Is all-star cooling & heating a reliable company. )fact check)

Dear Elizabeth,
You have not told us where this company is!
There are likely 1,000 "all-star cooling and heating" companies in the United States alone, much less the rest of the English-speaking world.
Call your local Better Business Bureau, or your local Chamber of Commerce and ask them.
Fixya does not opinion-ate on the service of any business.
Fixya might be able to tell you if such a business needs to be called if you were to tell us what exactly is your problem with one of the products in your home.
God bless your efforts.