Sierra Air Conditioning & Heating takes great pride in serving the entire Midland, TX area and surrounding communities with the best commercial and residential HVAC services in town. We specialize in commercial HVAC, residential HVAC, heating, cooling, air quality, indoor air control. thermostat installation and service, new furnace sales and service, water heater sales and service, air duct installation and cleaning, new construction plumbing installation, new construction heating installation,