Caterpillar, Comfort Systems USA, and Quanta Services are the three Construction stocks to watch today, according to MarketBeat’s stock screener tool. Construction stocks are shares of publicly traded companies involved in building and infrastructure, such as contractors, homebuilders, engineering firms, and suppliers of construction materials and equipment. These companies had the highest dollar trading volume of any Construction stocks within the last several days. Comfort Systems USA (FIX)Comfort Systems USA, Inc., together with its subsidiaries, provides mechanical and electrical installation, renovation, maintenance, repair, and replacement services for the mechanical and electrical services industry in the United States. The company’s Electric Power Infrastructure Solutions segment engages in the design, procurement, construction, upgrade, repair, and maintenance of electric power transmission and distribution infrastructure and substation facilities; installation, maintenance, and upgrade of electric power infrastructure projects; installation of smart grid technologies on electric power networks; and design, installation, maintenance, and repair of commercial and industrial wirings.