored entrapment protection device included, which is what current UL 325 requires for commercial door operators, and NEMA 4X units ship with the sealed equivalent. Additional photo eyes, light curtains and sensing edges can be added where the traffic pattern needs them. We test and document the safety devices at commissioning.

Both. We service the LiftMaster operators we did not install, and we replace older AC units with MAXUM equivalents usually without touching the door itself, provided the door and counterbalance are sound. We cover Durham Region, the GTA, Kingston and Eastern Ontario. If a door is down now, call the overhead door line at 905-424-2512; it is staffed every day of the year.

Three Locations Full Coverage

49 years of local knowledge across Ontario. Each location is staffed with product
specialists who know the lines.

Whitby, Main Office & Showroom

All services: doors, hardware, garage doors, fabrication

111 Industrial Drive, Unit 1
Whitby, ON L1N 5Z9

1 (905) 668-4455

Mon – Thu 8:00 AM – 5:00 PM Friday 8:00 AM – 1:00 PM

Whitby, Overhead Doors Division

Residential & commercial overhead doors, service dispatch

105 Industrial Drive, Unit 6
Whitby, ON L1N 5Z9

1 (905) 668-4455

Mon – Thu 8:00 AM – 5:00 PM Friday 8:00 AM – 4:00 PM

Kingston, Eastern Ontario

Doors & architectural hardware

620 Cataraqui Woods Drive
Kingston, ON K7P 1T8

1 (613) 389-5218

Mon – Thu 8:00 AM – 5:00 PM Friday 8:00 AM – 1:00 PM

Do not see your area listed? Call 1 (905) 668-4455 (Whitby) or 1 (613) 389-5218 (Kingston). We regularly serve projects beyond these boundaries.

  • Canadian Door Institute
  • Door and Hardware Institute
  • Whitby Chamber of Commerce
  • Durham Construction Association
  • Kingston Construction Association

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