J & J Mechanical is a design and build mechanical contractor that specializes in providing solutions regarding workplace comfort, environment, construction and energy issues. Its services include fabrication, installation, piping and plumbing. The company provides installation of refrigeration, exhaust, dust and mist collection, and heating, ventilation and air conditioning systems. It also offers a variety of facility automation services that includes control system design, systems integration, commissioning, operator training, and remote monitoring and diagnostics. J & J Mechanical provides services for a range of facilities that includes office buildings, shopping malls, convenience stores, movie theaters, restaurants, industrial structures, hospitals and laboratories. The company is a part of Comfort Systems USA and maintains its office in Louisville, Ky.