Here at Donnie Burnside and Sons, we would like to take a moment to thank you for your business for the last 50 years. Family owned and operated since 1958, we've worked hard to bring the Collin Country are the best in high efficiency products, services, and reliability to our customers. Our company is a member of the Mckinney Chamber of Commerce and the Better Business Bureau. Donnie Burnside & Sons offers the highest quality air conditioning, heating, and indoor air quality products for residential and commercial customers at flat rate pricing. Our factory trained and NATE certified technicians are pleased to assist you with planned service, duct cleaning, and indoor air quality products. For customers who require financing we offer a financing program. We here at Donnie Burnside and Sons are looking forward to serving all your air conditioning, heating, and indoor air quality needs.