George was phenomenal! Loved chatting with Sandra. He was so professional, very knowledgeable, very polite, very friendly, no pressure just goid information and wanting to do what's the right & good thing for our family's HVAC needs!
About On Time Experts (fka Dring Air Conditioning & Heating)
Dring Air Conditioning & Heating is a trusted, family-owned HVAC company serving the DFW metroplex since 1953. They have experienced technicians who offer fast response times and can provide maintenance agreements for both new and existing heating and cooling systems. Customers have praised the professionalism and friendly attitude of the staff. Technicians like Michael, Kyle, and Brody have delivered thorough and efficient service, with Michael impressing a customer with his promptness, professionalism, and informative approach. He was able to get an upstairs unit functioning again, which had not been used in years. Another customer appreciated Kyle for his helpfulness during a water leak check, sharing valuable tips for maintaining plumbing. Brody was also noted for his detailed explanations, ensuring customers understand the services and options available. The company is known for reliable, expert service and helpful solutions for their customers, with good follow-up demonstrated by their attentive staff.
Reviews
Excellent service! Keith was on time, friendly and explained everything he was going to do before he started. During the maintenance he continued to update me on his progress. He made sure I was happy and didnt have anymore questions before he left.
Steve did an exceptional job of cleaning our HVAC System. He was thorough in ensuring every item worked as normal and within manufacturer specifications. I will continue to use and recommend On Time Experts for all of my HVAC needs. Thank you for taking care of military, firefighter, and police personnel.
Photos

Hours
Good to know
- on-site services
- no online estimates
- accepts credit cards
- offers military discount
- open to all
Location
2440 Lacy Lane Ste 110, Carrollton, TX 75006
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