Providing Pasadena residents and business owners with cost effective air conditioning, cooling, HVAC sales, repair, service and maintenance programs is Terri-o's only business. For over 20 years, that's all we've done for more than 2, 500 customers...and that's all we plan to do. With Terri-o vehicles on the road and radio dispatched, we provide a higher level of professional service and value to each and every one of our customers than any other Pasadena, South Houston, Deer Park, La Porte A/C contractor. As one of south Texas oldest, largest and most respected Houston Power & Light participating independent contractors, Terri-o Air Conditioning & Heating will provide prompt, professional solutions for your air conditioning sales, repair, service and maintenance needs, 24 hours a day, 7 days a week, 365 days a year. Terri-o Air Conditioning & Heating supports, sells and services a variety of quality major manufacturer air conditioning makes & models including: