The available Guardian residential garage door openers are the model 628 Pro Series 3/4 HP and the model 315 Core Series 1/2 HP, as of September 2015; although the Guardian garage door opener models do not have online ratings or reviews, they are backed by a warranty, according to ADHGuardianUSA.com. Guardian Access & Door Hardware Company has manufactured quality, reliable garage doors, components and openers for 30 years in 30 countries and six continents.
Finding professional online reviews of garage door openers from reliable sources such as Consumer Reports is a challenge, according to ConsumerSearch.com. Some things to consider with different Guardian models are the noise factor, remote control reliability, battery back-up and keypad entry options. Choose a model with an appropriate motor size in order to accommodate the door's size and weight.