SPEAK WITH OUR COMMERCIAL AND RESIDENTIAL HVAC CONTRACTOR IN MINEOLA, TX Herrington Heating & Air Conditioning is a leading HVAC contractor that provides service in Mineola, TX and the surrounding area. With more than 20 years of installation and repair experience, we should be your first choice for HVAC repairs in East Texas. You can count on us to do the job right for a fair price. Call us at 903-569-9584 today to speak with one of our local technicians about your HVAC needs.