Therma Tech has steadily built its reputation in its nearly 7 years in business. During this time we've earned a place as the trusted partners of San Jose and Modesto homeowners and business owners. Our HVAC installation, maintenance and repair services give you the flexibility to stay comfortable throughout the year - whether you need us to tune up your existing system or install a brand new furnace or air conditioner. We offer an array of services, including our Comfort Club membership that confers preferred customer status on our members. You'll save 10% on repairs, enjoy guaranteed appointments and so many other benefits that can save you up to 30% on your energy bill over the course of a year!