Prices are predicated upon a visual check of your door, as certain space limitations require additional installation costs. Our warranty for Liftmaster openers includes one-year parts and labor. Allister openers are are warrantied for two years parts and labor. Failures due to power surges, abuse and acts of God are excluded. Sears openers have half chain and half cable, a plastic pulley for the cable portion, and track divided into three or more parts.
Cables fray and track junctions loosen, resulting in future expenses down the road.
You pretty much get what you pay for. Mechanically, the Allister opener is built like all the v-belt drive openers of the past that have lasted for decades. The motor pulley turns a v-belt, which turns a larger pulley which is secured to the drive shaft. At the other end of this shaft is a sprocket which moves the opener chain. Over the 20 years I have serviced Allister openers I have never replaced a drive shaft or worn bushing.