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The Most Reliable Name in Heating & Air Conditioning for Norman, Oklahoma: Interstate Heating & Air Conditioning

Interstate Heating & Air Conditioning: Make Your House a Home

Interstate was started in 2002 by a former HVAC technician, and has become the most trusted name in HVAC for Norman families since that time. Every Interstate HVAC technician is highly trained, background checked, and drug-free. In addition to our knowledgeable staff, we also put our customer’s needs first by offering 24/7 service, no overtime charges, and a 100% satisfaction guarantee. We’re always here when you need us.

When We Say 100% Satisfaction Guarantee, We Mean It!

Interstate’s commitment to excellence has not only earned us an excellent reputation across Oklahoma, but it has also earned us an A+ rating with the BBB. Each day we continue to work to maintain that level of sterling service. Our heart and soul is put into each job, and our promise to you is that we will do the job right the first time, from start to finish. If for whatever reason you aren’t 100% satisfied with our work, you don’t have to pay. That’s how serious we are about our commitment to excellence.

Join the Interstate Family and Save!

To help ease the cost of regular and unplanned HVAC maintenance, we have created a couple of options to best serve families in Norman. The first being our Interstate Maintenance Club. Membership is affordable on any budget–only $14.95 a month–and members receive a wide arrange of benefits from free, twice a year precision tune-ups, 20% discount on repairs, no overtime charges, and appointments within 24 hours. If that’s not a great fit, but cost is still an issue for you, Interstate offers a wide variety of financing options. Financing plans are always available to our customers (subject to credit approval). Don’t hesitate to discuss your payment options with us–we’re here for you!


  • “Best service ever!!! My heat quit working about two weeks ago and I called them after looking up their reviews on another site. Great reviews by the way. I am pretty skeptical about a company with so many really great reviews. I took a chance. The lady I talked to was so sweet and knowledgeable. She got me scheduled right away. When my tech arrived he made me feel so comfortable. He went right to work and told me that my board was out. He told me what it would cost to fix it and wow! My furnace was 30 years old and I really didn’t want to spend a lot to fix it. He asked me if I wanted him to repair it. I said no. I asked him what it would take to get a new one. I decided to get a new furnace. The next day Mike and Nick showed up to put my furnace in. These guys were the best. I wish I could adopt them. They were polite, clean and very funny. It took them a little bit to get everything in and going so I got to talk to them a bit. They are very good at what they do. They wore these shoe covers and put these mats down. That was very nice touch. My job was done and I had heat. My new furnace is so quiet. I kept going back to see if it was running. I can’t say enough about the great people and terrific job they do. Thank you Interstate you have restored my faith that there are still good companies out there.”

    – Jessie H., Norman, OK

Don’t wait to get your HVAC system in order. Give Interstate a call at (405) 794-8900 and get on the road to comfort!