Belt-drive openers are much quieter than chain-drive. Chain-drive openers cost less. For any home with bedrooms above or next to the garage, we recommend belt-drive.
How they work:
Chain-drive: a metal bicycle-style chain runs along the rail, pulling the trolley that opens and closes the door. Same basic mechanism since the 1960s.
Belt-drive: a rubber-reinforced belt (similar to a serpentine belt in a car) runs along the rail. No metal-on-metal contact in the drive train.
Side-by-side comparison:
Noise level:
Chain-drive: a metal chain on a metal rail. You hear it through the ceiling and in the room above.
Belt-drive: a reinforced rubber belt with no metal-on-metal contact in the drive train. Noticeably quieter.
The gap widens over time as chains stretch and get noisier.
Wear:
Chain-drive: chains stretch and need periodic adjustment. Belt-drive: no chain to stretch or lubricate. Either way, most openers last about 10 to 15 years, according to Genie; the opener lifespan guide covers the parts that wear.
Cost (installed in MA):
LiftMaster 2220L chain drive with camera: $574 installed.
LiftMaster 6580L belt drive with camera and battery backup: $804 installed.
LiftMaster 98022 wall-mount (jackshaft) with battery backup: $1,049 installed.
Opener installation overall runs $574 to $1,229 installed, depending on the model.
Lifting power:
Both drive types come in several motor ratings: LiftMaster's 2220L chain drive is a 3/4 HPs model and its 6580L belt drive a 1 HPs model. Match the rating on the model's page to your door's size and weight, not to the drive type.
Maintenance:
Chain-drive: lubricate chain every 6-12 months. Tighten as it stretches. Eventually replace.
Belt-drive: essentially zero maintenance. The belt is a sealed unit until it eventually wears out and is replaced as a whole assembly.
When chain-drive still makes sense:
Detached garage with no bedrooms or living space adjacent.
A tight budget.
A very heavy custom door, where the model's lifting rating matters more than its noise.
Workshop or barn application where noise isn't a concern.
When belt-drive is the clear choice:
Any attached garage with bedrooms or bathrooms directly above (this is most modern MA homes).
Open floor plan where the garage door noise carries through the house.
Early-morning departures or late-night returns where opener noise wakes others.
Special case. Jackshaft openers: wall-mount openers (such as the LiftMaster 98022 and the Genie 6170H-B) skip both belt and chain entirely. They drive the door's torsion shaft directly with a small wall-mounted motor. They free up ceiling space, but they cost more ($1,049 installed against $804 for our LiftMaster belt drive). Worth it for high-ceiling garages, attached garages with above-garage living space, and homes where ceiling-mount opener placement is awkward.
What we recommend: belt-drive for attached garages, and a wall-mount where there is living space above the garage or the ceiling layout is awkward. Schedule installation.