Since 1975, we have provided Houston and surrounding area families and businesses with quality residential & commercial HVAC services. At Douglas Mechanical, Inc., our certified technicians receive the latest in industry training and continuing education to ensure the job is not only done right the first time, but to highest standard of service and quality. Our goal is to exceed your expectations by providing you with personalized service and focusing on your true comfort needs. We are your source for modern heating, cooling, ventilation equipment and servicing.