7 mechanical contractors in San Jose, CA. 7 of them carry a Google rating, from 3.9 to 5.0 stars across 132 reviews — 4 sit at 4.5 or better. 7 list a phone number and 7 a website. Best-rated first; contact them yourself, we don’t resell your details.
Mechanical contractors work on rooftop units, chillers and building-wide systems rather than home furnaces. If you are specifying for a commercial property this is a different set of firms, with different licensing and bonding.