For over 35 years, R.J. Mechanical, Inc. has been the trusted name in union HVAC services across Northern California. Specializing in mechanical systems, this construction company delivers expert heating, cooling, and air quality solutions. Based in Cotati, they proudly serve a diverse clientele, from commercial enterprises to residential homeowners. Their experienced team is dedicated to providing reliable repair, maintenance, and... Read More about R.J. Mechanical, Inc.